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Discuss Precharge in Shock Arrester in the Fittings & Pipes area at UKPlumbersForums.co.uk.

  1. joni os

    joni os Plumber

    Has anyone been able to accurately check pre-charge pressure in 0.16 litre shock arrester. The capacity is so small that using standard tyre gauge significantly reduces pressure when reading is taken. If using pump with gauge, again pressure is lost when detaching pump from valve. Charging to 7 bar in the hope that 3-4bar will remain does not satisfy my curiosity.
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