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Patent-No. DE-PS 29 17 090
5
r
15
ba
0
16
Construction
The fine filter comprises:
• Housing with pressure gauge
• PN 16 flanges to DIN 86021
•Filter bowl
• Fine filter
• Ball valve with lever and drain connection
Materials
• Red bronze housing and filter bowl
• Stainless steel, red bronze and brass bronze inner
• Stainless steel fine filter
F76S-ZFA
Reverse rinsing fine filter with flanges
Product specification sheet
Application
F76S-ZFA flanged reverse rinsing filters are for installations with
high water demand. They can be used in large residential buildings, for central water supply and in commercial or industrial
applications. F76S-ZFA flanged filters have the same highly efficient reverse rinsing filtering system as the range of household
fine filters. The F76S-ZFA can be retrofitted with the Z11AS fully
automatic reverse rinsing actuator and the DDS76 differential
pressure switch. The use of a filter in a system prevents the
ingress of foreign bodies, for example rust particles, strands of
hemp and grains of sand. With metal or plastics pipework, DIN
1988, Part 2 specifies that a filter should be fitted in the drinking
water supply immediately after the water meter.
Special Features
• DIN/DVGW-approved
• Filtered water supplied even during reverse rinsing
• Filter insert fully interchangeable
• Patented reverse rinsing system - fast and thorough cleaning
of the filter with small amount of water
• Fully automatic reverse rinsing with retrofittable Z11AS automatic reverse rinsing actuator
• Differential pressure switch can be retrofitted
• Reverse rinsing strainer mesh is covered during normal operation
• Red bronze construction gives high level of corrosion protection
• Forced flow provides optimal water exchange in the filter bowl
• Large filter surface
• Tested to European drinking water supply standards
• Meets KTW recommendations for potable water
• Standardised discharge connection
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 pressure Minimum 1.5 bar
Maximum 16.0 bar
Operating temperature Maximum 70 °C
EN0H-1141GE23 R1206 • Subject to change without notice
Connection size DN 125
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F76S-ZFA Reverse rinsing fine filter with flanges
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.
Options
F76S-125ZFA = Filter mesh size 100 µm
Connection size DN 125
Weight approx. kg 53
Dimensions mm
L484
H818
h656
D250
F250
Flow value at ∆p=0.2bar m
-value 158
k
vs
3
/h 71
DIN/DVGW Approval No. NW-9301 AT 2531
RV283P
Z11AS
Accessories
Z11AS Automatic reverse rinsing actuator
For automatic reverse rinsing of the filter at presettable
intervals
D15P Pressure reducing valve
Grey cast iron housing, powder coated inside and
outside.
Available in sizes DN 50 - 200
RV283P Check valve
Grey cast iron housing, powder coated inside and
outside. DIN/DVGW tested in compulsory test sizes
DN 65, DN 80 and DN 100
D15P
2 www.honeywell.com
DDS76
DDS76 Differential pressure switch
EN0H-1141GE23 R1206 • Subject to change without notice
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Installation Example
F76S-ZFA Reverse rinsing fine filter with flanges
10
5
15
0
16
10
5
15
bar
0
16
Installation Guidelines
• Install in horizontal 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 Simplifies maintenance and inspection
• Fit immediately after water meter
o Corresponds to DIN 1988, Part 2
Flow Diagram
Typical Applications
Fine filters of this type are suitable for large residential buildings,
commercial and industrial applications and for central water
supply systems within the limits of their specifications.
Fine filters of this type are installed:
• Where there is existing metal or plastics pipework
• In transfer points for central water supply systems when
drainage is available
• If the downstream system includes appliances which must be
protected against dirt
EN0H-1141GE23 R1206 • Subject to change without notice
www.honeywell.com 3
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F76S-ZFA Reverse rinsing fine filter with flanges
4
Spare Parts
F76S-ZFA Fine Filters with Flanges
No. Description Dimension Part No.
1 Filter insert complete
Filter mesh 100 µm DN 125 AF76S-100A
Filter mesh 200 µm DN 125 AF76S-100D
Filter mesh 50 µm DN 125 AF76S-100C
2 Replacement sieve
Filter mesh 100 µm DN 125 ES76S-100A
Filter mesh 200 µm DN 125 ES76S-100D
1
1
Filter mesh 50 µm DN 125 ES76S-100C
Filter mesh 500 µm DN 125 ES76S-100F
3 Ball valve 5622100
2
4 Pressure gauge M76K-A16
0 - 16 bar
3
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-1141GE23 R1206
Subject to change without notice
© 2006 Honeywell GmbH
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