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Forged steel flange swing check valve

Forged steel flange swing check valve

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Forged Steel Valve
Describe
Forged steel flange check valve product introduction:
 
Forged steel flange check valve disc and seat sealing surface are made of cobalt-based hard alloy plasma spray welding to form high hardness, erosion resistance and durability. It is suitable for cutting or turning on the medium in the pipelines of various working conditions such as petroleum, chemical, hydraulic and thermal power stations with nominal pressure pn1.6~42.0mpa working temperature 600°C. Suitable media are: water, oil, steam, and gas, some corrosive liquids, etc.
 
 
Forged steel flange check valve works:
 
Forged steel flange check valve disc and seat sealing surface are made of iron-based alloy or stellite cobalt-based hard alloy surfacing surface for wear resistance, high temperature resistance, corrosion resistance and scratch resistance. Long features. The stainless steel pin and the disc are connected by a built-in structure - excellent performance - more reliable sealing. The products are widely used in the pipelines of various working conditions such as petroleum, chemical, pharmaceutical and electric power industries to prevent backflow of medium. Suitable media are water, oil, steam, gas and some corrosive liquid media.
 
Forged steel flange check valve features:
 
1. The upper casing guide sleeve of the hardened alloy valve body on the guide rib is made of stainless steel to ensure the flexible operation of the valve flap.
 
2. The sealing surface of the valve disc and the valve seat is made of cobalt-based hard alloy plasma spray welding, which has high hardness, erosion resistance and durability.
 
3. Advanced pressure seal design and high purity graphite gasket ring to ensure high air tightness.
 
4. The valve cavity adopts a pressure self-tightening sealing structure. The higher the internal cavity pressure, the better the sealing performance.
 
5. The valve disc rotates around the pin shaft outside the valve seat to reduce the violent impact that occurs when the valve is closed.
 
Forged steel flange check valve 150lb-600lb
 
Forged steel flange check valve standard material list
 
Serial number Part Name cs to astm as to astm ss to astm
type a105n type f22 type f304(l) type f316(l)
1 Valve body a105n a182 f22 a182 f304(l) a182 f316(l)
2 Nameplate ss
3 Valve flap a276 420 a276 304 a276 304(l) a276 316(l)
4 cap a105n a182 f22 a182 f304(l) a182 f316(l)
5 Gasket 316Flexible graphite 316夹ptfe
6 bolt a193 b7 a193 b16 a193 b8(m) a193 b8(m)
Applicable medium Water, steam, oil, etc. Water, steam, oil, etc. Nitric acid, acetic acid, etc.
proper temperature -29°c~425°c -29°c~550°c -29°c~200°c