Gas and Steam in excess of 25 Bar pressure can represent danger if there is a rupture in the Bourdon Tube measuring this gas. To minimize the danger, gauges in this application should be Safety Pattern type, having solid front between Bourdon tube and dial, safety window and blow-out back to allow any blast to release to the rear of gauge.
Athough there is not necessarily any great risk in the use of gauges for gases at pressure less than 25 Bar, a blow-out disc should be incorporated and the purchaser should have regard to the nature of the gas and the installation conditions and, if necessary, order a gauge of the Safety Pattern type.
Surface mounted gauges should be ﬁtted with distance pieces of not less that 3/4" (20mm) long to allow them to be mounted away from wall or panel.
AISI 304 Stainless Steel
Solid front between bourdon tube & dial
Bezel Polished Stainless Steel (Bayonet type)
Weatherproof Construction to IP66 Ingress Protection rating
Socket + Element
AISI 316 Stainless Steel
Pressure Connection Thread
⅛”, ¼”, ⅜”, ½” NPT, BSP, BSPT
Top Mounted Rubber Disk
White Aluminium (Black Printing)
Laminated Safety Glass
63, 100, 150mm (2.½”, 4”, 6”)
63, 100 & 150mm ± 1% of span
Vacuum to 1,400 bar (20,000 psi) (63mm gauge)
Vacuum to 2,500 bar (36,000 psi) (100 & 150mm gauges)