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Slab gate valve double block bleed.
Franklin valve manufactures the duraseal double block bleed plug valve.
Double block and bleed capability and automatic relief of excess body pressure are standard features of rays through conduit slab gate valves.
Through conduit double expanding gate valves are double block and bleed valves as they can grant zero leak towards the body cavity with pressure on the upstream and downstream side even when the valve is fully open.
High integrity double block bleed plug valve.
Product sheet how it works.
Valve associations usually choose to follow either api s or osha s definition but some have created their own handbook with their own definitions for industry terms.
Brochure valve solutions for pipelines any pipeline.
500 northpark central dr.
With the valve fully closed and pressure on both sides it is possible to bleed the pressure from the body cavity to check seat seal integrity and to achieve double isolation between the two sides and.
Through conduit double block and bleed slab gate valves with fully protected seat faces for long lasting drop tight shutoff in liquid pipelines.
The fabricated body allows for a wide selection of material choices.
Solid particles cannot penetrate into the body both when the valve is in the open or in the close position.
The floating slab gate uses the natural force of line pressure to obtain a dynamically tight downstream seal in high pressure differential applications.
The m j valve model m 303 is an advanced fabricated body design slab gate valve manufactured and tested to api 6d.
By combining two valves into one body a twin valve design reduces weight and potential leaks paths while meeting the osha requirements for double block and bleed.