Bellows Single-seat Control Valve can eliminate highly toxic, flammable, explosive, volatile and rare precious metal medium leakage hidden danger.
Product Descriptions:
Bellows single-seat control valve, based on single-seat non pressure balance structure on the basis of increase the bellows seal structure, compression elastic stainless steel bellows in bearing parts connected to the valve stem in together, and packing of double seal, eliminate medium leakage hidden trouble. Suitable for differential pressure is highly toxic, flammable, explosive, volatile and the adjustment of the rare and precious metal medium.
Technical Parameters:
Nominal Size | DN15 ~ DN300 |
Pressure Rating | PN16/25/40/63/100;CL150(PN20)/300(PN50)/600(PN110) |
Operateing Temperature | -46℃~ 350℃ |
Characteristics | Equal percentage, linear, quickly open |
Rangeability | 30:1、50:1、 100:1 |
Seat Leakage Class | ANSI B16.104: IV、V、VI |
Body Material | WCB/WCC/LCB/LCC;WC6/WC9;CF8/CF8M;4A/5A etc. |
Trim Material | 630/316/316+ST/316nitriding/316+Ni60/316+WC etc. |
Seal Material | PTFE+ graphite v-shaped packing, flexible graphite ring packing, graphite +PTFE braided packing etc. |
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