Honeywell D04FS Product specification sheet

D04FS

Pressure Reducing Valve

Product specification sheet

Application

Pressure reducing valves of this type protect household water
installations against excessive pressure from the supply. They
can also 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

• Compact construction

• The adjustment spring is not in contact with the potable water

• Outlet pressure adjustable with green adjustment knob

• Inlet pressure balancing - fluctuating inlet pressure does not
influence outlet pressure

• Meets KTW recommendations for potable Water

Construction

The pressure reducing valve comprises:

• Housing with pressure gauge connection G

• Spring bonnet with adjustment opening

• Green adjustment knob

•Adjustment spring

• Pressure gauge not included (see accessories)

Materials

• Dezincification resistant brass housing

• High-quality synthetic material spring bonnet

• Spring steel adjustment spring

• NBR seals

EN0H-1039GE23 R0709 • Subject to change

1

/4"

Range of Application

Medium Water

Inlet pressure max. 16 bar

Outlet pressure 1.5-6 bar adjustable

Technical Data

Operating temperature max. 70°C (WRC approval up to 23°C)

Minimum pressure drop 1 bar

Connection size

3

/8", 1/2", 3/4"

www.honeywell.com 1

D04FS Pressure Reducing Valve

Ra

Ri

Method of Operation

Spring loaded pressure reducing valves operate by means of a
force equalising system. The force of a piston operates against
the force of an adjustment spring. If the outlet pressure and
therefore piston force fall because water is drawn, the greater
force of the spring causes the valve to open. The outlet pressure
then increases until the forces between the piston and the spring

h

H

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

D04FS-... A = Standard pattern

L

Connection size Ri

Ra

Nominal size

DN 10 15 20

3

/8"

3

/4"

1

/2"

3

/4"1"

3

/4"

diameter
Weight kg 0.28 0.29 0.33
Dimensions mm

L848488
h 82.7 82.7 82.7

H 106 106 106

k

-value m3/h t.b.d 2.7 2.9

vs

Accessories

M38K Pressure gauge

Connection size

Housing diameter 50 mm, below connection thread
G1/4". Ranges: 0 - 4, 0 - 10, 0 - 16 or 0 - 25 bar.
Please indicate upper value of pressure range when
ordering

M38K

Automation and Control Solutions

Honeywell GmbH
Hardhofweg
D-74821 Mosbach
Phone: [phone]
Fax: [phone]
http://europe.hbc.honeywell.com
www.honeywell.com

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-1039GE23 R0709
Subject to change without notice
© 2009 Honeywell GmbH