Installing The Pressure Connection - RMG USM GT400 Operating Manual

8 Installation

8.4 Installing the pressure connection

Malfunctions from too small pressure connections
128
The cylindrical diameter of the pressure connection must be selected as
≥3 mm according to ISO 17089.
The pressure connection can be equipped with a shut-off valve (1 and 2) or with-
out a shut-off valve (3 and 4). If the device is ordered without a shut-off valve, the
connection is provided with a union nut (clamping screw connection) or a female
thread.
Manual USM GT400 · EN10 · May 2021
1 USM up to DN150 with shut-off valve
2 USM from DN200 with shut-off valve
3 USM up to DN150 without shut-off valve
4 USM from DN200 without shut-off valve
Fig. 8.38: Device with and without a shut-off valve