part no.
51 641 50 c
15 / 16
REPLACEMENT
If there is any sign of wear or if the product or parts thereof are damaged, it must be replaced.
When the product has been replaced, observe the steps ASSEMBLY, LEAK TESTING and
START-UP.
To ensure that the installation works faultlessly under normal operating conditions, it is
recommended that you replace the device within 10 years of the date of manufacture.
In commercial applications, according to DGUV regulation 79, parts of consumer
units that are subject to wear and ageing
*
must be replaced after 8 years. This does not apply
if the proper condition has been confirmed by an expert.
*
System parts that are subject to wear or ageing are, for example, membranes, automatic
and manual changeover valves, pressure regulators, hoses assemblies.
Product damaged due to flooding!
This causes corrosion and malfunctions to the pressure regulator.
Replace the pressure regulator following flooding!
RESTORATION
If the actions described in TROUBLESHOOTING do not lead to a proper restart and if there is
no dimensioning problem, the product must be sent to the manufacturer to be checked. Our
warranty does not apply in cases of unauthorised interference.
SHUT-DOWN
Close the gas supply and then the shut-off fittings of the connected loads. When the LPG
system is not in use, all valves must remain closed.
Close all free connections in the feed lines of the LPG system tightly with a suitable cap to
prevent gas from flowing out.
DISPOSAL
To protect the environment, our products may not be disposed of along with
household waste.
The product must be disposed of via a local collection station or a recycling station.
TECHNICAL DATA
Inlet pressure p
0.5 to 2.5 bar, 0.5 to 10 bar; 1.5 to 10 bar
Outlet pressure p
d
optionally
29 or 50 mbar
Nominal flow rate M
g
4, 6 or 12 kg/h
Maximum permissible pressure
PS 16 bar
Ambient temperature
-20 °C to +50 °C
maximum permitted pressure drop
in downstream installation
∆P2 for p
d
29 mbar
∆P5 for p
d
p
d
50 mbar
Nominal response pressure
PRV: 120 mbar
Refer to the type label of the pressure regulator for more technical data and special
settings!
Low pressure regulator type NDR 0516