1
Safety Guidelines
1.
Follow the installation instructions.
2.
Use the appliance
•
according to its intended use
•
in good condition
•
with due regard to safety and risk of danger.
3.
Note that the appliance is exclusively for use in the
applications detailed in these installation instructions.
Any other use will not be considered to comply with
requirements and would invalidate the warranty.
4.
Please take note that any assembly, commissioning,
servicing and adjustment work may only be carried out
by authorized persons.
5.
Immediately rectify any malfunctions which may
influence safety.
2
Description of Function
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.
3
Technical Data
3.1 D15S
Media
Medium:
Connections/Sizes
Connection sizes:
Nominal sizes:
Pressure values
Max. inlet pressure:
Outlet pressure:
Nominal pressure:
Min. pressure drop:
Operating temperatures
Max. operating temperature
medium:
Drinking water
1
2", 2
/
", 3", 4", 6", 8"
2
DN50, DN65, DN80, DN100,
DN150, DN200
DN125 available with adapter
flanges DN100/DN125
16 bar
DN 50 - 100: 1.5 - 7.5 bar
DN 150 - 200: 1.5 - 8 bar
PN16
1.0 bar
65 °C
(WRAS approved up to 23°C)
GB
3.2 D15SN
Media
Medium:
Connections/Sizes
Connection sizes:
Nominal sizes:
Pressure values
Max. inlet pressure:
Outlet pressure:
Nominal pressure:
Min. pressure drop:
Operating temperatures
Max. operating temperature
medium:
3.3 D15SH
Media
Medium:
Connections/Sizes
Connection sizes:
Nominal sizes:
Pressure values
Max. inlet pressure:
Outlet pressure:
Nominal pressure:
Min. pressure drop:
Operating temperatures
Max. operating temperature
medium:
3.4 D15SI
Media
Medium:
Connections/Sizes
Connection sizes:
Nominal sizes:
Pressure values
Max. inlet pressure:
Outlet pressure:
Nominal pressure:
Min. pressure drop:
Operating temperatures
Max. operating temperature
medium:
2
Drinking water
2"- 4"
DN50 - DN100
16 bar
0.5 - 2 bar
PN 16
1 bar
65 °C
Drinking water
2" - 4"
DN50 - DN100
25 bar
3.0 - 10 bar
PN25
1 bar
65 °C
Drinking water
1
2
/
", 3", 4"
2
DN65, DN80, DN100
16 bar
1.5 - 6.5 bar
PN16
1.0 bar
65 °C
MU0H-1049 GE23 R0219