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Residential Connectors

What are the advantages of stainless steel gas connectors?

The first advantage is strength. Stainless steel is an extremely strong metal. It delivers superior performance vs. brass in a wide range of standard performance tests – including greater tensile, torsion, hydrostatic and axial strength. A second advantage is corrosion resistance. Stainless Steel is an excellent all-purpose metal that is resistant to a wide range of corrosive substances. It addresses concerns regarding corrosion caused by ammonia (found in common household cleaning solutions) and sulfur (sometimes present in natural gas).

What is the advantage of Dormont’s stainless steel gas connectors?

The significant advantage of Dormont stainless steel gas connectors is their No-Neck® Design. Dormont Safety System™ stainless steel gas connectors have an exclusive design in which the first few corrugations are protected by the flare nut. Unlike all other brands, the exclusive No-Neck Design protects the non-flexible tubing neck when there is a sharp bend at the connector end.

What problems and safety issues are associated with brass connectors?

Brass connectors are very susceptible to corrosion by ammonia and ammonia-containing common cleaning chemicals.  The corrosion may cause pinholes and cracks, which may result in hazardous gas leaks.

Brass is also susceptible to damage from work hardening due to even small amounts of vibration.   Some appliances may produce enough vibration to cause failures in brass connectors over time.   Because of the inherent problems with brass connectors, manufacturers were required to coat their products.  While the coating helps, it can easily chip or crack, which can undermine the purpose of the coating.

Why do I need a coating?

While stainless steel is a strong and durable metal, Dormont’s Safety Shield® coating provides added protection against corrosive chemicals.

Does the coating need to be yellow?

Safety Shield® is provided in a vibrant yellow color, which is the industry-recognized color for gas line identification.

What are EFVs?

Excess Flow Valves (otherwise known as EFVs) are custom engineered fittings designed to provide added protection in the event of a complete rupture of the gas appliance hose.  Consisting of an internal valve mechanism, under normal conditions the valve remains opened, allowing gas to flow at normal gas line flow rates.  In the event of a complete downstream gas line rupture, which causes excess gas flow, the EFV is automatically tripped (closed), greatly reducing the gas flow. This reduced flow is maintained until the upstream manual shut-off valve is closed and the gas line is repaired. After the gas line is repaired and the pressure is equalized, the EFV will automatically reset and restore normal gas flow.

Do I need an EFV to be up to code?

Please contact your local Code Official to determine if your locality requires appliance EFVs.

What are flare fittings?

Flare fittings provide a mechanical method of attaching tubing to fittings. The flare fitting design used by gas appliance connectors is derived from the SAE J512 Standard. It provides a gas tight metal-to-metal seal by sandwiching the stainless steel tube between a flare nut and an adapter. Besides gas connectors, flare fittings are commonly used in high performance automotive, refrigeration, and hydraulic applications.

What is a “Mismate” thread?

In the early days of the 5/8” OD / ½” ID gas connector, the flare nut threads were approximately the same size as a ½” NPT pipe thread.  There was a potential for an incorrect installation to occur when SAE flare nut threads were inadvertently attached to NPT pipe threads.  This arrangement would not seal because the NPT threads do not have a flare surface to mate with the SAE flare, which provided a dangerous condition. The ANSI Technical Advisory Group (TAG) for Gas Connectors changed the design requirement for the 5/8” OD/ ½” ID (30 series) connector to require a 15/16 – 16UN thread which cannot be accidentally mated with a ½” NPT pipe thread.

What are product standards?

Product standards are a list of requirements that a governing body creates to determine if a manufacturer’s product will be safe when used in an installation.  The requirements can include specifying the materials used to construct the product along with performance tests that the product must pass in order to be given the approval to be sold in the marketplace.  Governing bodies include CSA Laboratories (formerly known as the American Gas Association or AGA), Underwriters Laboratories (UL) and The International Association of Plumbing and Mechanical Officials (IAPMO).

What are installation/model building codes?

Installation/model building codes are rules that govern where and how gas connectors may be used in specific applications.  There are several regional and national building codes, including the International Fuel Gas Code and the Uniform Plumbing Code.  The codes typically refer to the applicable product standard to maintain a connection between how the product is used and how it performs when installed.

What are the applicable installation/model building codes?

Applicable installation/model building codes include Regional and National codes such as ICC, BOCA, SBCCI, UPC along with many others.

What does MIP stand for?

MIP is an acronym for Male Iron Pipe Thread.

What does NPT stand for?

NPT is the acronym for American National Standard Taper Pipe Thread.

What does FIP stand for?

FIP is an acronym for Female Iron Pipe Thread.

How should the connector be installed?

Please see our installation instructions for complete details.

How do I choose the right diameter?

Dormont has categorized its diameters by series to simplify the selection process.  We have created 10, 20, 30, 40, 50, and 60 series connectors. Appliance connector diameter shall not be less than that of the inlet connection to the appliance as provided by the manufacturer, and must be of adequate size to provide the total gas demand of the connected appliance.

How do I choose the right length?

The correct connector length, once installed, should allow the appliance to be moved from the wall for adequate service/installation access.  The connector should be long enough to reach from the gas supply line to the appliance without stretching.  Avoid excessive lengths that may cause kinking.  Never join 2 or more connectors together.

What is the maximum length of a gas connector?

Gas connector standards, ANSI Z21.24, Z21.75 & Z21.69, permit connectors up to 72” in length.  In the state of Massachusetts, the connector length is currently restricted to a maximum of 36”.

Can you put two hoses together?

CSA design-certifies gas connectors up to 6’ (72”).  Joining two or more connectors is not permitted by installation codes or product standards.

Can gas connectors be placed underground?

No.  Flexible gas connectors can only be used above ground.

Can gas connectors run through a wall?

No.  The gas supply outlet must be in the same room as the appliance and the connector must not be concealed within or run through any wall, floor or partition.

Can I reuse a gas connector?

No. According to the requirements of the CSA specification that governs appliance gas connectors, the connector and fittings are design for use only on the original installation and are not to be reused for another appliance or at another location.

Is a manual gas shut-off valve required by code?

A gas shutoff valve that has been design certified to ANSI Z21.15 is required to be installed 6’ upstream of the gas appliance. This requirement is specified in the National Fuel Gas Code (ANSI Z223.1).

Can these connectors be used outdoors?

Yes.  ANSI Z21.75 covers gas connectors for outdoor applications. Dormont Safety System™ Gas Connectors are design certified to this standard.  To further protect the connectors from harsh environmental conditions, Dormont offers an optional PVC coating for outdoor connections.

How do I leak test the connector?

After the connector has been installed, use a non-corrosive leak detection solution (CHLORIDE FREE) to check for leaks.  Do not use dish detergent, laundry soap or other household products as they may contain chlorides.  Bubbles will be present at the leak location.  Rinse the leak detection solution from the connector and thoroughly dry after the test.  Never use an open flame to check for gas leaks.

Can natural gas be detected by scent?

Natural gas is a colorless, tasteless and, in its pure state, odorless vapor. It is odorized with mercaptin so that its presence can be detected. If an odor is detected, turn off the gas to the appliance and have a qualified professional identify the source of the leak.

Can flare fittings from other manufacturers be used with a Dormont connector?

No.  Only flare fittings supplied with the flexible connector may be used to attach it to the appliance and gas supply source. This is a requirement of the ANSI Standard to ensure that properly designed fittings are used to make safe connections.

When should a gas connector be replaced?

Stainless steel flexible gas connectors are designed to last the life of the appliance. Gas connectors should never be re-used. They should be replaced if an appliance is moved to another location, a new appliance is installed, or if the connector is damaged.

Can the appliance be moved without damaging the connector?

The appliance can be moved periodically to inspect the connector or clean behind the appliance.  Use caution when moving the appliance so the connector is not damaged by crushing or over stretching.

Can anything damage a stainless steel connector?

Gas connectors are designed to resist crushing and tearing under normal usage conditions. Stainless steel is an excellent material choice to protect gas connectors from corrosion. As stated on the warning tag, gas connectors should not come in direct contact with soldering fluxes or chemicals, particularly those containing chlorides.

What is pressure drop?

Pressure drop is the difference between the inlet pressure and the outlet pressure of the gas connector.  The following are a few application rules regarding pressure drop:

  • The outlet pressure is always less than the inlet pressure because of flow resistance / frictional losses inside of the connector.  
  • Flow through the connector increases as the pressure drop increases.
  • Pressure drop always decreases when the connector diameter is increased.
  • Pressure drop increases as connector length increases.

How does pressure drop affect the gas appliance?

The sum of the appliance gas pressure requirement (appliance nameplate requirement) and the connector pressure drop must be equal to or less than the gas supply pressure for the appliance to operate at maximum performance. 

How do I select the connector with the correct pressure drop?

Flow rates provided in BTU flow capacity charts are determined at ½” water column (WC) pressure drop.  When using 0.2” water column pressure drop, capacity can be determined by multiplying the values in the BTU flow chart by 0.632. For capacities at conditions other than noted, contact Dormont.

What is PSI?

PSI is a unit of pressure measurement that means Pounds per Square Inch.

How many pounds per square inch (PSI) are approved for Dormont connectors?

Dormont connectors, and all other gas appliance connectors, are approved for use up to ½ psig maximum operating pressure.

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Will the coating chip off?

If chipping is a concern, Dormont recommends our hot-dipped PVC coated products such as ULTRA Flow® and The Blue Hose™ that feature a thick, resilient coating.  Like any hard-coated product, an occasional small chip can be expected if subject to impact.

What is coating made from?

Our coating is made from Polyester. There is no local code mandating a coating or coating material.

What is the advantage of buying these over any coated hoses?

Consistent coverage along the entire length of the connector with no over-spray into the inside of the tube which could introduce debris into the gas system.

Is coating the same as foodservice connectors? If not then why? This seems to be a good protector against cleaning fluids.

No.  Foodservice connectors use a hot-dipped PVC coating with a patent-pending anti-microbial agent.  Dormont’s Blue Hose™ is designed for Safety through Mobility™ which targets cleanliness and kitchen safety in commercial channels for moveable appliances.

Will cleaning solvents damage the hoses?

No.  SafetyShield® has been tested against common household chemicals in concentrated form.  Exposure to vapors and emersion did not compromise the integrity of the coating.

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The Dormont Blue Hose®

What other Products include an antimicrobial coating?

Antimicrobial additives have become common in many product categories. Some foodservice applications include meat slicers, knives, cutting boards, hand soaps, and racking in dishwashers among others.  Antimicrobial coatings and additives are also commonplace in household applications as well.  In fact, there are appliance manufacturers who are beginning to make product from antimicrobial coated stainless steel.

How long does the antimicrobial coating last?

The active agent is added to the coating in the manufacturing process and is integral to the coating.  This means that it does not wear off like paint would.  The antimicrobial protection will last for the life of the connector.

What is the active agent in the antimicrobial coating?

The active ingredient in the Dormont Antimicrobial protective coating is Zinc Pyrithione. It is an FDA-approved active ingredient.

What testing was done on the construction?

We have passed all agency requirements, performed laboratory life testing and performed field-testing for 5-6 months in the Pittsburgh area prior to launch.

What is the maximum working temperature for a hose with Stress Guard® Technology & Antimicrobial Coating?

The hose is designed to handle the high temperatures encounter in commercial cooking applications and has been CSA tested to 400°F (204°C).

What is the service life of the ‘new’ hose?

Hoses with Stress Guard® Technology are designed to last for the life of the commercial equipment they serve and are backed by a limited-lifetime warranty.  Most commercial cooking equipment is designed for a 5-8 year service life.  Please note that once the equipment is taken out of service, CSA Gas Connector Safety Regulations do not allow the reuse of gas connectors.

How does the Stress Guard® Technology differ from the ‘flared’ design?

In the earlier flare design the flare-to-pipe adapter was used to connect the hose ends to the gas supply and the gas equipment piping. Now, with the Stress Guard® Technology, the extra adapters on each end are no longer needed and the 360° integral swivel makes installation even easier.  The hose is the same high-quality Dormont construction with 304 stainless steel tubing. The Stress Guard® design is also a male-by-male connection.

Why Male x Male connection?

Every connection port (SnapFast®, Ball Valve, Safety Quik®, Swivel MAX®, Supply line) terminates into a female port.

Do the O-rings in Stress Guard® Technology degrade over time?

From the testing that we have done, we have simulated over 10 years of service life at 250°F (121°C) with no adverse effect on performance.  There is no quantifiable degradation in the O-rings.

Why isn’t Stress Guard® on the Stationary products?

Dealers told us that they needed to create a larger difference between the ‘Blue Hose’ and the stationary hose in order to give end-users a reason to “step-up” into the moveable Blue Hose.  This helps accomplish that goal.  As a result, the connection of stationary hoses will remain a male by female, flared connection.

Is the Dormont Blue® Hose made in the USA?

Dormont’s Blue Hose® with Stress Guard® Technology and antimicrobial coating, is manufactured in the USA. We produce these high quality products in our state-of-the-art factory located in Export, PA, just east of Pittsburgh.

How do I choose the right diameter?

The inside diameter of the gas connector should match the gas inlet (stub-out) on the back of the equipment (½”, ¾”, 1”, 1¼”) and the gas connector MUST deliver the BTU requirement needed to operate the appliance at its peak efficiency.

How do I choose the right length gas connector?

The correct connector length, once installed, will allow the appliance to be moved from the wall for adequate cleaning, servicing or installation access. The standard, ANSI Z21.24, permits connectors up to 72 inches in length.

What is the most popular size gas connector for the foodservice industry?

The most popular size gas connector for the commercial kitchen is ¾” diameter and 48” long. Most commercial cooking equipment is 36” deep and the extra 12” gives adequate room to access the space behind the appliance for cleaning or servicing.

How do I select the gas connector that will perform best with my appliance?

For an appliance to operate at its peak performance it needs to have ample fuel. The fuel rating is indicated in BTU’s necessary to operate the equipment. To select the correct gas connector for your appliance, verify the diameter of the gas inlet on the back of the appliance and the BTU requirements of the appliance. Check the Dormont gas connector BTU chart to verify that the gas connector you select provides the required BTU’s for the appliance.  If you select a gas connector that is too small or does not provide the BTU requirements of the appliance, you will “starve” the equipment. It will heat, but at a slower rate and may never achieve its maximum operating temperature.

What is the advantage to putting an appliance on casters?

Casters allow the appliance to be easily moved for cleaning, servicing and/or relocating.  When used in conjunction with a design certified moveable gas connector, the appliance can be quickly and easily removed from its normal operating position. Gas equipment mounted on casters must utilize a design certified quick disconnect gas connector – incorporating a braided, stainless steel gas connector and quick disconnect coupling.

Why is a restraining cable required?

A restraining cable connects the moveable gas appliance to the wall.  It is designed to be shorter than the gas connector used on the same piece of equipment.  The cable prevents any excessive force from being applied to the gas connector when the appliance is first moved away from the wall.

What is a thermal shut-off?

The thermal shut-off is a component within a quick-disconnect that is designed to melt in the event of a fire.  When it melts at a high temperature, the quick disconnect closes and shuts-off the gas supply.

What are the applicable standards for Dormont exclusive gas connection fittings?

The applicable standard for moveable gas connector installations is ANSI Z21.69 titled "CONNECTORS FOR MOVEABLE GAS APPLIANCES".  The applicable standard for the Snapfast® QD device is ANSI Z21.41 titled "QUICK-DISCONNECT DEVICES FOR USE WITH GAS FUEL".  Safety Quik’s® are certified to ANSI Z21.15, ANSI Z21.41, and AGA #7-90  Swivel MAX’s®  are certified to UL567.

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Swivel Max®

What is it made from and where is it made?

Swivel MAX® is manufactured from high-grade blue anodized aluminum in the United States.

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Countertop Gas Connector

What is the Dormont Countertop gas connector?

The Dormont Countertop Gas Connector is specifically designed to convey natural or LP gas to appliances that are located on a counter top, appliance stand or cart.

Why was the Dormont Countertop gas connector designed and introduced?

In 2005 when the codes changed (ANSI Z21.69/CSA 6.16), Dormont realized that in many applications where a countertop appliance was being installed, a residential grade connector was being used.  The Countertop Gas Connector was specifically developed to supply the correct amount of gas required by these appliances, while keeping our customer’s kitchens safe and in compliance with the new code.

What are the product features?

The Countertop Gas Connector is a corrugated stainless steel gas hose that is wrapped with a flexible stainless steel braid.  This braid provides protection against stretching of the connector when the appliance is moved.  The connector is coated with yellow antimicrobial PVC that inhibits the growth of bacteria, mold or mildew.  Included with these connectors are high quality flare fittings that create a metal to metal seal to ensure integrity in critical applications.

What are the BTU capacities of the Countertop Connecter?

The Countertop Gas Connectors will convey gas flow up to 150,000 BTU’s and L/P up to 240,000 BTU’s.

What are the benefits?

The Countertop Gas Connector meets the standard (ANSI Z21.69/ CSA 6.16), and these high quality gas connectors meet the flow demands of Countertop units to ensure optimal operation of the equipment they connect.  They are designed to withstand the rigors of commercial kitchens.  These connectors are a flexible, easy to install alternative to hard pipe.

What sizes are available?

The Countertop Gas Connector is a ½” I.D. gas hose that is available in 24” and 36” lengths.

Should a restraining cable be used with the Countertop Gas Connector?

If using the Countertop Gas Connector on an appliance that is moved, a restraining cable should be installed.

How does this product differ from the Blue Hose®?

The Countertop Gas Connector differs from the Blue Hose® in that it does not include Stress Guard® Technology.  With this technology the Blue Hose is able to withstand the rigors of movement that is put upon the connector when these large pieces of equipment are being moved.  The Countertop connector is designed to withstand the occasional movement of smaller countertop units.

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Foodservice Regulator

How does a regulator work?

Regulators reduce the pressure from a supply pressure to some other desired operating pressure.  They do this independent of supply pressure and flow.  So whether a gas range is on low or on high, the pressure on the outlet side of the regulator will be the same.

Why and when do I need to use a regulator?

Gas is supplied to a home or building at pressures from ½ to 5 psi.  Most appliances operate at much lower pressures, normally between 5 to 12 inches of water column.  A regulator is required before all gas appliances to reduce the supply pressure to the operating pressure of the appliance.

How can you tell if the regulator is for natural or propane gas? What are the differences?

Natural gas and propane regulators are the same on the outside.  The only way to identify each type is by the Dormont part number.  The first letter, following the series number, designates the type of gas.  N is for natural gas and P is for propane.  The actual difference is in the spring setting.  Propane requires a regulator with a higher spring force.

What is the difference between adjustable and convertible regulators?

Whether the term adjustable or convertible is used, the terms refer to controlling the outlet pressure of the regulator.  Adjustable regulators can be set to any outlet pressure within the specified operating range.  Convertible regulators offer two choices of outlet pressures.

Are adjustable regulators available?

All of the Dormont regulators are adjustable.

What are convertible regulators?

Convertible regulators allow the operator a quick change between LP and natural gas if necessary.

Please explain the spring adjustment?

Spring adjustment is how the outlet pressure of adjustable regulators is changed.  Each type of spring provides a unique outlet pressure range.

Can I set the spring myself or do I need to order it with the spring already set?

If the specified outlet pressure range includes the desired outlet pressure, the spring can be adjusted to provide the required outlet pressure.  A new spring is needed only if the desired pressure is outside of the specified outlet pressure range.

How can outlet pressures of adjustable regulators be changed?

The outlet pressures of the adjustable regulators can be changed by removing the stem cap and adjusting the screw found inside.  Turning the screw counter clockwise reduces the outlet pressure and turning it clockwise increases the outlet pressure.

WARNING:  Adjusting the outlet pressure should only be done while monitoring the pressure with a manometer or other type of pressure gauge.  Replace the stem cap when the adjustment is complete.

How can convertible regulators be changed from natural gas to LP, or vice versa?

Remove the cap of the regulator and look for the round pin inserted in the bottom side of the cap.  This pin should be installed with the larger round disk towards cap for natural gas operation and away from the cap for LP operation.  This disk is used to compress the inner spring for LP applications.  If the desired gas is different than the current setting, pull the pin out of the cap and insert the other end into the same hole in the cap.  Finally, replace the cap on the top of the regulator and verify the correct outlet pressure.

What pressure are these good for – ½ lb., 2 PSI??

Dormont offers regulators for ½ through 2 psi applications.  It is important to note that these pressures refer to inlet (supply) pressures.

The R48 Series is specially designed for up to ½ psi installations.  This regulator is available with either ½” NPT or ¾” NPT connections.

The R325 and R625 regulators can both be used in up to 2 psi applications.  The R325 regulator is intended for ½” piping systems and the R625 is used on ¾” systems.

When do I need an “R48” regulator and when do I need a “R325” or “R625” regulator. What is the difference between them?

R48 regulators are used where low inlet pressure is present and low flow capacities are required.  Typically these regulators supply only one appliance. 

The R325 and R625 regulators are generally used in high inlet pressure and high flow applications.  They can supply more than one appliance.  In low-pressure applications where R48’s do not meet the flow requirements, the R325 or R625 could be used.

How do I know what size I need?

The first step is to identify the supply pressure, the required outlet pressure, the required flow capacity and the pipe size.  Next, choose a Dormont regulator based on the supply pressure, outlet pressure, and the pipe size.  Finally, verify the flow capacity is acceptable.  If the flow capacity is not acceptable, try a larger regulator.  Flow capacities, ranked from lowest to highest, are R48, R325, and R625.

What are vent limiters?

During normal operating conditions, vent limiters allow air to be drawn in and pushed out of the regulator as the diaphragm cycles due to outlet pressure changes.  In the event of a diaphragm failure, the vent limiter restricts the leakage of gas to a low level.

Are vent limiters available?

Dormont regulators use two types of vent limiting methods.  The R48 Series has a vent limiter built into the cover of the regulator.  The red dust cap, seen from the outside, protects this orifice from dirt and other contamination.

The R325 and R625 Regulators use a ball check vent limiting system.  This method uses a ball check valve that allows air to enter and exit the regulator quickly.  If the diaphragm fails, the ball check valve closes and the gas is routed through an orifice built into the ball check limiter.  This device is the hex-shaped cap on the top of the regulator cover.  It is used in applications that require the regulator to cycle frequently.

How can I tell what the water column is that I need?

The appliance manufacturers will specify the operating pressure range of the appliance.  Select the regulator based on this pressure.  If a preset regulator is not available, an adjustable regulator with the correct pressure range can be set to provide the required outlet pressure.

Are Dormont regulators CSA approved?

All Dormont regulators are CSA approved.

Where is the regulator attached?

The regulator is mounted in the gas line upstream of any appliance.  Both the inlet and the outlet of the regulator contain female pipe threads that allow them to be easily installed in the gas line.

How will I know the regulator has failed in the open position?

The flame of the appliance will be dramatically higher than normal due to the increased pressure.  If this is noticed, turn off the appliance immediately.

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EZ Quick™

Why should I buy this product over current standard water line kits?

The EZ Quick™ Water Line Installation Kits are the first of their kind, an easy to install alternative to standard methods of installation.  They provide the added security of the integral shut off valve that provides a leak free shut-off, and saves on costly labor intensive installations.

What is the fundamental difference between your installation kits and standard saddle or piercing valves?

With the EZ Quick™ quick-connect valve there is no piercing of the supply line necessary, the valve requires at most 2 simple cuts.  Then, the supply piping is simply pressed into the quick-connect fittings.

What is a saddle or piercing valve?

The most common type of piercing valve is made up of two components that clamp around a water supply line. One piece is merely a clamping component to provide a tight seal against the water supply line. The second component contains the piercing element, and a gasket liner to facilitate a seal when the tubing is pierced. The two components are tightened onto the supply line- usually through a set of machine screws. Once tightened in place, the valve handle is used to drive the piercing element into the supply line. Once the pipe is pierced, water flow is initiated by backing off the valve/piercing stem.

Why do piercing valves tend to leak in use?

Common causes of leaking piercing valves include:

  • The supply line can be slightly deformed during penetration of the piercing element. This compromises the ability of the small piece of gasketing material to completely seal around the puncture.
  • Puncturing the pipe can make it more susceptible to corrosion- reducing the effectiveness of the sealing gasket.
  • In general, the components of a saddle valve tend not to be rugged/durable and can be damaged during installation and operation.

Why do piercing valves fail to stop the water flow when closed- as would be needed for removal/repair of an appliance?

In order to completely shut the supply of water to the appliance, a piercing valve depends on a seal between the piercing element and the walls of the copper supply pipe. This is like expecting a nail, driven through a water line, removed and then reinserted in the hole to reseal the pipe. As you would expect, this seldom provides an effective seal. As such, water can flow around the piercing element and through the output line from the valve. This is a very common problem with piercing valves.

How do the EZ Quick Quick-Connect fittings work?

The EZ Quick™ Quick-Connect fittings use a series of teeth to grab the outside diameter of the pipe.  An O-ring is used to provide the liquid seal on the outside diameter of the pipe.

Will the EZ Quick Quick-Connect valve work on different types of copper pipe?

Yes, all copper tubing that is the correct CTS (copper tube size) will work regardless of wall thickness.

Can the EZ Quick Quick-Connect valve be used with non-metallic pipe?

Yes, PEX or CPVC pipe that is the correct CTS (copper tube size) will work.

Can the EZ Quick Quick-Connect fittings be disconnected?

Yes, with water pressure removed from the line, the collet that extends from each tubing connector on the valve body can be pushed in and the tubing/pipe pulled to be removed.

What is PEX tubing?

PEX tubing is a type of polyethylene.  PEX contains cross-link bonds which are introduced into the polymer structure making the tubing more durable and semi rigid.

What are the advantages to PEX tubing?

PEX tubing is more kink resistant than copper and is stronger than regular polyethylene or CPVC tubing.

If I don’t need all of the PEX supply tubing provided, can I cut it to length?

Yes, as long as a clean square cut is made.  The quick-connect fittings rely on a clean square tubing end with no damage to the outside surface to seal correctly.

What are the small clips in the kit used for?

The included collet clips are installed to the three ¼” collet connections.  These clips provide an extra measure of security preventing the ¼” line from being accidentally disengaged once installed.  One of each of the clips is used in the following locations: attached behind the ¼” collet on the supply valve, and on both ends of the ¼” union.

What are the primary applications for these kits?

These kits are designed to fill the requirements for any appliance that requires a ¼” inlet water supply.  This includes but is not limited to the following appliances: ice machines, refrigerators (water and ice), under cabinet water filters, humidifiers and evaporative coolers (if protected from the elements).

I need a water line kit that works outdoors; can this kit be used in this manner?

Yes, the kit can be used for exterior applications provided the parts are protected from UV light.  The components require a protective wrapping to guard against potentially harmful UV rays from the sun.

Can these kits be used in freezing temperatures?

As with most plumbing products, freezing temperatures may result in component failure due to expansion of water.  Therefore it is not recommended to use these kits under this condition.

Piercing valves tend to leak when shut off. Do the EZ Quick Quick-Connect valves have the same issue?

No, these quick-connect valves were designed in such a way that leaking will not be a concern.  The integral valve will shut off the water supply to the appliance for required servicing or replacement.

Do these kits flow as much water as a saddle valve type kit?

These kits flow more water, 30% to 50% greater than that of a saddle valve kit due to the low restriction design of the quick-connect valve.

If my appliance has a ¼” tube attached and it ends with a compression nut captured on the end, how do I connect with these kits?

Simply remove the captured nut by cutting the tubing then use the included quick-connect ¼” union.  Remember: The quick-connect fittings rely on a clean square tubing end with no damage to the outside surface to seal correctly.

What is the correct installation orientation for the valve assembly?

Even though the valve can be oriented in either a vertical or horizontal position, it is recommended that the valve be oriented in a vertical position to limit the possibility of debris gathering in the valve that can create potential water flow obstruction.

Has Quick-Connect technology been used in plumbing applications previously?

Yes, quick-connect technology has been used for many years in many different types of standard plumbing applications. Companies offer couplings, tees, elbows and valves to simplify these installations.  The new Dormont EZ Quick™ Water Line Kits expand the use of these quick-connect fittings by creating the first of its kind to supply water fed appliances.

Does this product have any limitations?

The product can be compromised if contacted by any volatile organic compound (VOCs) or caustic chemicals. This would include but is not limited to liquid thread sealant, leak check compounds, bug sprays, lubricants, cleaners, paints, bleaches, acids, solder fluxes, plastic piping primers and cements, oxidizing agents, alkaline solutions, thinners, fuels, oil based caulk, hydrocarbons, spray foam or foaming agents (insulation).

Are internal tubing supports (metal sleeves) required to use the Quick-Connect technology?

No.  When correctly-sized Copper, PEX, or CPVC pipe is used, internal tubing supports are not needed.

Have your water line installation kits been tested by NSF?

Yes, all of our kits and the individual tee valves have been tested by NSF and are certified to NSF/ANSI Standard 61.

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Quality Systems

What is ISO 9001:2008?

ISO 9001:2008 is an international standard developed by the International Standards Organization (ISO) that recommends guidelines essential for optimizing business processes in a consistent, efficient, and organized manner.  This allows Dormont to consistently make quality products and perform quality services.  This standard encompasses all aspects of our business, from manufacturing to office functions such as sales, customer service, marketing and accounting.  It also provides a feedback loop for continuous improvement. 

What does it mean to be "ISO 9001:2008" registered?

It means that our quality business processes meet or exceed the guidelines of ISO 9001:2008 as demonstrated by ongoing independent audits.

Is Dormont Manufacturing Company an ISO 9001:2008 Registered Firm?

Yes. Dormont first earned ISO 9002 registration in 1993. Dormont has been re-certified every year since.  In 1996, our registration was upgraded to ISO 9001.  Our current registration status is, ISO 9001:2008.

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Design Certification

What does design certification mean?

Gas connectors are design certified, meaning that a product design has been proven to meet the requirements of a specific industry standard (such as CSA).  A recognized testing agency conducts the required tests and inspections required for design certification.   CSA International provides the design certification for Dormont’s gas connection products.

Are Dormont Safety System™ gas connectors design certified?

Yes.  CSA International design-certifies the entire line of Dormont gas products.

Do any Dormont products carry NSF approval?

Dormont Foodservice gas connectors are approved under NSF/ANSI Standard 61 for cleanability in non-food zone applications.  These are gas connectors with a heavy-duty, antimicrobial PVC coating.

What are commonly used terms for appliance installations?

Gas appliances are often classified in two distinct categories – “stationary” and “movable”. These distinctions are used to properly select the type of gas connector for the application. 

What is a stationary appliance?

A “stationary” appliance is moved infrequently after installation. This typically refers to a gas range, dryer (residential) or commercial gas equipment that is on straight legs. These appliances are almost always installed with a flexible gas appliance connector.

What is a “fixed” appliance?

A “fixed” appliance is not moved after it is installed. This typically refers to a gas furnace, water heater or boiler.  A fixed appliance is installed with black iron pipe (with a drip leg) and sometimes with a residential gas connector for the last short connection.

What is a movable appliance?

A “movable” appliance is moved frequently during normal operation for cleaning and servicing. This commonly refers to commercial gas cooking equipment that is mounted on casters (wheels) for easy cleaning. Movable commercial cooking installations must use a movable gas appliance connector that is produced to the requirements of ANSI Z21.69.

How are these different connectors identifiable?

  • Stationary Foodservice appliance connectors are braided with yellow PVC coated.  For residential applications (ranges, dryers, etc.), connectors are available without coating, with a yellow or black epoxy coating or with a gray PVC coating.
  • Movable appliance connectors with Stress Guard® technology have a blue PVC antimicrobial coating.
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Product Standards

What is a Product Standard?

A product standard is a set of requirements for specific products, such as gas-fired cooking equipment and gas accessories (gas connectors, regulators and valves).  These standards are developed by committees of industry professionals under the support of organizations such as the American National Standards Institute (ANSI).  Product standards are reviewed and updated on a regular basis.  They address the design and operating performance requirements of the specific products.  Some standards may also include requirements regarding a manufacturer’s quality system, such as ISO 9000 certification.  They also may include requirements relating to installation and operating instructions.

Who is ANSI?

The American National Standards Institute, Inc. (, or ANSI, is a nationally recognized coordinator of voluntary standards development in the U.S.
through which voluntary organizations, representing virtually every technical discipline and every facet of trade and commerce, organized labor and consumer interests, established and improve the some 8500 consensus standards currently approved as American National Standards. 

Who is CSA?

The Canadian Standards Association (, or CSA, is a not-for-profit, independent, private sector organization that serves the public, Governments and businesses as a forum for national consensus in the development of standards, and offers them certification, testing and related service. The more than 1000 standards published by CSA are written, reviewed and revised by over 7000 committee members. CSA also offers certification, testing and related services. (CSA is now the certifying authority instead of AGA/CGA.) 

Who is NSF?

NSF International (, is a non-profit organization dedicated to public health, safety and protection of the environment by developing standards, providing education and third-party conformity assessment service while representing the interest of all stockholders (manufacturers, regulators, customers).

Who is UL?

Underwriters Laboratories, Inc. ( is an organization established to maintain and operate laboratories for the examination and testing of devices, systems and materials to determine their relation to hazards to life and property and to ascertain, define and publish standards, classifications and specifications for materials, devices, products, equipment, constructions, methods and systems affecting such hazards. 

Who is BSI?

British Standards Institution (, or BSI, is an independent agency that manages the standards development process in the United Kingdom (similar to ANSI). BSI presents the UK view on standards in Europe and at the international level.

BSI also conducts independent product testing (Kitemark Certification) and ISO 9000 quality system registration. The Kitemark is awarded to products following successful examination and testing of the product‘s conformity with an appropriate standard. British, European or International standards may be used. A satisfactory assessment of the production control procedures used to maintain consistent product quality is also required. 

What is Dormont Manufacturing’s role on Standards Committees?

Dormont volunteers as a member of the ANSI Z21/CSA Joint Technical Advisor Group (TAG) for Gas Appliance Connectors, Manual Valves and Food Service Equipment.  Committee members work to define the requirements for safe performance  of gas appliance connectors and gas accessory devices. 

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Installation Codes

What is a Model Building Code?

A Model Building Code is a set of definitions, rules and guidelines that govern the construction of a building – including a commercial kitchen.  These often included detailed information about gas plumbing and electrical installations, including both infrastructure requirements (i.e. gas piping, sizing, valves) and specifications regarding the installation of specific gas appliances.  Since there are many different types of products included in a building, the Model Building Codes reference “Product Standards”.

What are the most common Model Building Codes?

  • National Fuel Gas Code ANSI Z233.1/NFPA 54 (National Fire Protection Association)
  • International Fuel Gas Code (IFGC – ICC)
  • Uniform Plumbing Code (UPC – IAPMO)
  • Uniform Mechanical Code (UMC – IAPMO)
  • CAN/ CSA-B149.1 - Natural Gas and Propane Installation Code (Canada)

How are gas appliance connectors addressed in these Model Building Codes?

Each of these installation codes includes a section that addresses the installation of flexible gas appliance connectors and accessory devices such as valves, quick-disconnects and gas convenience outlets.  The codes require that the gas appliance connector and accessory devices are listed or certified to the appropriate product standard. 

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