• Valve insert complete with diaphragm and valve seat
• Spring bonnet with adjustment knob
• Filter with 0.5 mm mesh
•Filter bowl
• Adjustment spring
• Pressure gauge not included (see accessories)
Materials
• Red bronze housing
• High-quality synthetic material valve insert
• Brass spring bonnet
• Stainless steel filter mesh
• Brass filter bowl
• Spring steel adjustment spring
• Fibre-reinforced NBR diaphragm
• NBR seals
D16N
Low pressure pattern
Product specification sheet
Application
Pr essure 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
• The outlet pressure is set by turning the adjustment knob
1
•G
/4" pressure gauge connections on inlet and outlet
• The adjustment spring is not in contact with the potable water
• The valve insert is of high quality synthetic material and can
be fully exchanged
• Intergral filter
• Easily retrofittable to convert valve to a reverse-rinsing filter
combination
• Inlet pressure balancing - fluctuating inlet pressure does not
influence outlet pressure
Range of Application
MediumWater, compressed air* and nitrogen* in
consideration of valid standards (e.g. DIN
EN 12502)
Inlet pressuremax. 25 bar
Outlet pressure0,5-2 bar
Technical Data
Operating temperature
Nominal pressurePN25
Minimum pressure
drop
Nominal sizeDN15 - DN40
*
As part of an installation being approved according to PED requirements, this product must also be certified.
max. 70°C
0,5 bar
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D16N Pressure reducing valve with flanged connection
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
D16N-... A = With PN 25 flanged connections to DIN 86021
Reverse-rinsing filter with red bronze filter cup for
retro-conversion of a pressure reducing valves to a
filter combination unit
M38KPressure gauge
Housing diameter 50 mm, rear connection thread
1
G
M38K
/4". Ranges: 0 - 4, 0 - 10, 0 - 16 or 0 - 25 bar.
Please indicate upper value of pressure range when
ordering
ZR06KDouble ring wrench
For removal of spring bonnet and filter bowl
FN09S-AM
36www.honeywell.com
ZR06K
EN0H-1006GE23 R0307 y Subject to change without notive
Installation Example
D16N Pressure reducing valve with flanged connection
Connection sizeDN1520253240
W*mm5560658090
* Minimum distance from wall to centre line of pipework
Installation Guidelines
• Install in horizontal pipework with filter bowl downwards.
• 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)
20
30
10
bar
40
0
2
3
1
bar
0
4
Typical Applications
Pressure reducing valves of this type are suitable for household,
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
Flow Diagram
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D16N Pressure reducing valve with flanged connection
Manufactured for and on behalf of the
Environment and Combustion Controls Division of
Honeywell Technologies Sàrl, Ecublens, Route du
Bois 37, Switzerland by its Authorised
Representative Honeywell GmbH