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Seat Damage in Ball Valve 2010-11-19
Ball valves fail because the seat "extrudes" when we close the valve on 150# saturated steam service. When closing the valve, the ball lip graps part of the seat and deforms seat, not letting valve c
low pressure (50 psi) rupture disk 2010-11-18
In a pressure relief with a set point at 50 psig and I was looking at using a rupture disk as an alternative to a spring seated design.
Lime Valve Sleeve Material 2010-11-18
I have a 25mm (1") pinch valve on a lime slurry (milk of lime) pnematically actuated with a full-on, full-off operation.
Large Bore Excess Flow Valve 2010-11-18
I am trying to locate a manufacturer(s) of excess flow falves for hazardous liquid service. The valves we currently are using are 3" 300#RF flanged valves manufactured by Guardian.
Rising stem ball valve substitute 2010-11-18
Rising stem ball valves for some applications. These are hard to come by and only manufactured by a very, very limited number of companies.
Tolerance For Straddling Centerline 2010-11-18
We have a 3 piece ball valve 48" Class 300. Noticed that when bolted together the straddle of the centerline is about 1/2degree off.
Equalize Pressure for 18" Ball Valve 2010-11-17
18” Metaltite ball valve (full-bore, fail-close), from KTM, cannot be operated (cannot command to open), even though the equalize valve was already opened and the differential pressure across the val
Fire Safe Ball Valves 2010-11-17
"Fire Safe" ball valve, particularly in accordance with API 607. My understanding is that the construction of the valve seat has both a resilient component for better sealing,
