Installation Position; Start Up- Instructions - Dresser Rr 16 Bedienungsanleitung

Installation
• Check that the maximum inlet pressure is not
higher than the design pressure of the regulator .
• 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 im-
purities (sand, welding slag, etc . )
• The pressure regulator must not be visibly dam-
aged .
• The inlet and outlet chambers of the pressure reg-
ulator must be perfectly clean .
• Make sure that the direction of gas flow corre-
sponds to the arrow on the pressure regulator
body .

Installation position

• For ease of operation, we recommend performing
installation with the valve body in horizontal align-
ment, with actuator upwards .
Sensing line
• The sensing line must be connected to a section
reasonably free from turbulences, preferably in a
straight section of the downstream piping (ap-
prox . 5D) .
• Connection: G / "/EO 12 (Regulator)
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• Connection: G / "/EO 6 (SSV)
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• Recommended pipe:
Ermeto-pipe EO-12 / -6, Steel, zinc protected
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Breathing line
• Breathing connection G
• To realize fast load changes of the regulator, the fol-
lowing cross sections of breathing line are to ob-
serve:
• 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 properly,
proceed as follows:
• (1) Check that the upstream- and downstream
valves are closed;
• (2) If the regulator is fitted with the shut-off valve,
the shut-off valve must be closed;
• (3)Open the upstream valve;
• (4) Reset the shut-off valve slowly and check that
the downstream pressure is rising slowly on the
downstream side manometer . The downstream
pressure should stop at the closing pressure (see
also page 29 to 32);
• (5) Open the downstream valves slowly to control
the even flow .
Regulator- and SSV-set point
• The regulator is delivered according to the speci-
fications, 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 pressure:
The adjusting screw is to turn clockwise;
• Decreasing the outlet- / shut off-pressure:
The adjusting screw is to turn anti-clockwise
/ "
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