Construction
The fine filter comprises:
• Housing with pressure gauge
• Threaded male connections (versions AA and AAM)
• Fine filter in clear filter bowl (versions AA and EA)
• Filter in red-bronze filter bowl (version AAM)
• Fine filter in clear filter bowl
• Ball valve with drain connection
• Double wring wrench
Materials
• Dezincification resistant brass housing
• Brass threaded connections
• Stainless steel fine filter
• Red-bronze or shock-resistant, clear transparent synthetic
material filter bowl
• NBR seals
F76S
Reverse rinsing fine filter
Product specification sheet
Application
F76S reverse rinsing filters ensure a continuous supply of filtered
water. The fine filter prevents the ingress of foreign bodies, for
example rust particles, strands of hemp and grains of sand. The
appliances correspond to the requirements of current DIN/DVGW
specifications..
Special Features
• DIN/DVGW approved
• Double Spin Technology for connection sizes
o Cartridge with external rotor enabling simultaneous
cleaning in lower and upper filter areas
o Visual function check possible
• 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
• Large filter surface
• Shock resistant clear synthetic material filter bowl enables
easy checking of filter contamination
• Filter and complete filter bowl are replaceable
• Also available without connections
• Standardised discharge connection
• Meets KTW recommendations for potable water
Range of Application
Medium Water
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 Horizontal, with filter bowl downwards
Operating temperature
Operating pressure min. 1.5 bar
Connection size
max. 40 °C with clear filter bowl
max. 70 °C with red-bronze filter bowl
max. 16.0 bar with clear filter bowl
max. 25.0 bar with red-bronze filter bowl
1
/2", 3/4", 1", 11/4", 11/2", 2"
1
/2" to 11/4"
EN0H-1110GE23 R0409 • Subject to change
www.honeywell.com 23
F76S Reverse rinsing fine filter
Method of Operation
The filter insert is divided into two parts. In the „filtering“ position,
only the lower, larger section is rinsed through by water jets from
outside to inside. The small upper section does not come in
contact with unfiltered water. When the ball valve is opened for
reverse rinsing, then the whole filter insert is pushed downwards
until the water supply to the outer side of the main filter is
stopped. Simultaneously, the water flow is opened to the upper
part of the filter. The water needed for cleaning the filter passes
through the upper filter section, then the rotating impeller and the
main filter from inside to outside, i.e. the filter is reverse rinsed
with filtered water. In that way the upper filter is also cleaned by
jets from the impeller. The filter automatically switches back to
the operating position when the ball valve is closed again.
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.
Options
F76S-...AA = Threaded male connections, filter mesh size
100 µm
F76S-...AAM =Red-bronze filter bowl, threaded male connections,
filter mesh size 100 µm
F76S-...EA = Without connections, filter mesh size 100 µm
Connection size
Filters with other mesh widths available on request
Connection size R
1
/2"
Nominal size diameter DN 15 20 25 32 40 50
Weight approx. kg 2.9 2.9 3.1 3.3 4.0 4.8
Dimensions mm
L 170 178 209 222 246 267
l 110 110 130 130 150 150
H 449 449 453 453 532 532
h 350 350 351 351 417 417
D97979797120120
3
Flow value at ∆p=0.5bar m
k
-value 4.8 7.2 9.8 10.7 21.0 22.0
vs
/h 3.8 5.5 7.5 8.9 15.6 16.5
DIN/DVGW Approval No. NW-9301 AT 2308
Double Spin Technologie Yes Yes Yes Yes No No
3
/4"1"1
1
/4"1
Accessories
Z11S Automatic reverse rinsing actuator
For automatic filter cleaning at presettable intervals
RV277 Inlet check valve
1
Available in sizes R
/2" - 2"
1
/2"2"
Z11S
DDS76
24 www.honeywell.com
AF11S
RV277
AF11DS
VST06A
VST06B
VST06 Connection set
Connection set
A = Threaded male connection;
B = Solder union connection
DDS76 Differential pressure switch
AF11S Filter insert complete
Available with filter meshes 20 µm, 50 µm, 100 µm,
200 µm, 300 µm, 500 µm
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)
* 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-1110GE23 R0409 • Subject to change