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VALVE TYPE SPECIFICATIONS/GEAR REQUIREMENT-ball,gate,globe,check,butterfly valve

VALVE TYPE SPECIFICATIONS

1 BALL VALVES
Ball valves shall be provided with the following:
• Lockable device (opened and closed).
• Blow-out proof stem.
• Split body design.
• Anti static device tested in accordance with ISO 17292 or API 6D as applicable.
• Trunnion mounted ball valves shall have a cavity relief seat.
• Suitable for bi-directional use.
• Ball shall be solid. Hollow ball is subject to MISC/MMHE approval.
• Ball position indicator.
Floating ball valves are acceptable up to 6” in class 150 and 300, 3” in class 600. Continue reading “VALVE TYPE SPECIFICATIONS/GEAR REQUIREMENT-ball,gate,globe,check,butterfly valve”

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Valve design requirement and Valve operator requirement for Ball,Gate,Globe,Check,Needle,Butterfly Valve-Project SGPK03

VALVE DESIGN REQUIREMENTS

8.1 Valves shall comply with the relevant standards and codes as specified herein and in the valve data sheets.

2 Ball Valves
All ball valves shall be of a fire tested design to BS6755 Pt 2, API 6FA or API 607,certified accordingly and fitted with fire safe seals.
Valves shall be of anti-static design with blow out proof stems.
The design of all ball valves shall incorporate body cavity pressure relief, which shall be achieved through seat design. A hole drilled in the ball to achieve body cavity relief is not acceptable.
Ball valves shall be reduced bore pattern, unless otherwise specified full bore on the individual data sheets. Reduced bores shall be limited to one line size smaller than body size.

Continue reading “Valve design requirement and Valve operator requirement for Ball,Gate,Globe,Check,Needle,Butterfly Valve-Project SGPK03”