Construction
The filter combination comprises:
• Housing with pressure gauge
• Spring bonnet with adjustment knob and setting scale
• Valve insert complete with diaphragm and valve seat
• Fine filter in clear filter bowl
• Rotatable connector piece (FK76CS only)
• Threaded union connections
• Ball valve with drain connection
• Double ring wrench
Materials
• Red bronze housing
• Red bronze connector piece
• High-quality synthetic material spring bonnet
• High-quality synthetic material valve insert
• Stainless steel fine filter
• Shock-resistant, clear transparent synthetic material filter
EN0H-1104GE23 R1009 • Subject to change
bowl
• Fibre-reinforced NBR diaphragm
• NBR seals
FK76CS/FKN76CS
Reverse rinsing filter combination
with rotatable connector flange
Product specification sheet
Application
The FK76CS/FKN76CS filter combinations comprise reverse
rinsing filter and pressure reducing valve in one appliance. They
ensure a continuous supply of filtered water. The fine filter stops
the ingress of foreign bodies, for example rust particles, strands
of hemp and grains of sand. The pressure reducing valve
prevents pressure damage and reduces water consumption.
All individual units correspond to the requirements of current DIN/
DVGW specifications. Technical features of each unit also apply
to the combination assembly.
Special Features
• DVGW-approval requested
• Double Spin Technology
o Cartridge with external rotor enabling simultaneous
cleaning in lower and upper filter areas
o Visual function check possible
• Balanced seat valve
• Filtered water supplied even during reverse rinsing
• Patented reverse rinsing system - fast and thorough cleaning
of the filter with small amount of water
• Memory ring indicates when next manual reverse rinsing is
due
• Automatic reverse rinsing actuator with bayonet connector
can be retrofitted
• Shock resistant clear synthetic material filter bowl enables
easy checking of filter contamination
• Inlet pressure balancing - fluctuating inlet pressure does not
influence outlet pressure
• Valve and filter inserts fully interchangeable
Range of Application
Medium Water
Inlet pressure Maximum 16.0 bar with clear filter bowl
Outlet pressure 1.5 to 6.0 bar
The filter is constructed for drinking water installations. In case of
a process water application the filter has to be proven individually.
Technical Data
Installation position Vertical or horizontal, with filter bowl
downwards
Operating pressure Minimum 1.5 bar
Operating temperature Maximum 40 °C with transparent filter
bowl
Connection size
3
/4", 1", 11/4"
www.honeywell.com 15
FK76CS/FKN76CS Reverse rinsing filter combination
Connection size with DA74C R3/4"1"11/4"
Nominal size diameter DN 20 25 32
Weight kg 3.9 4.0 4.1
Dimensions mm
L 158 179 197
T 177 177 181
t959599
H 493 493 493
h 363 363 363
D979797
-value 5.4 6.0 9.0
k
vs
DIN/DVGW Approval No. requested
RV277
ZA76C
VST06A
Z11S
VST06B
AF11DS
FT09RS
DA74C
Method of Operation
The filter combination combines reverse rinsing filter and pressure reducing valve in one appliance.
The downstream reverse rinsing fine filter holds back any dirt
particles in the water. These particles are then completely flushed
out by reverse rinsing.
Filters with Double Spin Technology have turbine blades which
circulate the water and thereby set the rotor on the upper filter
into a rotational motion. The internal impeller rinses off particles
that have adhered to the upper filter at the intersecting points
with the rotor.
The integral pressure reducing valve functions on a balanced
force principle whereby the force exerted by a diaphragm is
balanced against the force of an adjustment spring. The inlet
pressure has no influence on opening or closing of the valve. Inlet
pressure fluctuation does not therefore affect the outlet pressure.
Options
FK76CS-...AA = Filter mesh size 100 µm, incl. rotatable
connector piece DA74C with threaded male
connections
Connection size
FKN76CS-1A = Filter mesh size 100 µm; rotatable connector
piece DA74C has to be ordered separately see accessories
Accessories
Z11S Automatic reverse rinsing actuator
For automatic filter cleaning at presettable intervals
FT09RS Red-bronze filter bowl
For temperatures up to 70°C and operating pressures
up to 25.0 bar
ZA76C Connector piece
For conversion of the fine filters with rotatable
connector pieces (1 1/4" and 1 1/2") into retrofit filter
combinations (Converts 63 mm hole centres to 45 mm
hole centres)
RV277 Inlet check valve
1
Available in sizes R
/2" - 2"
VST06 Connection set
Connection set
A = Threaded male connection;
B = Solder union connection
AF11DS Filter insert complete
Available with filter meshes 20 µm, 50 µm, 100 µm,
200 µm, 300 µm, 500 µm (for filters with Double Spin
Technology)
DA74C Rotatable connector piece
For connection of retrofit filters and filter combinations
* The filter guide (either with double spin or without double spin feature) is included
in the packaging of the replacement filter inserts (AF11DS and AF11S) only for the
sizes 1/2" up to 11/4!
EN0H-1104GE23 R1009 • Subject to change
16 www.honeywell.com
Installation Example
FK76CS/FKN76CS Reverse rinsing filter combination
Installation Guidelines
• Install in horizontal or vertical pipework with filter bowl
downwards
o This position ensures optimum filter efficiency
• Install shutoff valves
• Ensure good access
o Pressure gauge can be read off easily
o Degree of contamination can be seen with clear filter bowl
o Simplifies maintenance and inspection
• The installation location should be protected against frost
• Fit immediately after water meter
o Corresponds to DIN 1988, Part 2
Flow Diagram
Typical Applications
Filter combinations of this type are suitable for all types of household installations. They can also be used for commercial and
industrial applications within the limits of their specifications.
Filter combinations of this type are installed:
• Where there is existing metal or plastics pipework
• For installation in horizontal or vertical pipework
• As replacement for an existing filter
• Where space is limited
• For protection against noise when the static pressure at take
off points exceeds 5.0 bar (DIN 4109)
• If the static pressure exceeds the maximum permissible
operating pressure of an installation
• If pressure fluctuations in the downstream system must be
avoided
EN0H-1104GE23 R1009 • Subject to change
www.honeywell.com 17
FK76CS/FKN76CS Reverse rinsing filter combination
1
2
4
3
5
6
Spare Parts
FK76CS/FKN76CS Filter Combinations (From 1997
onwards)
No. Description Dimension Part No.
1 Spring bonnet
3
/4" - 11/4" 0901517
complete
(with setting scale)
3
2 Valve insert complete
/4" - 11/4"D06FA-1A
(without sieve)
3 Seal ring set
3
/4" 0901444
(Pack of 10) 1" 0901445
1
1
/4" 0901446
4 Pressure gauge M07M-A16
(0 - 16 bar)
5 Flange seal
6 Filter insert complete
3
/4" - 11/4" 5536400
3
/4" - 11/
"
4
AF11DS-1A
for filters with Double
Spin Technology
Filter mesh 100 µm
3
7 Clear filter bowl
/4" - 11/4"KF11S-1A
complete
8 O-ring set
3
/4" - 11/4" 0900747
(Pack of 10)
9 Drain connection
3
/4" - 11/4" AA76-1/2A
10
9
10 Ball valve complete3/4" - 11/4" KH11S-1A
11 Double ring wrench
8
For removing the filter
3
/4" - 11/4" ZR10K-1
bowl (no fig.)
* The filter guide (either with double spin or without double spin feature) is included
in the packaging of the replacement filter inserts (AF11DS and AF11S) only for the
sizes 1/2" up to 11/4!
7
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
Manufactured for and on behalf of the
Environmental and Combustion Controls Division
of Honeywell Technologies Sàrl, Ecublens, Route
du Bois 37, Switzerland by its Authorised Representative Honeywell GmbH
EN0H-1104GE23 R1009
Subject to change without notice
© 2009 Honeywell GmbH
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