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
