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The valve is described as follows; could someone please explain what it means?

2017-05-09View Original

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{3/4"} VGU4S3, Gate Valve VGU4S3 GATE VALVE CL800 SW SS A182-F304 BODY W/304SS TRIM STLD B OR DST OSY-BB EXTEND BONNET (LT-101)
Reply #22017-05-09
I’m also a beginner; after searching through various sources, I’m sharing my imperfect translations in the hope that my colleagues can offer their feedback. Gate valve VGU4S3, class 800, welded by socket welding; material is A182-F304. The internal components of the valve (the valve disc) are made of SS304. The TRIM STLDB element also uses SS304 as its material, and the valve cap has the same material as the valve disc.
Reply #32017-05-09
OSY-BB refers to Bolted Bonnet - Outside Screw-Yoke, that is, a valve cover connected by bolts with a stem-mounted support
Reply #42017-05-09
OSY-BB refers to Bolted Bonnet - Outside Screw-Yoke, that is, a valve cover connected by bolts with a stem-mounted support

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