| 摘要 |
A valve structure comprising a swing-out body which is clamped between line flange connector plates by means of elongated studs with clamping nuts. Those studs which are located on, and on one side of, a diameter of the flow passages are provided with jacking nuts which may be tightened to engage the inside of the connector plates and separate them out of clamping engagement with the swing out body. A pair of hinge members welded to the swing out body have circular openings therein which rotatably receive bushings threadedably carried on one of the studs located on the aforementioned diameter. The studs without jacking nuts may be completely removed and the valve body may be pivoted out for internal inspection. Lateral slots in the hinge members permit removal of the valve body from the stud when the bushings are threaded back out of the circular openings in the hinges.
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