COOSAI valve group
World-Largest Top Entry Ball Valve Manufacturer
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Forging Steel NPT & SW End Globe Valve
1. Self-centered pressure plate and sleeve type;
2. Valve disc may be changed to throttling type, needle type, ball type and check type.
3. Full bore or reducing bore；
4. One-piece upper sealing seat;
5. Bolted connection, spiral wound gasket sealed bonnet, threaded connection, all welded sealed bonnet, and threaded connection with inside pressure self- tightened bonnet;
6. Outside screw and yoke (OS&Y)
Coosai Forged steel globe valves are provided with three types of bonnet design. Firstly bolted bonnet, with valve body and bonnet bolted, spiral wound gasket (made of 304 with flexible graphite) or sealed by metal ring junction. Secondly, welded bonnet, with the body and bonnet threaded, all welded seal. Full penetration welded connection may apply in case of customer's special request. Thirdly, pressure self- tightening bonnet, with the body and bonnet threaded, sealed by inside pressure self- tightening ring.
Application Sheet:
1. Dimensions of Connection End :
1) Socket dimensions to ANSIB16.11;
2) Thread end dimensions to ANSI B1.20.1;
3) Butt-weld end dimensions to ANSIB16.25;
4) Flange end dimensions to ANSIB16.5.
2. Design and manufacture: API 602
3. Structural Features:
Bolted bonnet (B.B) and outside screw and yoke (OS&Y)or welded bonnet (W.B) and outsidescrew and yoke (OS&Y).
4. Valve check and test:API 598;
5. Material to the specifications of ANSI/ASTM.
6. Class: 800LB~2500LB
7. Size:1/2"~ 2"
