Introduction By installing a pressure reducing valve, pressurisation damage is avoided and water consumption is reduced. The set pressure is also maintained constant even when there is wide inlet pressure fluctuation. Reduction of the operating pressure and maintaining it at a constant level minimises flow noise in the installation.    Application Pressure reducing valves protect household water installations for industrial or commercial applications within the range of their specification.

Method of operation Spring loaded pressure reducing valves operate by means of a force equalising system. The force of a diaphragm operates against the force of an adjustment spring. If the outlet pressure & therefore diaphragm force fall because water is drawn, the then greater force of the spring causes the valve to open. The outlet pressure then increases until the force between the diaphragm & the spring are equal again. The inlet pressure has no influence in either opening or closing of the valve. Because of this, inlet pressure fluctuation does not influence the outlet pressure.

   Special Features

• Integral filter with easy clean attachment (Optional)
• The valve insert is of high quality synthetic material and can be fully exchanged.
• In-built provision for inserting pressure gauge.
• Inlet pressure balancing-fluctuating inlet pressure does not influence outlet pressure.
• Servicing and maintenance without removal from pipe work.
• Light weight.
• The adjustment spring is not in contact with water.

   Technical Data

Medium	Water & Compressed air
Inlet Pressure	Maximum 20.0 bar
Outlet Pressure	1.0 - 6.0 bar
Connection size	1/2" to 2"
End connections	Screwed Female
* special version available on request.

   Available Options

W3-B	Brass Body with in-built filter.
W3-EC	Same as W3-B but without filter.
W3-SC	Powder coated Gun Metal Body with filter & S.S. spring & bonnet parts and Easy Clean attachment (Cleans filter automatically at the turn of a knob).

   Dimensions

Nominal Size DN	15	20	25	32	40	50
Weight App (kg)	0.7	0.8	1.3	1.9	3.0	4.0
Dimensions (mm)
Width	80	80	100	100	125	125
Height	128	128	157	157	265	265
Kvs Value	2.4	3.1	7.6	9.1	12.6	12.0

 

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