Goetze 9000 Manual De Instrucciones página 13

The direction of flow must match the arrow on the housing.
The installation position is arbitrary.
The pipeline must be carefully flushed through before the pressure reducer is ins-
talled, This ensures that the impurities being carried along by the medium cannot
impair the fault-free function.
The pressure gauge, optionally arranged on the back pressure side, enables the set
back pressure to be checked and is screwed to the threads provided by means of
sealing tape.
Attention!!!
Before the pressure reducer is commissioned, it must be ensured that the two
pressure gauge connections on the housing are sealed by means of pressure
gauges or sealing plugs.
The required back pressure is set by turning the adjustment knob at quiescent
pressure (zero consumption) (Fig. a).
There are 2 ways to do this:
1) Setting using an adjusting scale
The setting can be made without operating pressure! The adjusting scale, visible on
both side, indicates the required setting pressure.
Loosen the fixing screw, by 1/4 screw turn, on the adjustment knob (do not remove!)
by turning to the left. Turning the adjustment knob clockwise increases the back
pressure and turning anticlockwise reduces the back pressure. If necessary, check
the pressure using a pressure gauge. Now re-tighten the fixing screw.
2) Setting using a pressure gauge
The setting can be made only with operating pressure!
Shut off the water supply and relieve the valve on the outlet side, e.g. by drawing off
water, and make sure no further draw off is made. Loosen the fixing screw, by 1/4
screw turn, on the adjustment knob (do not remove!) by turning to the left.
If a setting below 3 bar (and/or the pre-setting) is required, turn the adjustment knob
to the left until the spring is completely relieved. Restore the water supply and turn
the adjustment knob to the right until the desired setpoint is reached. If a setting
above 3 bar (and/or the pre-setting) is required, restore the water supply immediately
and turn the adjustment knob to the right until the desired setpoint is reached.
When making the setting, bear in mind that the back pressure set for zero consump-
tion will drop further as water is drawn off due to pressure and friction losses. The
degree of drop will depend on the amount drawn off.
Assembly and maintenance instructions - 9000 / 9040 www.goetze-armaturen.de