
A105 Welded Flange Forged Steel Vacuum Gate Valve
We have experienced R & D, supply chain and manufacturing teams engaged in the A494 CW6MC Ball Valve, 5A Butterfly Valve, Alloy20 Ball Valve field, carefully designed and developed with care to create fine products. In the future, our company will continue to strive to continuously innovate, provide more competitive products for customers and create greater value for users. We are proud to provide our customers with more advanced and reliable solutions and associated products, and we are constantly exploring new areas and take on increasing challenges.
Product Details
NSV BB Forged globe valves are designed and manufactured to provide maximum service life and dependability. Forged globe valves can be full port or reduced port as per requirements of customers. Valves are available in a complete range of body/bonnet materials and trims,
Because the stem opening or closing stroke of the globe valve is relatively short, and has very reliable cutting function, and because the change of the valve seat opening is in direct proportion to the stroke of the disc, it is very suitable for flow regulation. Therefore, this type of valve is very suitable for cutting or regulating and throttling use.
Design Features
Full port or reduced port design
General or needle disc
Bolted bonnet(B.B)
Flanged, butt-welded, socket- welded, or threaded ends
Optional Y structure

Standard Material Specifications
| NO. | Part Name | CS to ASTM | AS to ASTM | SS to ASTM | |
Type A105 | Type F22 | Type F304(L) | Type F316(L) | ||
1 | Body | A105 | A182 F22 | A182 F304(L) | A182 F316(L) |
2 | Disc | A276 420 | A276 304 | A276 304(L) | A276 316(L) |
3 | Stem | A182 F6 | A182 F304 | A182 F304(L) | A182 F316(L) |
4 | Gasket | Corrugated SS + graphite | SS + PTFE | ||
5 | Bonnet | A105 | A276 304 | A276 304(L) | A276 316(L) |
6 | Bonnet Bolt | A193 B7 | A193 B16 | A193 B8 | A193 B8M |
7 | Pin | A276 420 | A276 304 | ||
8 | Gland | A276 410 | A182 F304(L) | A182 F316(L) | |
9 | Gland Eyebolt | A193 B7 | A193 B16 | A193 B8 | A193 B8M |
10 | Gland Flange | A216 WCB | A351 CF8 | ||
11 | Gland Nut | A194 2H | A194 4 | A194 8 | A194 8M |
12 | Yoke Nut | A276 410 | |||
13 | H.W.Nut | A194 2H | A194 4 | A194 8 | A194 8M |
14 | Nameplate | SS | |||
15 | Handwheel | A197 | |||
16 | Stem Packing | Flexible Graphite | PTFE | ||
Suitable Medium | W.O.G.etc | W.O.G.etc | HNO3CH3OOH etc | ||
Sutiable Temperature | -29℃~425℃ | -29℃~550℃ | -29℃~550℃ | ||
Note: Other materials are available upon request. CS=Carbon Steel; AS=Alloy Steel; SS=Stainless Steel.
BODY-BONNET CONNECTION:BOLTED-BONNET
NSV Standard construction of boy-bonnet connection is bolted,with s apiral wound gasket to seal the connection.
On request we offer as well Ring Joint connection,Ring Joint that’s for high pressure on class 2500lb bolted bonnet,als on request on other

STRUCTURAL FEATURES
1. A compact but extremely sturdy design for high pressure-temperature service.
2. Available types:Stop,Stop check,Needle,Flow control.
3. Repairable 2-pieces stem drive.
4.Available with double packing,leak-off connection and live-loading.
FAQ
1. Q:Do you have customized valve?
A:Yes,we can supply customized valves.
2. Q:What’s the packing for shipping?
A:Its carton for small valves(sample) and plywood case(don’t to fumigate).
3. Q:Does your company have any agent/distributor with the exception of China?
A: At present,we have agent in Indonesia,Singapore,Canada,Mexico,Iraq,and welcome contact us if you would like to join us.
Our enterprise successfully attained IS9001 Certification and European CE Certification of A105 Welded Flange Forged Steel Vacuum Gate Valve. We are willing to provide users with high-quality, high-value-added equipment based on the philosophy of 'honesty and trustworthiness, mutual benefit, mutual development, and common development'. Our company adheres to the tenet of 'forge ahead and prosper', and will continue to serve new and old customers at home and abroad with first-class technology, products, and service. Welcome domestic and foreign customers to inquire and negotiate business.
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