Controllable anti-pollution check valve EA type,
add-on for pressure reducing valves and filters
Construction
The check valve comprises:
• Check valve insert
• Union nut with internal thread
• Male threaded union with flat wrench faces
• Test plug with seal ring
Materials
• Brass union and nut
• NBR seal ring
• High grade synthetic material check valve cartridge
• NBR lip seal ring
• High quality synthetic material test plug
RV277
Product specification sheet
Application
Check valves of this type are particularly suitable for integral use
with pressure reducing valves, filters and filter combinations of all
types.
Check valves are safety devices for independent prevention of
water backflow, for example from drinking water appliances back
into the central water supply system.
They can also be used for industrial, commercial and similar systems where back pressure, back flow and back syphonage
must be prevented.
The classicfications of appliances to meet these requirements
are specified in EN 1717.
Special Features
• DIN/DVGW-approved
• Universal application
• Easy installation
• Quiet operation
• Create no shock pressure loadings
• Meets KTW recommendations for potable water
• Suitable for installation in any position
•Low pressure loss
Range of Application
Medium Water
Max. inlet pressure 25.0 bar
Technical Data
Operating temperature
Operating pressure approx. 0.01 bar
Connection size Male threaded union 1/2“ - 2“
max. 70°C
Female threaded union 1“ - 2
1
/2“
EN0H-1200GE23 R0206 y Subject to change without notice
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RV277 Controllable anti-pollution check valve EA type,
Method of Operation
Spring loaded check valves have a moving seal disc which is lifted off the seat by a greater or lesser amount depending on the
flow rate through the valve. If the flow falls towards zero, then the
spring pushes the disc back onto the seat and seals the waterway.
To ensure continuing correct function it is recommended that
check valves be regularly checked and maintained (as specified
in EN 1717).
Options
RV277-... A = Standard version
Special Versions available on request
Connection size
Connection size R
1
/2"*
Nominal size diameter G 1" 1" 1
3
/4"1"1
1
/4"1
1
/4"1
1
/4"2“2
1
/2"2"
1
/2"
Weight approx. kg 0.20 0.22 0.35 0.52 0.86 1.56
Dimensions mm
L69 7482,594103,5121
l57 6369,580 90106
Test and drain plug R
-value m3/h6 1015284170
k
vs
Nominal flow rate in m
3
/h
1
/4"
1.8 3.8 5.8 10.8 15.9 27.1
1
/4"
1
/4"
1
/4"
1
/4"
1
/4"
at ∆p = 0,15 bar
DIN/DVGW Approval No. NW - 6312 AS 2269
* not suitable for D06F-1/2A
6 www.honeywell.com
EN0H-1200GE23 R0206 y Subject to change without notice
Installation Example
RV277 Controllable anti-pollution check valve EA type,
Installation Guidelines
• Install in horizontal pipework with test and drain plug downwards
o This position is best for draining
• Install shutoff valves
o Shutoff valves provide optimal serviceability
• Ensure good access
o Simplifies maintenance and inspection
Flow Diagram
Typical Applications
Check valves of this type are suitable for use as a safety device
on water installations as specified in EN 1717.
They can also be used within the scope of their specification.
The following are some typical applications:
• In central water supply systems
• After a water meter
• As a safety device up to liquid category 2 of EN 1717
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RV277 Controllable anti-pollution check valve EA type,
Spare Parts
Inlet check valve RV277, from 1994 onwards
No. Description Dimension Part No.
3
c Union seal washer
/4" 0901444
(10 pcs.) 1" 0901445
11/4" 0901446
1
/2" 0901447
1
2" 0901448
d Blanking plug all S06K-1/4
1
with O-ring R
/4"
(5 pcs.)
e Check valve cartridge
1
/2" 2166200
3
/4" 2110200
1" 2164400
1
/4" 2164500
1
11/2" 2164600
2" 2164700
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-1200GE23 R0206
Subject to change
© 2006 Honeywell GmbH
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