i'm back with another question after receiving very good replies previously .i don't seea difference with stop globe and stop check valve ,design wise .is there a difference ?tieir consructions are very similar,when the stem is retracted in a stop check,the shaft is not connected to plug ;threrfore ,leaving the foating plug to perform as a check valve .eith the globe ,however ,the plug is pulled offthe seat when the stem is retracted ... or another way to look at it, is to start at a globe check valve. The globe in a globe check valve is guided and usually also spring loaded to open freely at a certain small overpressure in flow direction to overcome weight of globe and spring force in addition to the (return) after pressure.To make a stop globe valve from this startpoint you have to add the usually threaded spindle to force the valve open if closed and force the valve open if closed.The difference from a normal stop globe valve is the ability of the globe to freely move open and close as a check valve if not locked by the spindle in closed position.The attachment and griping between stem and globe will have to differ from a normal stop valve, in addition to (usually) additional spring and guiding arrangment for the globe.Suppliers that both have globe valves and 'closeable / lockable globe check valves and globe check valves, will try to use as many equal parts as possible for the three variations, where housing is the most obvios common factor.

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