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Bellows Seal Gate & Globe Valve


Bonney Forge valves are available in two bonnet designs. The first design is the Bolted Bonnet, with male-female joint, and spiral wound gasket, made in F316L/graphite. Ring joint gasket are also available on request. The second design is the welded bonnet, with a threaded and sealed welded joint. On request a full penetration strength welded joint is available. Bellows sealed valves are available in all bellows seal gate valve or bellows seal globe valve design configurations.

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Product standards & features

Applicable standard range

SIZE 3/8 NPS - 2 NPS
CLASS 150 - 2500

Applicable standards

Design API 602, ASME B16.34, MSS SP-117
Inspection & testing API 598, MSS SP-117
Marking MSS SP-25, MSS SP-117
Fugitive emission API 624, ISO 15848, TA Luft

Applicable end finishes

Face to face ASME B16.10
Socket weld ASME B16.11
Screwed ends (NPT) ASME B1.20.1
Flanged ends ASME B16.5
Butt welding ends ASME B16.25

Product features

1 Standard construction of body-bonnet connections are bolted bonnet or welded bonnet type.
2 Flanged valves are provided with flanges integral with the body forgings.
3 Standard gasket design for bolted-bonnet valves is spiral wound type up to class ASME 1500. Ring Joint gaskets are standard for ASME 2500 and above. SPW/RJ are available on request for all pressure classes as option.
4 High quality packing ( API 622 ) for reliable tightness and low emission performance in fully compliance with API 624.
5 Outside Screw and Yoke (OS&Y).
6 Low operation torque design.
7 Self aligning two piece packing gland.
8 Seal welded bellows designed to isolate valve packing from potentially cautic gases.