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50/50 Seats for Ball Valves
Posted by Gilbert Welsford on September 06, 2012
50/50 seats are generally used in ball valves for steam and other high temperature services, up to 500 degrees F at 200 psi. A 50/50 seat is actually 50% teflon and 50% stainless steel powder. Due to the hardness of the seat and the friction of the stainless steel powder against the ball, the torque needed to stroke the valve is much higher than other valves. As a result, when sizing an actuator for a ball valve with 50/50 seats, you must make sure you compensate for the increased torque. On ValveMan, we have already done that for you to take away to added work and stress of sizing the actuator.
A few of the valves we have on our website that have 50/50 seats available and when selected, the actuators are sized for 50/50 seats:
If you have any question about this post or any valve application, be sure to contact us today!