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
Suitable temperature: ≤ 80 ℃
2)Materials:
Body/Bonnet:Cast Iron, Ductile Iron, Carbon Steel, Stainless Steel, Bronze
Compressive Spring:Silicon Manganese Steel
Diaphragm Clamping:Ductile Iron
Diaphragm:RBR Rubber
Stem:Stainless Steel
Disc:Ductile iron, Bronze
Gasket:NBR Rubber
Gasket Clamping:Ductile iron, Bronze
3)Purpose:
For the automatic water supply applications of water box, pool and water tower in the mining industry, enterprises and high buildings.
4)Advantages:
The valve keeps the water line of the water box by the adjustment of the ball pilot valve to prevent overfall or too large flow. The valve can be control to open and close and the main valve and the pilot valve can be separately installed.

Main External and Connection Dimension Unit:mm