Pressure relief valve (PRV) option
The pressure relief valve (PRV) is an automatic safety device with limited flow that is installed
in the pressure regulator to protect connected devices against inadmissible high pressures. If
there is inadmissible high pressure at the outlet side, for example due to high temperatures,
the PRV opens and relieves the excess pressure through the breather. When the pressure
falls, the PRV closes again automatically.
A connection to the open air must be created if a pressure regulator with PRV is to be
operated indoors, inside a housing or in any other areas that could be at risk.
"PRV" is marked on the type label of the pressure regulator.
FCONNECTIONS
Screw connections
If connections leak, there is a danger of explosion, fire or suffocation!
Gas may escape if the product is turned.
Do not turn the product after it has been installed and the connections have been
tightened.
Tighten connections only when they are not pressurised.
Inlet,
Outlet,
optional
Connections could become leaky, if they are contaminated or corrupted
Therefore, the connections must regularly be checked for leak-tightness. Swap the product
where appropriate.
Keep all connections free from contamination, even small amounts of dirt can cause
connections to leak.
ASSEMBLY
Before assembly, check that the product is complete and has not suffered any damage during
transport.
ASSEMBLY must be carried out by a specialised company.
See USER QUALIFICATION!
The specialised company and the operator must observe, comply with and understand all of
the following instructions in this assembly and operating manual. For the system to function
as intended, it must be installed professionally in compliance with the technical rules
applicable to the planning, construction and operation of the entire system.
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Trading name and dimensions
acc. to standard
Combination soft (Komb.W)
• with gasket and 5-wing coupling nut
• G.19 = thread W 21.8 x 1/14 lh nut
Trading name and dimensions
acc. to standard
Ball-cone connector
• H.4 = Thread G 1/4-LH-KN
Ball-cone connector
• H.6 = Thread G 3/8 lh M
Caramatic Basic Two
Installation notes
Tighten by hand!
Installation notes
Torques: G 1/4 =
10Nm
Torque:
G 3/8 = 15 Nm
part no. 02 018 51c