Checking For Leaks - GOK EN 61-DS Montage- Und Bedienungsanleitung

Installation and operating instruction
Installation of an external thread G ¼ A LH - KN (45 ° inner taper) LH = COUNTERCLOCKWISE THREAD!
Subassembly Drawing of the connect-
ing element
Pressure
reducer
Connecting
screw joint
Tightening torque of 10 Nm
Mounting screw pipe connection with cutting ring
Subassembly Connecting element
Pressure Screw connector for an external
reducer diameter of the pipe ... mm
Connecting Stub pipes at outside
screw joint diameter... mm
Installation according to instructions GOK regarding screw pipe connection with cutting ring according to the
DIN 2353 standard and DIN EN ISO 8434-1 based on the DIN 3859-2 standard.
The website www.gok-online.de in the "Service" section for the downloadable version.
After the tightening of the union nut the pressure reducer valve cannot be rotated. Turning can lead to
leaking connections.

CHECKING FOR LEAKS

Before the first operation of the device with liquid gas it must be subjected to a leak check, also in case of cyl-
inder replacement and after a long non-operational period of the device. To do this, turn off all locking elements
of connected devices and open the cylinder or tank valve. Then check the tightness of all connections using a
leak detector or other suitable foaming agent. Leakage control is positive only when it receives the result of
"tight".
Low pressure reducer valve with a monometer version:
Open the cylinder valve. Set the red pointer by turning it to align with the black indicator (cylinder pressure indi-
cator) to determine the actual pressure in the cylinder. In the case of a monometer without the red indicator,
manually mark its position. Close the cylinder valve. Waiting time: 2 minutes, in order to equalise the tempera-
ture. Eventually, set the red pointer. Duration of control: 10 minutes. The indicated gas pressure cannot reduce
during the control period. If the pressure drops, check the tightness of the entire liquid gas system.
Do not use an open flame to check the sealing!
STARTING
The pressure reducer is ready for operation immediately after installation and following a successful LEAK
CHECK. Commissioning takes place through the opening of the cylinder valve or container with closed locking
elements of the connected device. Now the connected device can be operated as indicated in the manual ob-
serving applicable regulations for installation (e.g. TRF rules).
In the case of pressure reducer valves with safety relief valve in the event of pressure failure (SBS), press and
hold down the switching button until the pressure is equalized in the tubes (the time depends on the length of
the connected tubes) and then slowly release the switch. Now you can operate the connected device in ac-
cordance with the operating instructions.
HANDLING
LPG is a flammable gas! The relevant laws, regulations and technical rules must be ob-
served!
It is recommended that during the operation of the devices for liquefied gas at specified time in-
tervals, LEAK CHECK of the pressure reducer valve is conducted.
In the case of rising gas odour, leakage, escape of gas through the pressure relief valve PRV and connected
device fault TURN IT OFF IMMEDIATELY! It must be repaired by a specialised company.
Explanations
Pipe thread: cylindrical external thread G ¼ LH
(„Left Hand") n the tolerance class A according
to the standard DIN EN ISO 228-1 with 45 °
inner taper
Union nut with internal thread G ¼ LH according
to the DIN EN ISO 228-1standard, the end of the
hose with a sphere seal according to the DIN EN
560 standard
Explanations
screw pipe joint with cutting ring according to
DIN 2353 / DIN EN ISO 8434-1
① Precision steel tube, e.g. according to the DIN EN
10305-1standard
② Copper tubes, e.g. according to the DIN EN
1057standard: and not to TRF!
Issue 06.2010