| Close the shut off valve (Ball valve) installed before PRV. |
| If not provided then close shut off valve installed at the |
| Start of down take on terrace (Or uptake line in case of hydro pneumatic system). |
| Open blanking plug with 'O' ring. |
| Allow residual water in line to empty out through the open port. |
| Thread-in
the pressure gauge in the ¼" BSP threaded port. (Ensure few turns of
Teflon tape on thread of pressure gauge for sealing), Do not tighten
completely. (to ensure removal of air) |
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| Turn on supply by opening the shut-off valve before PRV. |
| Allow some water to come out thru the threads of the pressure gauge (to ensure that air is removed). |
| Tighten pressure gauge completely using a spanner. |
| Ensure
that 'no flow' of water is there on outlet, as pressure checking /
setting has always to be done in 'static' or 'no-flow' condition. |
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