Product Explain ：
1)Production Enforce Standard
Flanged Dimension: PN1.0-PN1.6Mpa to GB4216, PN2.5Mpa to GB9113
Inspect and Test: JB/T9092, GB/T13927
Diaphragm Type: DN20~450mm
Piston Type: DN500~900mm
Pressure rating:PN1.0MPa PN1.6MPa PN2.5MPa
Suitable temperature: ≤ 80 ℃
2) Materials:
Body/ Bonnet:Cast iron, Ductile Iron, Carbon Steel, Stainless Steel, Bronze
Compression Spring:Silicon Manganese Stee
Cylinder liner:Stainless Steel
Diaphragm clamping:Ductile Iron
Piston:Ductile Iron, Bronze
Diaphragm:NBR Rubber
O-ring:NBR Rubber
Stem:Stainless Steel
Disc:Ductile Iron, Bronze
Gasket :NBR Rubber
Gasket clamping:Ductile iron. Bronze
3) Purpose:
For the pipe network applications of industrial water supply, fire fighting and domestic water.
4) Advantages:
However the upper pressure changes, it always keeps the presetpressure. The range of pressure adjustment is big and the valve hasn't impingement of the water hammer and can replace the middle water box.
Main External and Connection Dimension Unit:mm