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API6A casting steel welding globe Valve
1.The code of driving type
Driving type | Code | Driving type | Code |
Electromagnetic drive | 0 | Bevel gear | 5 |
Electromagnetic and hydraulic | 1 | Pneumatic | 6 |
Electric and hydraulic | 2 | Hydraulic | 7 |
Worn wheel | 3 | Pneumatic and hydraulic | 8 |
Spur gear | 4 | Electric | 9 |
2.Code of connection form
Connection form | Internal thread | External thread | Flange | Welding | Butt clamp | Hoop | Ferrule |
Code | 1 | 2 | 4 | 6 | 7 | 8 | 9 |
3.Code of structural form of globe valve and throttle valve
Globe valve Throttle valve | Direct through type | Angle type | Direct flow type | Balance | |
Direct through type | Angle type | ||||
Code | 1 | 4 | 5 | 6 | 7 |
5.Code of materials for valve body
Materials for valve body | Code | Materials for valve body | Code | Materials for valve body | Code |
Gray iron | Z | Copper alloy | T | 1Cr18Ni9Ti | P |
Malleable cast iron | K | Carbon steel | C | 1Cr18Ni12Mo2Ti | R |
Ductile iron | Q | Cr5Mo | I | 12Cr1MoV | V |
Could supply other materials according to client’s requirements | |||||
6.Standards
Design and manufacture as BS1873,ANSI B16.34
Face to face dimension as ANSI B16.10
End flange dimension as ANSI B16.5
Pressure temperature rating as ANSI B16.34
Pressure test as API598
7.Test pressure
Test item | Shell test | Seal test | Back seal test | Air seal test | |||||
Medium | Water | Air | |||||||
Unit | MPa | Ibf/in2 | MPa | Ibf/in2 | MPa | Ibf/in2 | MPa | Ibf/in2 | |
Pressure (Class) | 150 | 3.1 | 450 | 2.2 | 315 | 2.2 | 315 | 0.5-0.7 | 60-100 |
300 | 7.8 | 1125 | 5.6 | 815 | 5.6 | 815 | |||
400 | 10.3 | 1500 | 7.6 | 1100 | 7.6 | 1100 | |||
600 | 15.3 | 2225 | 11.2 | 1630 | 11.2 | 1630 | |||
900 | 23.1 | 3350 | 16.8 | 2440 | 16.8 | 2440 | |||
1500 | 38.4 | 5575 | 28.1 | 4080 | 28.1 | 4080 | |||
8.Materials for main parts
Name | Material | ||||||||
Body Bonnet Wedge | A216 WCB | A352 LCB | A217 WC6 | A217 WC9 | A217 WC5 | A351 CF8 | A351 CF8M | A351 CF3 | A351 CF3M |
Stem | A182 F6 | A182 F304 | A182 F316 | A182 F304L | A182 F316L | ||||
Stem nut | ZcuAl10Fe3 Bronze | ||||||||
Handwheel | KTH350-10 | ||||||||
Bonnet bolt | A193-B7 A320-L7 A193-B8 | ||||||||
Nut | A194-2H A194-7 A194-8 | ||||||||
Could supply other materials according to client’s requirements | |||||||||