9
Dival SQD-1 - MT 234-E - 02-2020
EN
INSTALLATION
2.0 2.0 INSTALLATION
2.1 GENERAL
Pressure regulator does not require any supplementary upstream safety accessory for protection against overpressu
-
re compared with its design pressure PS, when upstream reducing station is sized for a max downstream incidental
pressure
MI Pd ≤ 1,1 PS.
Before installing the regulator it is necessary to ensure that:
- The regulator can be inserted in the space provided and that subsequent maintenance operations will be sufficien
-
tly practicable (see overall dimensions in Fig. 3);
- Inlet and outlet pipings must be at the same level and able to carry the weight of the regulator (see Fig. 3);
- The inlet/outlet flanges of the piping are 90°l;
- The inlet/outlet flanges of the regulator are clean and the regulator itself has not been subject to damage during
transport;
- The piping upstream has been cleaned to expel residual impurities such as welding scale, sand, paint residues,
water, etc.
The usually foreseen arrangement is the one indicated in figure 4.
16
1,
3
12
4,
3
46
0
259
330,5
160
Pressure regulators without slam-shuth:
Kg.13
Pressure regulators with slam-shut:
Kg. 14
Overall dimensions and weights:
Fig. 3
