
API Stainless Steel OS&Y Bb Gate Valve (Class 150/300/600)
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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 API Stainless Steel OS&Y Bb Gate Valve (Class 150/300/600) is rich and diverse, with high quality and low price, which meet the needs of different levels of market. We really have to care about our employees and our customers and consider the interests of the larger community before we make any decisions. Our company provide long-term excellent services to new and old users with an open mind, flexible business model and sincere and responsible attitude.
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