Product Handbook 2026 - Volume 1

Boiler house Steam injectors

2

Local regulations may restrict the use of this product to below the conditions quoted. In the interests of development and improvement of the product, we reserve the right to change the specification without notice. © Copyright 2019

TI-P409-04 EMM Issue 4

WG2 Water Level Gauge

• Simple gauge glass for low pressure duties • Recommended for boiler feedtank applications • Available in lengths up to 2 200 mm • Supplied in modular form for maximum versatility

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Description The Spirax Sarco WG2 level gauge enables an instant visual check to be made of liquid level in tanks and process vessels. It consists of a glass tube (plastic also available) mounted in top and bottom support arms, with packing seals and washers to prevent leakage and accommodate expansion. The bottom arm incorporates a three port plug cock to allow isolation and checking of gauge operation. An intermediate arm provides additional support and sealing for gauges with centres longer than 1100 mm, and enables two unequal length tubes to be used together to give a wide choice of overall lengths. Two protector rods mounted either side of the tube reduce the risk of accidental damage. For greater protection 'C' section protectors are also available (used with rods). Limiting conditions Glass Plastic tube Maximum working pressure (Pmax) 6.9 bar g 2.0 bar g Maximum working temperature (Tmax) 152 °C 134 °C Maximum saturated steam conditions 4.1 bar g 2.0 bar g Cold hydraulic test pressure 13.8 bar g 3.0 bar g

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