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Gresswell G55 Bronze Proportional Lift Pressure Relief Valve

  • Gresswell G55 Pressure Relief Valve 
  • Proportional Lift
  • Bronze Body
  • Metal, PTFE or Viton seat
  • Sizes 1/2" to 3"
  • Pressure range: 0.5 - 20.7 Bar
From £64.60
SKU: RV4298 Availability: Available
Metal Seat (High Temperature)
PTFE Seat (Low Temperature Liquids and Gases)
Viton Seat (Low Temperature Liquids and Gases)
0.5 - 3.5 Bar
3.5 - 10.4 Bar
10.4 - 20.7 Bar
0.5 - 2 Bar
2 - 8.3 Bar
8.3 - 17.9 Bar
17.9 - 20.7 Bar
0.5 - 2 Bar
2 - 8.3 Bar
8.3 - 17.9 Bar
17.9 - 20.7 Bar
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Gresswell G55 Bronze Proportional Lift Pressure Relief Valve

Gresswell's G55 Bronze Proportional Lift Pressure Relief Valve is suitable for liquid, steam and gas; used to prevent safe pressure being exceeded in pressurised systems, with the lift being 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 and steam, gas and vapour applications where a low discharge is suitable.

Typical applications include: vented / unvented systems, steam boilers, pump, pipeline and vessel protection.

Key features:

  • Available in sizes: 1/2" to 3" (subject to configuration).
  • Temperature range: -10°C to 200°C (Viton) and -10°C to 225°C (Metal and PTFE).
  • Pressure range: 0.5 to 20.7 Bar.
  • Full Cat IV PED approval.

Gresswell Valves are quality assurance approved to BS EN ISO 9001: 2008 and manufactured in accordance with BS EN ISO 4126-1 & BS6759.

Download our technical PDF datasheet here

More Information
Type Pressure Relief
Design Proportional Lift
Set Pressure Range 0.5 - 20.7 bar
Size 1/2" (DN15), 3/4" (DN20), 1" (DN25), 1 1/4" (DN32), 1 1/2" (DN40), 2" (DN50), 2 1/2" (DN65), 3" (DN80)
End Connection BSP
Body Material Bronze
Industry / Approvals Steam
Head Type Dome
Manufacturer Gresswell

The following downloads are available for the Gresswell G55 Bronze Proportional Lift Pressure Relief Valve:

Gresswell G55 Bronze Proportional Lift Pressure Relief Valve Datasheet

From £64.60
SKU: RV4298 Availability: Available