Due to an XRA overpressure option, a gauge can withstand up to 400 percent overpressure without damage. This can eliminate the need for an external pressure-limiting valve, says the manufacturer.

Available for Ashcroft’s T6500 stainless steel, solid-front pressure gauge, the option adds an overpressure mechanism that restricts the motion of the Bourdon tube after the specified full-scale value is reached. This is useful in applications where pressure spikes and water hammer are a threat.