... steelDiaphragm: nitrile rubberExecutive StandardRefer to CJ274-2008 «Town gas pressure regulator»Character1 Big flow ability, high adjust ... s high pressure difference regulator for widely usedMedianatural gas, manufactured coal gas, LPG, air, Other non-corrosive gasRequirementThe ... pressure regulator, steel flange, Stop Valve, ball valve, Filter, insulating joint, regulator station etc. Our company was ...