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Gresswell G90 LG2 Bronze Proportional Lift Pressure Relief Valve
G90 Bronze safety relief valves – side outlet discharge with lifting lever:
These valves are commonly used for preventing a safe pressure being exceeded in pressurised systems. The lift is proportional to the system overpressure. Particularly suitable for most liquid applications where a ‘small’ discharge often prevents the safe pressure in a system being exceeded. Also suitable for steam, gases & vapour applications where a low discharge is suitable.
In Stock
Description
Features & Benefits
- Quality assurance approved to BS EN ISO 9001:2015 and manufactured in accordance with BS EN ISO 4126-1 & BS 6759
- Full Cat IV PED approval
- Only 4 springs needed to cover the full pressure range
- Clear operating and maintenance instructions supplied with each despatch
- Screwed, flanged or a combination of both available as standard
- See data sheets for discharge capacities
Applications
- Vented and unvented systems
- Liquid pump relief, pipeline and vessel protection
- Steam boiler, pipeline and vessel protection
- Compressor, pipeline and receiver protection
Specification
| Size Range | DN15–DN80 (½” – 3”) |
| Pressure Range | 0.5 Bar.g (7 PSI) to 20.7 Bar.g (300 PSI) |
| Pipe Connections | Male Inlet x Female Outlet |
| Inlet | Threaded ‘G’ BSP Male to BS EN ISO 228 / BS 2779 |
| Outlet | Threaded ‘Rp’ Parallel Female to BS 21 / BS EN 10226 / ISO 7 |
| Flow Substance | Liquid, Steam, Gas |
Alternative thread standards (BSPT or NPT) available on request. Flanged connections also available – most flange standards can be accommodated.
