RV181
Check valve
Brass
Product specification sheet
Application
The check valve is a safety device in accordance with
DIN EN 1717 to protect systems against back pressure, back
flow and back syphonage of non-potable water into service pipe,
plants and equipments.
Special Features
• KIWA approved
• Optimal protection of the drinking water supply
• Compact construction
• Corrosion resistant by use of brass and stainless steel
• Universal application
• Low pressure loss
• Quiet operation
• Creates no shock pressure loadings
• No spare parts
• Meets KTW recommendations for drinking water
Construction
The check valve comprises:
•Housing
• Connections (Design A,B and K)
• Check valve insert (DVGW-approved)
• Test plugs with sealing ring
Materials
• Dezincification resistant brass housing
• High grade synthetic material check valve cartridge
• Stainless spring steel closing spring
• Test plugs in high grade synthetic material
• NBR seal ring
Range of Application
Medium Water
Liquid category 2 (no hazardous materials))
Technical Data
Installation position horizontal pipework with test plugs direc-
ted downwards
Operating pressure max. 16 bar
Operating temperature
Connection size
Typical Applications
Check valves of this type are priority suitable for domestic drinking water supply.
The check valve can be used for commercial and industrial applications in consideration of its specifications.
Check valves must be fitted,
• if service pipe, plant and equipment must be protected
against back pressure, back flow and back syphonage of
non-potable water.
max. 70°C (short term 90°C)
1
/2“ to 2“ (threaded and soldering connections)
ø15 and ø22 (compression connection)
EN0H-1228GE23 R1005 y Subject to change without notice
www.honeywell.com 1
RV181 Check valve
RV181-...A
DN
RV181-...B
Method of Operation
RV181-...K
The check valve protected the service pipe.
Spring loaded check valves have a moving seal disc which is lifted off the seat by a greater or lesser amount depending on the
ø
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
L
l
2
l
check valves be regularly checked and maintained (as specified
in EN 1717).
3
Options
RV181-...A = Soldering connection
RV181-...B = Threaded connection
RV181-...K = Compression connection
R
Connection size
L
l
1
Connection size R 1/2" 3/4" 1" 11/4" 11/2" 2"
DN 15 20 25 32 40 50
RV181-...K ø 15 22 ----
Weight RV181-...A ca. kg 0,3 0,45 0,78 1,17 1,75 2,65
RV181-...B 0,24 0,35 0,67 0,95 1,52 2,27
RV181-...K 0,16 0,21 ---Test an drain plug G 1/4" 1/4" 1/4" 1/4" 1/4" 1/4"
Dimensions mm
L 66778090100115
l
1
l
2
l
3
k
-value 6,01015284170
vs
Installation Example
137 156 169 185 202 241
97 120 128 148 166 199
90 90
Installation Guidelines
• In a drinking water supply the check valves are fitted immediately after the water meter.
o This position ensures optimum protection for the drinking
water supply.
• Install in horizontal pipework with test plugs directed downwards.
o This position ensures optimum protection efficiency.
4
6
8
2
bar
0
10
o This position is best for testing the valve
• Shut off valves should be fitted on each side of the check valve.
o Shut off valves enables fast testing
• The installation location should be protected against frost
and be easily accessible
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-1228GE23 R0106
Subject to change
© 2005 Honeywell GmbH