The cover must be fitted prior to assembly of gauge and regulator.
Inner and outer rubber surfaces are profiled for improved rigidity. The tyre-like shape with open back retains performance of a pressure vent at the back of the gauge case and also facilitates to use the same style for both, radial and back entry pressure gauges.
63, 80 and 100 mm
- blue (for oxygen service)
- red (for acetylene service and general applications) only NS 63