Clear Stem Protector
For actuator applications
See the actuator's rising stem while preventing damage to it.
Part of our portfolio of SSS surface safety system actuators is the Model RV reduced-volume hydraulic actuator, which reduces the overall cost of the operating system. This actuator operates valves ranging from 2 to 4 in and valve working pressures to 5,000 psi [345 bar]. It also utilizes a translating cylinder design, which makes maintenance of the single T-seal inherently simple. The inspection window provides visual indication of the gate valve position and allows a side-mount magnetic limit switch to be installed.
The Model RV actuator’s design incorporates our patented Quick-Disconnect bonnet, permitting installation or removal of the actuator without depressurizing the gate valve. Additional model options include the RV with a one-piece stem and mechanical opener, and the RV with a heat-sensitive lock-open device.
Service for 2.5-in piston
Standard, H2S, and CO2 Service | Maximum Control Pressure |
Mounted on 2-in valve | (0.540 × valve pressure) + 213 psi [14.6 bar] |
Mounted on 2 1/2-in valve | (0.684 × valve pressure) + 278 psi [19.1 bar] |
Mounted on 3-in valve | (0.821 × valve pressure) + 282 psi [19.4 bar] |
Service for 3-in piston
Standard, H2S, and CO2 Service | Maximum Control Pressure |
Mounted on 4-in valve | (0.880 × valve pressure) + 75 psi [5.1 bar] |
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