A7MD Pump Control Valve – Double Chamber (Passive Protection)
Spec Sheet: DNS A7XD Series Pump Control Valve Data Sheet
Certification: WRAS
A7MD – A passive protection for pump control
When the pump starts, A7MD will open slowly as the pressure increases in the middle chamber which provides less headloss.
When the pump stops or is out of electricity, A7MD will act as a check valve to prevent water hammer.
Internal Check Options:
Option 1: Quick close 100%.
Option 2: It will block 90% of the flow area quickly and close slowly at the last 10% stroke.
* DN50-DN150 is for slow closing only.
Description
A7MD Pump Control Valve – Double Chamber (Passive Protection)
Features:
· Mechanical pump control valve.
· A7MD is a double chamber pump control valve series that can minimize the headloss because the valve can be fully open during operation
· Simple, reliable, and easy to install and maintain.
· Nylon Reinforcement diaphragm for long life service.
· Stainless Steel seat to avoid corrosion.
· Stem movement with a guide to provide reliable performance.
· Fusion bonded epoxy coating to give rusting prevention.
· Meet stadnard BS EN1074-5, EN12266-1, EN558-1, EN1092-2
General Application:
In clean water or treated water.
Specifications
| Size Range | 50mm – 800mm |
|---|---|
| Pressure Rating | 10 Bar; 16 Bar; 25 Bar |
| End connection | PN10 / 16 / 25 |
| Working Temperature | -10°C to 80°C |