Tightening Torques - PIETRO FIORENTINI GOVERNOR 30051 Use And Maintenance Manual

Step Action
Checking the slam-shut device for tripping due to
maximum/minimum downstream pressure:
1. open the external pressure source by increasing the
pressure by approx. 2 mbar/s until the maximum
pressure lockout is triggered when the reset exten-
sion is triggered;
2. check that the tripping value of the slam-shut device
is ± 15% with respect to the value indicated on the
4c
nameplate applied (pdso);
3. reset the regulator lock;
4. close the external pressure source;
5. close the tap located upstream of the regulator;
6. open the tap of the external pressure source so that
the pressure decreases by approx 2 mbar/s.
7. check that the tripping value of the slam-shut device
is ± 15% with respect to the value indicated on the
nameplate applied (pdsu).
5 Disconnect the external pressure source outlet.
6 Close the downstream pressure outlet (Step 3).
7 Open the shut-off valve which was closed in Step 1.
8 Carry out commissioning as described in Section 7.4.
9 Check that there are no leaks at the shut-off pressure outlet in Step 6.
9.3 -

TIGHTENING TORQUES

NOTICE!
For the tightening torques of the swivel joints, refer to standards: NF E29-533: 2014 and NF E29-536: 2017.
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LOW-PRESSURE GAS REGULATOR | MAINTENANCE AND FUNCTIONAL CHECKS
Use, maintenance and warning instructions
Tab. 9.50.
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