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Pressure reducing valve with balanced seat
Construction
The pressure reducing valve comprises:
• Housing with PN25 flanges to ISO 7005-2, EN 1092-2
• Spring bonnet with adjustment screw
• Adjustment spring
• Valve system complete with diaphragm
• Pressure gauge
Materials
• Spherolitic cast iron housing
• Cast iron spring bonnet
• Brass valve seat
• Brass piston guide
• Cone up to DN150: brass, DN200: steal
• Spring steel adjustment spring
•EPDM diaphragm
• NBR seal collar
• NBR seals
EN0H-1009GE23 R0209 • Subject to change
• Stainless steel screws and nuts
D17P
Standard Pattern
Product specification sheet
Application
Pressure reducing valves of this type protect installations against
excessive pressure from the supply. They can be used for
household, 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 outlet pressure gauge
• 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. 25.0 bar
Outlet pressure 1.5 - 8 bar - DN50 - 150
1.5 - 6 bar - DN200
Technical Data
Operating temperature
Nominal pressure PN25
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
1.0 bar
max. 9.0 bar
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D17P 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
D17P-... B = With PN 25 flanged connections to DIN 2534 and
BS 4504, spherolitic cast iron housing
Special Versions available on request
Connection size
Connection size DN 50 65 80 100 150 200
Weight kg 16.2 28.2 41.5 67 150 408
Dimensions mm
L 230 290 310 350 480 600
H 282 315 356 418 573 1340
h 106 126 154 183 248 305
F 165 185 200 235 300 360
-value m3/h 28 47 70 110 250 380
k
vs
Accessories
FY71P Strainer
With double mesh, cast steel housing
B = Mesh size approximately 0.5 mm
2 www.honeywell.com
FY71P
EN0H-1009GE23 R0209 • Subject to change
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Installation Example
Connection size DN 50 65 80 100 125 150 200
W* mm 100 120 130 145 165 180 220
* Minimum distance from wall to centre line of pipework
D17P Pressure reducing valve with balanced seat
Installation Guidelines
• Install in horizontal pipework with spring bonnet directed
upwards
• Install shutoff valves
• The installation location should be protected against frost
and be easily accessible
o Pressure gauge can be read off easily
o Simplified maintenance and cleaning
• Install downstream of the filter or strainer
o This position ensures optimum protection for the pressure
reducing valve against dirt
• Provide a straight section of pipework of at least five times the
nominal valve size after the pressure reducing valve (in accordance with DIN 1988, Part 5)
Flow Diagram
Typical Applications
Pressure reducing valves of this type are suitable for multi dwelling buildings, industrial and commercial applications within the
range of their specifications.
Pressure reducing valves should be installed:
• If the static pressure exceeds the maximum permissible value
for the system
• If several pressure zones are required when a pressurisation
system is used (pressure reducers on each storey of a building)
• If pressure fluctuations in the downstream system must be
avoided
• To achieve constant inlet and outlet pressures on pumped
pressure boosting systems
• To reduce the water consumption
EN0H-1009GE23 R0209 • Subject to change
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D17P Pressure reducing valve with balanced seat
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Spare Parts
Pressure Reducing Valve D17P, from 2003 onwards
No. Description Dimension Part No.
1 Diaphragm for D15P DN 50 5707300
and D17P DN 65 5707400
DN 80 5707500
DN 100 5707600
DN 125 5707700
DN 150 5707800
DN 200 5707900
2 Set of seals DN 50 0901353
DN 65 0901354
DN 80 0901355
DN 100 0901356
DN 125 0901357
DN 150 0901358
DN 200 0901359
5
2
3 Guide bush with seal DN 50 0900255
DN 65 0900256
DN 80 0900257
DN 100 0900258
DN 125 0900259
DN 150 0900260
DN 200 0900261
2
4 Hexagon-plug all S06M-1/4
with O-ring R
1
/4"
(5 pcs.)
2
5 Seat bush with seal DN 50 0900247
DN 65 0900248
DN 80 0900249
DN 100 0900250
DN 125 0900251
DN 150 0900252
DN 200 0900253
Automation and Control Solutions
Honeywell GmbH
Hardhofweg
D-74821 Mosbach
Phone: (49) 6261 810
Fax: (49) 6261 81309
http://europe.hbc.honeywell.com
www.honeywell.com
6 Pressure gauge M07M-A10
Ranges 0 - 10 bar
Manufactured for and on behalf of the
Environmental and Combustion Controls Division
of Honeywell Technologies Sàrl, Rolle, Z.A. La
Pièce 16, Switzerland by its Authorised Representative Honeywell GmbH
EN0H-1009GE23 R0209
Subject to change without notice
© 2009 Honeywell GmbH
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