Bray offers a state of the art modular designed self contained electro-hydraulic actuator, fully configurable to meet a wide range of valve services and applications. The actuator is optimized for direct mounting on Bray valves but also easily retrofits to a valve of your choice. The electro-hydraulic actuator comes with an efficient self-contained hydraulic power unit that can either be mounted directly onto the valve actuator body or supplied with its own floor stand to power a single or multiple hydraulic valve cylinders. The hydraulic power unit can operate with a flexible range of power options including a solar charged power pack for remote locations where the power supply choice is limited. Controlling a valve using hydraulic fluid offers several key advantages over using conventional pneumatic or electric gear operated actuators. These include high thrusts and torques, fast acting, failsafe using either a spring or stored energy accumulator, and the ability to precisely position a valve with accuracy and repeatability. The electro-hydraulic actuator utilizes a closed loop hydraulic pressure with zero exhaust emissions that are common with pneumatic and natural gas powered actuators. Operating range from -50°F (-46°C) to 212°F (+100°C) ensures they will operate in the coldest outdoor environments to the hottest process applications.
Features
- Zero emissions capability
- Completely self-contained
- Double Acting or Spring Return
- Electric on/off failsafe
- Continuous modulating duty
- Multiple voltage and control signal options including network protocols
- Can be operated by solar or wind charged power packs ideal for remote locations
- Fast opening and closing speeds
- Precise controllability and repeatable accuracy
- Fail Freeze, fail last, fail open or fail close using Spring or Stored Accumulator Energy
- Remote and local diagnostics capability
- Remote hydraulic power pack mounting option available
- Remote and local controls
- Line break protection
- Partial stroke test
- Weather-proof or explosion-proof construction
- Actuator system alarm options
- Manual override for operation during power loss
- ESD and PST capable
- UL, FM, ATEX, CSA certifications
- SIL capable