Dynatorque SRD
Nondeclutchable manual override
Enables manual operation of an automated valve (pneumatic, hydraulic, or electric) in a contingency.
Pneumatic Ledeen Actuators
Compressed air, natural gas, or nitrogen actuator supply
Overview
Quarter-turn pneumatic actuators are used for on/off or modulating control of any ball, plug, or butterfly valve utilizing compressed air, natural gas, or nitrogen actuator supply.
Applications
Quarter-turn pneumatic actuators are used for on/off or modulating control of any ball, plug, or butterfly valve utilizing compressed air, natural gas, or nitrogen actuator supply.
Benefits
The consistent design provides a significant reduction in the quantity of recommended spare parts and seal kits, which reduces costs within maintenance programs.
Features
- All models available as double acting or spring return
- Open and close travel stops, ±3° minimum
- Local position indication
- Suitable for SIL3 environments
Tech Specs
| Core | Series | Torque and Thrust Outputs | Pressure Range (Gauge) | Temperature Range |
| Quarter-turn |
VA Series | 9,700 lbf.in [1,100 N.m] | 40 to 175 psi [3 to 12 bar] | –22 to 212 degF [–30 to 100 degC] |
| GS and SY Series | 5,700,000 lbf.in [644,000 N.m] | 40 to 175 psi [3 to 12 bar] |
–22 to 212 degF [–30 to 100 degC] |
|
| Linear | LD Series | 4,400,000 lbf | 40 to 175 psi [3 to 12 bar] |
–22 to 212 degF [–30 to 100 degC] |
