

Features
- Double chamber design giving instant response regardless of differential pressure
- Minimal head loss as valve can go to 100% open if required
- Very high flow capacity with obstacle free flow path
- High stability and accuracy with fully adjustable response rate
- Drip tight sealing even at lower pressures
- Fully Protected diaphragm from flow path
- Optional operation in very low pressure
- Moderated closing curve surge free
- Flexible design – Easy addition of features
- V-Port Throttling Plug (Optional) – Very stable at low flow
Description
The Bermad 730-X Pressure relief/sustaining hydraulically operated control valve that can fulfill either of two separate functions: When installed in-line, it sustains minimum pre-set, upstream (back) pressure, regardless of fluctuating flow or varying downstream pressure. When installed as a circulation valve, it relieves excessive line pressure when above maximum pre-set. This valve is a double chamber configuration using 3-way control, being extremely responsive regardless of operating conditions, allowing full opening without the risk of hydraulic lock out. The double chamber design also ensures the valve acts like a check valve preventing reverse flow.