TOWER Pressure Reducing Valve Instruction Manual

TOWER Pressure Reducing Valve

PRESSURE REDUCING VALVE

• MODEL PRV— 3/4” BSP THREADED
• MODEL PRVG— 22MM COMPRESSION

Product instructions

Pressure-reducing valves are suitable for water supplies of up to 800 C, and inlet pressures of up to 16 bar. The outlet pressure can be adjusted between 1 bar and 6 bar. Normally these valves are fitted to the incoming water supply pipe.
Tower PRV & PRVG provide static and dynamic water pressure reduction.
Installation orientation and additional provision:
The valve must be installed such that the embossed flow direction arrow on the valve body matches the direction of flow in the pipe. For ease of servicing it is recommended to fit isolation valves upstream and downstream of the valve.
Setting instruction:
This pressure-reducing valve has been factory preset at 3 bar. Please refer to the diagrams below.

1. Close all outlets downstream of the valve.
2. Turn screw (A) anti-clockwise to reduce the downstream pressure.
3. Turn screw (A) clockwise to increase the downstream pressure.

Technical specification

• Maximum inlet working pressure 16 bar

• Setting range 1 bar—6 bar

• Maximum water temperature 800C

• Pre-setting at factory 3 bar

• Pressure gauge reading 0—10bar / 140psi

• Pressure gauge connection 1/4” BSP

• Fluid type Water

• Body material Brass DZR (Chrome)

• Care advice: PRVs are supplied fitted with an inbuilt stainless steel strainer to protect the cartridge from system debris. It is recommended that this filter is periodically cleaned; this can be achieved with the valve in situ.
  Procedure: Close both inlet and outlet isolating valves. If isolating valves are not installed drain the system. Unscrew the black plastic cap carefully and using pliers
  pull the complete filter out. Clean with warm water, and check and refit the cartridge by pushing it back into the body. Re-install the plastic cap, spring, and adjustment screw. Turn the water back on and check the pressure setting.

• Use the supplied pressure gauge at (B) to show the outlet pressure during adjustment. If required you can later remove the gauge and refit the supplied plug—as long as isolation valves have been fitted.

• TFC GROUP LLP Tower House, Vale Rise, Tonbridge, Kent TN9 1TB

• Telephone: 01732 351680 Fax@ 01732 354445 Web: www.tfc-group.co.uk

References

• TFC Group LLP – Tower – Central Heating Controls

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