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Actuation Torque Vs Pressure drop curve for BALL VALVE 2010-10-22
Industrial expert's opinion is maximum torque required to actuate ball valve is"Torque ability to open under large differential pressure and to close under high flow conditions ".
Ball Valve Pressure Loss 2010-10-22
At one time I had a table that listed flow coeficients versus percent open for Cameron ball valves but I can no longer find it.It seems to be a somewhat vague enquiry.
Hydropower ball valve - High Head, silty water 2010-10-22
With 700m head and 5cms flow (1000psi, 80,000gpm) and the water is fairly silty. The original was a trunion mounted ball valvetalking about an ANSI Class 600 equivalent valve (1440 psi rated pressure
12" Force Main-Ball Valve vs Gate Valve 2010-10-22
We have an office argument going about the use of ball valves versus gate valves on a sewer force main.
Cone/Ball Valve 2010-10-22
The size of this Ball Valve is 18" and it will be installed in a pump station. I have concern regarding how to control/set the emergency closing speed (seconds) and if it is really necessary.
OS&Y Valves NFPA requirement 2010-10-21
"A listed outside screw and yoke (OS&Y) gate valve shall be installed in the suction pipe. No valve other than a listed OS&Y valve shall be installed in the suction pipe within 50 ft (16 m) of the pum
Soft seat material 2010-10-21
Nylon, PTFE, RPTFE, Devlon & PEEK. Some sites will include many plastics that you should consider. You will find lots. Consider a few thoughts beyond the valve manufacturer.
Valve Seats 2010-10-21
Require a 6" 1500# ball valve the current datasheet specification gives the seat material as REINFORCED TEFLON(PTFE + 15% FIBER GLASS).
