Stainless Steel Back Pressure ValvesMaterial: SS304, SS316Size: DN15, DN25, DN40Pressure: 0-3barsLGP back pressure valve is diaphragm type. The valve ... metering accuracy of metering pump is not affected.LGP back pressure valve can also be used as safety valve ... , just change the inlet and outlet direction.Stainless Steel Safety ValvesMaterial: SS304,SS316Size: DN15, DN25, DN40Pressure: ...