constant level minimizes flow noise in the installation.

APPROVALS
? DVGW
? WRAS (up to 23 °C)
SPECIAL FEATURES
? Inlet pressure balancing – no influence on outlet
pressure by fluctuating inlet pressure
? Up to size 11/4" approved by LGA for low noise, Group 1
without limitations
? The valve insert is of high-quality synthetic material
and can be fully exchanged
? The outlet pressure is set by turning the adjustment
knob
? The set pressure is directly indicated on the set point
scale
? The adjustment spring is not in contact with the
drinking water
? Integral fine filter
? Also available without fittings
? Conforms to BSEN 1567
? All materials are UBA conform
? ACS certified

TECHNICAL DATA
Note: Use the SM06T brass filter bowl, if the valve can be exposed to
UV radiation or solvent vapors.
Media
Medium: Drinking water
Connections/Sizes
Connection sizes: 1/2" - 2"
Nominal sizes: DN15 - DN50
Pressure values
Max. inlet pressure with clear
filter bowl:
16 bar
Max. inlet pressure with
brass filter bow:
25 bar
Outlet pressure: 1.5 - 6 bar
Preset outlet pressure: 3 bar
Min. pressure drop: 1 bar
Operating temperatures
Max. operating temperature
medium (10 bar/brass filter
bowl):
70 °C
Max. operating temperature
medium accord. to EN 1567:
30 °C

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 and 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 forces between the diaphragm and 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, thus
providing inlet pressure balancing.
TRANSPORTATION AND STORAGE
Keep parts in their original packaging and unpack them
shortly before use.
The following parameters apply during transportation and
storage:

INSTALLATION GUIDELINES
Setup requirements
? Install in horizontal pipework with filter bowl
downwards
? Install shut-off valves
? The device downstream should be protected by means
of a safety valve (installed downstream of the pressure
reducing valve). In these cases the delivery pressure of
the pressure reducing valve shall be set to at least 20 %
below the response pressure of the pressure reliefvalve
according to EN 806-2
? The installation location should be protected against
frost and be easily accessible
? Pressure gauge can be read off easily
? With clear filter bowl, degree of contamination can
be easily seen
? Simplified maintenance and cleaning
? Install downstream of the filter or strainer
? Provide a straight section of pipework of at least five
times the nominal valve size after the pressure
reducing valve (in accordance with EN 806-2)
? Requires regular maintenance in accordance with
EN 806-5

Parameter Value
Environment: clean, dry and dust free
Min. ambient temperature: 5 °C
Max. ambient temperature: 55 °C
Min. ambient relative
humidity:
25 % *
Max. ambient relative
humidity:
85 % *

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