Publicité
Les langues disponibles
Les langues disponibles
Installation Procedure
(A). Remove protective covers from inlet and outlet
of regulator. Both regulator and tubing must be
clean in order to avoid damage.
(B). Install the regulator on to the pipe, making sure
that arrow on the body fits with the direction of
flow.
(C). Connect control lines of regulator and shut-
off valve to a turbulence- free zone on to the
down stream pipe. A manometer should also
be con nected downstream the regulator. It
may be necessary to install larger diameter
pipe on the downstream side to limit the flow
velocity.
(D). Check all connections between regulator,
safety shut-off valve and pipe for tightness. If
soap so lutions are used for checking, dry regulator
thor oughly.
(E). For setting the downstream pressure turn clock
wise or anticlockwise direction the screw on the
top of the pilot.
Caution: in addition, the regulator must be installed
according to good engineering practice. The installa tion
must also comply with national and/or interna tional
standards.
Start- up Instructions
Caution: before start-up, the installation must be checked for
leaks.
To start-up the regulator properly, proceed as follows
according to the installation scheme shown
below:
(1) check that the upstream and downstream valves and
the bleed cock are closed;
(2) if the apparatus is fitted with the shut-off valve, the
shut-off valve must be closed; After verifying
the above mentioned points, proceed as follows:
Installation Scheme
24
A) open the upstream stop valve (1) slowly and just
(
enough to ensure a very small flow of gas;
check the upstream pressure gauge (2);
(B) reset the shut-off valve (see section „Resetting of
the shut-off valve");
(C) check that the downstream pressure is rising slowly
on the downstream manometer (7 or
10) : the downstream pressure should stop at the set
pressure value or on a value a little higher;
(D) when the upstream pressure is also stabilized, slowly
open the upstream stop valve (1) to a full open
position;
(E) then slowly open the downstream 1 1 valve (8 or 1 1)
or;
At this point the regulator is in operation. Like wise
the process can be followed for the instal lation of a
monitor regulator in line with the regulator (see
installation scheme), keeping in mind that the
manometer (7) installed be tween the regulators has
to indicate the same,
or little higher, pressure value as the upstream
manometer.
Maintenance
Maintenance is extremely dependent on the qual ity of
the gas used (humidity, impurities, gasoline) and the
efficiency of the filter used upstream of the regulator: it is
recommended to install upstream of the regulator a filter,
which traps solid and liquid particles present in the fluid
that would otherwise impair the proper functioning of
the apparatus. De pending on the gas moisture content,
contamina tion and chemical composition, occasional
clean ing may be required.
Caution: before any service operation, be sure that upstream
stop valve is closed and the gas installa tion is de-pressurized.
Item Description
1
Upstream Stop valve
2
Manometer
3
Pilot Regulator Monitor
(Shut-off Valve: Pilot Regulator)
4
Monitor Regulator
(Shut-off Valve: Regulator)
5
Shut-off Device
7
Manometer
8
Pilot Regulator (Shut-off Valve:
Downstream Stop valve)
9
Regulator
10
Manometer
1 1
Downstream Stop valve
Publicité
