The Complete Gas Valve Finder

Here at Honeywell Thermostat, we can answer your questions about virtually any thermostat.  We know thermostats can be confusing, so if you don't find the answer you are looking for or are still confused give us a call.

Check Out our Full Honeywell Gas Valve Line Here!

1. What is a gas valve?

A gas valve is a device that regulates gases such as natural gas and liquid propane. Used for several applications gas valves are available in a variety of sizes flows, inlet and outlet ports, and pressure ratings. One is made of plastic such as polyvinyl, polytetrafluoroethylene, chlorinated polyvinyl chloride, or a metallic substance such as brass, bronze, steel, iron, copper, or aluminum, to name a few. If you are on the market to replace your gas valve, be sure to have your type and model number ready to start narrowing down your options and making your final decision from our full selection or go straight to one of our universal Honeywell gas valves, the Honeywell VR8304 Gas Valve.

2. What are some types of gas valves?

Solenoid, electrically actuated ball, proportioning, elliptic, pinch, check, diaphragm, elliptic, metering, needle, plug, pressure relief, and stopcock are all types of valves with specialized characteristics to choose from. Valves come with different sealant materials as well. Some of these are NBR (Buna-N), EPDM (Ethylene Propylene), FKM (Viton), and PTFE (Teflon). NBR is the most common sealant and used for temperatures from 0 to 180 degrees Fahrenheit. EPDM is for hot and some fluid applications, in the temperature range of -10 to 300 degrees Fahrenheit. FKM is specifically for hydrocarbons such as gasoline and its temperature range is from -10 to 300 degrees Fahrenheit. PTFE is used for many temperature ranges as it is the most chemical resistant sealing material. Certain valves are specifically designed for an individual product or product line, so if a name is unrecognizable from what you have discovered from this information, this could be the type of valve you have come across.

3. How should I choose my gas valve?

First of all, you need to differentiate between your system type, liquid or gas, and match the necessary valve material. When pressurized gases are involved, it is necessary to use a metal valve. Teflon is appropriate for stronger, more corrosive chemicals. Next, decide between the pressure and flow rate your system will require. (Metal can handle higher pressure.) Also keep in mind that solenoid valves are best for continuous on/off cycling and ball valves are easiest to maintain. Finally, decide on a normally closed or normally open gas valve depending on how often you expect your valve to be in use. Some factors to also consider when choosing your gas valve are pipe size, orifice size, pressure and vacuum range.

4. What standards do I have to meet?

Terms to remember are the PSIG—maximum pressure and INHG—maximum vacuum. Maximum pressure indicates the amount of substance that can safely flow through the valve, but can also be affected by temperature or chemical makeup of the gas substance. Maximum vacuum indicates the top vacuum pressure that the valve is capable of operating, also affected by temperature or chemical makeup at times.

5. Any suggestions on a specific gas valve?

Because proper sizing is key when replacing your gas valve, paying attention to NPT, or National Pipe Thread ports, is the simplest way to go as then you will be eliminating the chances of error with your new Honeywell gas valve. Orifice size also is important as this indicates howch fluid is able to flow through the valve. Yet, for one of the easiest ways to go, we suggest trying a universal gas valve, where you can forget the chances of making a mistake in sizing or maximum pressure. We suggest one of Honeywell's universal gas valves such as the Honeywell VR8304 Gas Valve.

Check Out our Full Honeywell Gas Valve Line Here!