Model WG-P Pneumatic Piston Actuator
The Model WG-P Pneumatic Piston Actuator is a remarkably simple and practical design. This actuator will open a reverse acting gate valve and is suitable for all types of applications and environments.
Features –
- Easy to install and repair
- Lightweight and compact
- Lifting eyes standard on all models
- No special tools required for repair
- Easily repaired by one service technician
- Designed for long service life
- All non-stainless components are coated with Xylanto protect against harsh marine environments
- Floating piston travels on bearing, eliminating metal-to-metal contact
- Designed for safety
- Valve body penetration is on bonnet above backseat allowing monitoring of backseat and venting well pressure trapped below packing
- Heavy-duty compression spring ensures stem backseat at low-pressure
- Bonnet-to-stem, metal-to-metal fi re safe backseat protects against bonnet packing distortion or damage in the event of fire
- Packing retainer has wear bearings that prevent metal-to-metal contact with bonnet stem
- If pressure is present in the cylinder when the seal nut is backed off during servicing, the seal nut will vent pressure to atmosphere warning the technician of an unsafe condition
- Top shaft is free-floating thereby eliminating torque transfer when using manual hold-open device
- Top shaft indicates position of gate valve
- The WG-P meets NACE MR-01-75
