... steelDiaphragm: nitrile rubberExecutive StandardRefer to CJ274-2008 «Town gas pressure regulator»Character1 Big flow ability, high adjust ... , It’s high pressure difference regulator for widely usedMedianatural gas, manufactured coal gas, LPG, air, Other non-corrosive ... gate station, District regulator station, industrial user, Gas supply systems for gas turbine etc. There must be a kind suits ...