Installation Position; Installation And Start-Up Instructions Of Regulator And Ssv - ITRON 133/233 Mode D'emploi

Installation
• Check that the maximum inlet pressure is not
higher than the design pressure of the regula-
tor .
• Regulator should be lifted only with belts
around the body .
• Arrange enough room for the serving of the
regulator .
Before installing the pressure regulator in the pip-
ing, the following must be checked:
• The upstream and downstream flanges must
be parallel so as to install the regulator without
undue stress .
• The upstream piping must be cleaned from all
impurities (sand, welding slag, etc .)
• The pressure regulator must not be visibly
damaged .
• The inlet and outlet chambers of the pressure
regulator must be perfectly clean .
• Make sure that the direction of gas flow corre-
sponds to the arrow on the pressure regulator
body .

Installation position

• The installation position is freely selectable .
Sensing line
• The sensing line isn't necessary of internal
pulse (< 4 .0 bar)
• For external pulse (> 4,0 bar), the sensing line
must be connected to a section reasonably
free from turbulences, preferably in a straight
section of the downstream piping (approx .
5D) .
• Connection: G1/2"/EO-12 (Regulator)
• Connection: G1/4"/EO-6 (SSV)
• Recommended pipe:
Ermeto-pipe EO-12 / -6, Steel, zinc protected
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Breathing line
• Breathing connection 133 G
• Breathing connection 233/ 243/ 244: G 1"
• To realize fast load changes of the regulator,
the following cross section of breathing line is
to observe:
• Up to 3 m breathing line, min . size DN 20;
• Longer than 3 m breathing line, size DN 25
or larger .
Start-up instructions
• To start-up the regulator after installation prop-
erly, proceed as follows:
• Check that the upstream- and downstream
valves are closed;
• Open the upstream valve slowly;
• Reset the shut-off valve (see also page 15);
• Check that the downstream pressure is rising
slowly on the downstream side manometer,
the downstream pressure should stop at the
closing pressure;
• Open the downstream valves slowly to control
the even flow .
Regulator- and SSV-set point
• The regulator is delivered according to the
specifications, specified in the purchase order .
If the adjusted outlet- / SSV shut off- pressure
is to be changed, proceed as follows:
• Increasing the outlet- / shut-off pres-
sure:
The adjusting screw is to turn clockwise;
• Decreasing the outlet- / shut-off pres-
The adjusting screw is to turn
sure:
anti-clockwise .
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