Application range of forged steel check valve:
Forged steel check valves have three body cap connection design forms. The first type is bolted bonnet: a valve designed according to this design form, the valve body and bonnet are connected with bolts and nuts, and the spiral wound gasket (made of 316 flexible graphite) is sealed. Metal ring connection can also be used when customers have special requirements. The second design form is a welded bonnet. According to this design form, the valve body and the bonnet are screwed together and are fully welded and sealed. If customers have special requirements, penetration welding can also be used. The third type is the pressure self-tightening bonnet. The valve designed according to this design form has a threaded connection between the valve body and the bonnet, and the internal pressure is sealed by a self-tight ring.
Forged steel check valve standard material list
Part Name | CStoASTM | AStoASTM | SStoASTM | |
A105 | F22 | F304(L) | F316(L) | |
Valve body | A105 | A182F22 | A182F304(L) | A182F316(L) |
Disc | A276420 | A276304 | A276304(L) | A276316(L) |
Sealing nut | 316 clip flexible graphite | 316夹PTFE | ||
Sealing ring | A105 | A182F22 | A182F304(L) | A193 B8(M) |
Fixing nut | SS | |||
Lifting bolt | A193B7 | A193B16 | A193B8(M) | A193B8(M) |
Applicable medium | Water, steam, oil, etc. | Water, steam, oil, etc. | Nitric acid, acetic acid, etc. | |
proper temperature | —29℃~425℃ | —29℃~550℃ | —29℃~200℃ |
Note: Other materials required by customers can also be used. The matching of sealing surface materials is determined by the internal part code designated by the customer. CS=carbon steel; AS=alloy steel; SS=stainless steel;
Stable Operation / Thick Valve Body / Reliable Quality
Low noise and stable
Energy-saving energy
Running smoothly
Not easy to rust
Low failure rate
Machinery Seal
Ingenuity Craftsmanship, Excellent Quality, Years Of Experience
Not easy to burst, good sealing, not easy to leak
Nearly 20 years of experience in the valve industry, reliable quality
Smooth and beautiful surface, stable structure
Strong connection, not easy to loosen
OIL
CHEMICAL INDUSTRY
METALLURGY
MECHANICAL
ELECTRICITY
WATER SUPPLY
Wenzhou Weinaite Valve CO.,LTD
Address: No.9,Xingchao Road,Road,3,Avenue,Binhai District.Wenzhou City,Zhejiang Province
Tel: 86-0577-55889965
Fax: 86-0577-86825598
E-mail: 694343480@qq.com
Mobile phone:18858727727
Mobile Website