G55 Gresswell Relief Valve
Email to a Friend

G55 Gresswell Relief Valve

Bronze safety relief valves - side outlet discharge with leak proof dome top.
These valves are commonly used for preventing a safe pressure being exceeded in pressurised systems. The lift is proportional to the system overpressure.

½” – 3” (DN15-DN80)
Maximum Pressure 21 bar g.

Metal (Viton or TFM on request)

Male Inlet x Female Outlet.
Standard valves are threaded BS 21:1985 Rp Parallel.
Alternative thread standards, i.e. taper or NPT are available upon request.
Flanged connections also available. Most flange standards can be accommodated.

Gresswell Valves are quality assurance approved to BS EN ISO 9001: 2000.
Full Cat IV PED approval.
Only 4 springs are needed to cover the full pressure range.
Clear operating and maintenance instructions are supplied with each despatch.
Screwed/Flanged or a combination of both are available as standard.
See Pdf: DC G55 & G90 for Discharge Capacities.

All Gresswell Relief Valves are given a hydraulic seat tightness test before leaving the factory and the adjustment range is clearly marked. All valves are supplied pre-set.
Flanged valves are pressure tested to ensure soundness of joints. Special tests or witness testing can be arranged at extra cost.

This product is normally on a 3 to 4 day delivery, please check with sales

Availability: In stock

FROM £77.52

Maximum number of characters: 4

* Required Fields

FROM £77.52