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high-pressure valve butterfly valve 2010-12-02
Maryland will be the construction of high-pressure valve butterfly valve base With the development of the market, users of large butterfly and ball valve increasing demand,
Triple-Offset Butterfly Valves: Benefits at a glance 2010-12-02
Concentric valve (zero offset). Disc rotates around the centre axis allowing for a potential 360º rotation.
Cavitation in a Valve 2010-12-01
Design on a valve intended to feed/expand liquids (like NH3) from subcooled liquid state to saturated or mixed state.
Packing for 1300 °F Valve 2010-12-01
10" class 150 butterfly valve is in a service that operates at 1300 °F, has 14% oxygen, 7% SO2, and balance N2 in the process stream.
Applications of Concentric vs Eccentric-Disc Butterfly Valves 2010-12-01
Concentric butterfly valves are OK for utility service, these are soft seated or rubber lined valves. Generally disc is permanently in contact with seat.
vee-ball valves versus butterfly valves 2010-12-01
Apart from from COST, any there any reasons that vee-ball valves would not be acceptable or better than butterfly valves for process air lines in bioreactors on Wastewater Treatment Plants?
API 682 for rotary valves packing 2010-11-30
I was informed that API Std.682 states the specifications for the QUALIFICATION TEST on shaft sealing system for rotary and centrifugal pumps.
Closing torque for a butter fly valve 2010-11-30
First you should calculate the total torque adding the 3 torque values.1)Seal friction torque:- This depends on the Torque due to the friction between the Disc seal & the inner dia. of body.
