Honeywell D15NP Product specification sheet
Pressure reducing valve with balanced seat
Construction
The pressure reducing valve comprises:
• Housing with PN16 flanges per ISO7005-2, EN1092-2
• Spring bonnet with adjustment screw
• Adjustment spring
• Valve system complete with diaphragm
• Pressure gauge
Materials
• Grey cast iron housing
• Cast iron spring bonnet
• Bronze valve seat
• Bronze piston guide
• Cone up to DN150: brass, DN200: steal
• Spring steel adjustment spring
•EPDM diaphragm
• NBR seal collar
• NBR seals
EN0H-1008GE23 R1109 • Subject to change
• Stainless steel screws and nuts
D15NP
Low pressure pattern
Product specification sheet
Application
Pressure reducing valves of this type protect installations against
excessive pressure from the supply. They can be used for industrial or commercial applications within the range of their specification.
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 minimizes flow noise in the installation.
Special Features
• Non-rising stem for setting outlet pressure and position indicator on spring bonnet (except for DN200)
• The adjustment spring is not in contact with the potable water
• With inlet and outlet pressure gauge (DN80-DN150) or with
outlet pressure gauge (DN50, DN65, DN200)
• Inlet pressure balancing - fluctuating inlet pressure does not
influence outlet pressure
• Powder coated inside and outside - Powder used is physiologically and toxicologically safe
• Reliable and proven
Range of Application
Medium Water, compressed air* and nitrogen* in
consideration of valid standards (e.g. DIN
EN 12502)
Inlet pressure max. 16 bar
Outlet pressure 0.2 - 2 bar
Technical Data
Operating temperature
Nominal pressure PN16
Minimum pressure
drop
Diaphragm pressure
loading
Nominal size DN50 - DN200
*
As part of an installation being approved according to PED requirements, this
product must also be certified.
max. 70°C
0.5 bar
max. 3.0 bar
www.honeywell.com 47
D15NP Pressure reducing valve with balanced seat
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.
Options
D15NP-... A = With PN 16 flanged connections to DIN 2533
and BS 4504, cast iron housing
Special Versions available on request
Connection size
Connection size DN 50 65 80 100 125 150 200
Weight kg 21 37 54 87.5 135 196 580
Dimensions mm
L 230 290 310 350 400 480 600
approx. H 300 370 415 515 575 670 1430
h 106 126 154 183 210 248 305
D 192 260 295 410 440 510 780
F 165 185 200 220 250 285 340
-value m3/h 28 47 70 110 180 250 380
k
vs
Accessories
5
r
15
ba
0
16
RV283P Check valve
Grey cast iron housing, powder coated inside and
outside. DIN/DVGW tested in compulsory test sizes
DN 65, DN 80 and DN 100
FY69P Strainer
RV283P
With double mesh, grey cast iron housing, powder
coated inside and outside.
A = Mesh size approximately 0.5 mm
F76S-F
48 www.honeywell.com
FY69P
F76S-F Reverse-rinsing filter
Red bronze housing and filter bowl. Available in sizes
DN 65 to DN 100, with filter mesh sizes 100 µm
or 200 µm
EN0H-1008GE23 R1109 • Subject to change
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