Test points are one of the most innocuous pieces of equipment that escape notice. It is a very small adaptor or fitting that is fixed downstream of the regulator. The sole purpose of a test point is ensuring gas flow is at a reduced pressure and the regulator is operating to specifications. Test point inlet connects directly onto the regulator while the outlet is a flared end with a flare nut to ensure a tight seal. Test points have replacement brass screws and nipples. Test points connected to a gas-testing gauge gives readings of pressure. A qualified gas technician carries a gas-testing gauge… He connects the gauge to the test point. Prior to a test, the gauge is set to zero and gas cock or firesafe control valve opened. The value on the gauge will indicate standing pressure of the gas flow. Similarly, test points fitted before an appliance can also indicate the gas flow pressure to the appliance. Calibration of gas meters and appliance ensure the following
- gas flow metering is based on actual consumption
- you pay for what you use
- appliance efficiency is optimal
- zero wastage of gas
- overall fuel efficiency and cost control
Gas tightness testing is another test performed via test points. Connect testing gauge after the gas meter. Open the meter control valve until the pressure on the test gauge is reading 10mbar. Close the valve and wait for one minute. Observe the test gauge. The level should be constant. If there is a fall in the level of the test gauge, it will indicate fall in gas pressure indicating a leak.
The supplier of test points at www.gasequipmentdirect.com is the best resource for test points online purchase and information. Experienced staff in their help desk can answer any query related to LPG and natural gas components.
Gas Equipment Direct 