Description

Bermad 350DC-A-3 x 2 C.I.Double Chamber Filter Back Wash Valve

The Bermad 350 Series Double Chamber Back Wash Valve replaces the older, single chamber valve. The valve is used in media and disc filter applications for automating bach wash of the filter systems. The valve can be supplied in angle or in line pattern.

Application

Automatic Backwash of Filter Batteries
- Gravel Filters
- Sand Filters
- Disk Filters
- Screen Filters
Single Filter Autonomic Backwash System

Line Pressure Driven
Double Chambered Design
- Wide application range
- Requires low actuation pressure
- Protected diaphragm
Dynamic Sealing
- Seals at very low pressure
- Prevents seal friction and erosion
Cast Iron Body
- Rigid construction, high stress resistance
Short Valve Travel
- Smooth changes of flow direction
- Eliminates mixing of supply and waste water
User- Friendly
- Can be installed in various orientations
- Simple in-line inspection and service

Operation

A Hydraulic Command, which pressurizes the Upper Control Chamber, forces the Diaphragm actuated Plug Assembly to move towards the Supply Port Seat, eventually sealing it drip tight. This allows flow from the filter through the Drain Port Seat. Venting the upper control chamber causes the line pressure, together with the Spring force, to move the Valve back to filtration mode.