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Silent check valve
Silent check valve, muffler check valve, silencer check valve HC42X(DRVZ)HC41X
describe：
The silent check valve is mainly composed of body, seat, guide fluid, disc, bearing and spring, etc. The inner flow passage is streamlined design, with minimal pressure loss, very short opening and closing stroke of disc, quick closing when pump stops, preventing huge water hammer sound, and has the characteristics of silent closing.
Design features：
Design criteria: BS1868, ASME B16.34, GB/T 12235, JB/T3595
There is only one sealing surface between the valve body plates
Seat sealing surface surfacing
Easy to produce and maintain
Flexible graphite filler
No leakage at the bonnet joint
Product Range：
Body material: carbon steel, stainless steel, alloy steel
Nominal diameter:1/2"～24"（DN15~DN600）
Pressure range:Class150～2500（PN10~PN420）
End connection: RF, RTJ, BW
Working temperature:-29℃～560℃
Operation: handwheel, gear box, electric, etc.
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