The M90 range of auto change-over regulators is designed specifically for the situation where the primary gas supply is a liquid vessel (eg. PLC, FLC) and an emergency reserve supply is from one or more high-pressure cylinders. When the gas supply in the vessel is exhausted, the cylinder supply automatically takes oversupplying the pipeline system. Once the vessel is re-filled it automatically resets the regulator and takes over as the primary supply source. The vessel used with an M90 regulator must be of the regulated outlet pressure type.
The M90 features two inlet gauges indicating supply in gas cylinders at all times as well as a large easy to read pipeline pressure gauge. It also has a pressure relief valve on the primary regulators and a connection port for a change-over alarm.
Specifications:
| Max. Cylinder Inlet Pressure: | 20,000 kPa @ 15˚ C |
| Vessel Inlet Pressure: | 1,250 kPa Minimum, 2500 kPa Maximum |
| Outlet Pressures: | up to 800 kPa |
| Flow Capacity: | see flow curves |
| Outlet Connection: | 1/4” NPT female |
| Header Connections: | 3/8” BSP RH for non flammable gases |
| Weight: | 3.7 kg |
| Dimensions: | 210mm x 155mm x 195mm |
Materials:
| Body: | Chrome plated brass bar stock and diecast bonnets |
| Fittings: | Brass and chrome plate brass |
| Diaphragms: | Neoprene, PTFE coated neoprene, EPDM or STST
(according to model and gas) |
| Seats: | PCTFE |
| Filters: | Cupro Nickel |
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