Honeywell GmbH
6
MU1H-1203GE23 R0914
GB
1. Safety Guidelines
1. Follow the installation instructions.
2. Use the appliance
• according to its intended use
• in good condition
• with due regard to safety and risk of danger.
3. Note that the appliance is exclusively for use in the appli-
cations detailed in these installation instructions. Any
other use will not be considered to comply with require-
ments and would invalidate the warranty.
4. Please take note that any assembly, commissioning,
servicing and adjustment work may only be carried out by
authorized persons.
5. Immediately rectify any malfunctions which may influence
safety.
2. Description of function
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 speci-
fied in EN 1717).
3. Application
4. Technical data
5. Scope of delivery
The check valve comprises:
• Housing with flanges
• Housing end casing with flanges
• Test and drain plugs
• Disc and disc guide
• Spring
• Disc lip seal ring
6. Options
7. Assembly
7.1. Installations Guidelines
• Install in horizontal pipework with test and drain plugs
downwards
- This position is best for draining
• Install shutoff valves
- Shutoff valves provide optimal serviceability
• Ensure good access
- Simplifies maintenance and inspection
• Install right after water meter if applicable
- Protects against backflow from water systems
7.2. Assembly instructions
1. Thoroughly flush pipework
2. Close shutoff valve on inlet
3. Release pressure on outlet side (e.g. through water tap)
4. Close shutoff valve on outlet
5. Install check valve
• Note flow direction
• Install without tension or bending stresses
6. Slowly open shut off valves on inlet and outlet
Medium
Drinking water
Inlet pressure
max. 16.0 bar
Operating temperature 65 °C
Opening pressure
approx. 0.05 bar
Connection size
DN40 - DN300
RV283P-... A = With drilled flanges, PN16, ISO 7005-2,
EN 1092-1, DN40 - DN300,
EPDM lip seal ring
Connection size