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Rising Stem Gate Valve is a type of gate valve which is able to follow the opening/closing position by moving the stem up&down movement, is able to follow electronically the movement by adding a monitoring key, and fully open position does not disrupt the flow. Rising Stem Gate Valve generates low head loss according to butterfly valves. Valve is closed or opened by moving wedge upward or downward via threaded stem mounted in the body. Wedge is rubber coated and It is not used as a check valve and flow rate adjustments.
The advantages disadvantages of rising stem gate valve:
● Easy to open and close.
● Small fluid resistance, sealing surface by medium erosion and erosion.
● Medium flow is not restricted, no turbulence, no pressure reduction.
● The sealing surface is easy to be eroded and scraped, difficult for maintenance.
● Larger structure requires more space and long-time opening.
Valve components Material specification
Components |
Material |
Body |
Cast Iron, Cast Steel, SS, Duplex SS, Brass, Bronze, etc. |
Disc |
Cast Steel, SS, Duplex SS, Monel, Inconel, Brass, Bronze, etc. |
Stem |
SS, Duplex SS, Monel, Inconel, Brass, Bronze, etc. |
Seat |
Cast Steel, SS, Duplex SS, Monel, Inconel, etc. |
Actuator |
Handwheel, Gearbox, Electrical/Pneumatic Actuator, etc. |
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