Phenolic Case & Stainless Steel Internals Model 1221

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. Although 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.

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Solid Front Safety Pattern Gauge
(Weatherproof Construction to IP65)

4½” (115mm)

Case/ Bezel
Moulded Fibreglass / Phenolic
Full Safety Pattern Construction
Threaded Fibreglass / Polycarbonate Window Ring
Elastometer with integral O’ Ring Seal
Polopropylene with Reinforced Fibreglass Blow-Out Back

Socket & Bourdon Tube
316 Stainless Steel

Stainless Steel Construction

Blowout Protection
S3 Baffle wall with blow-out backplate

White Anodised Aluminium (Black Printing)

Black Aluminium

Laminated Safety glass

All instruments are individually calibrated and have an unique Serial Number


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