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GB Series
High Performance
Description:
- Bolted bonnet; outside screw and yoke; rising stems; metallic seating surfaces.
- The body and bonnet of Class 150 - Class 900 valves are usually with studs and nuts.
- The body and bonnet of Class 1500 - Class 2500 valves are usually of a pressure seal design.
Technical characteristics
Size:
2” – 12”
Design and manufacture:
BS 1873 and ASME B16.34
End flange dimension:
ASME B16.5
BW end dimension:
ASME B16.25
Face to face and end to end dimension:
ASME B16.10
Pressure - temperature rating:
ASME B16.34
STANDARDS
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Test Inspection: API 598
