SKU: FGX

Stainless Steel Closed Cap Pressure Relief Valve

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The FGX Series of Pressure Relief Valves are a 316 Stainless Steel Closed Cap style valve with 316 Stainless Steel Entry and Internals. The Reinforced PTFE seat with 316 Stainless Steel internals gives this relief valve a wide range of applications. These valves are available as BSP threaded with outlet ports being 1" BSP threaded regardless of inlet size. The relieving pressure is easily adjustable by turning up or down the setting nut under the top cap. Closed Cap relief valves are generally preferred for liquid applications and where the media needs to be contained within the valve. Please note this relief valve is for general applications only and not intended for use as a Safety Relief Valve.

Model Inlet Size Outlet Size Temperature Range
FGX04 1/2" BSPT 1" BSP -20°C to 180°C
FGX05 3/4" BSPT 1" BSP -20°C to 180°C
FGX06 1" BSPT 1" BSP -20°C to 180°C

Capacity charts for the above models can be found here for the following Applications:   Steam        Air        Water

Stainless Steel Closed Cap Pressure Relief Valve

Model Inlet Size (P1) Outlet Size (P2) Lift L1 L2 H
FGX04 1/2" BSPT 1" BSP 0.5 41.5 65 175
FGX05 3/4" BSPT 1" BSP 0.75 41.5 66 176
FGX06 1" BSPT 1" BSP 0.9 41.5 71 180
FGX07 1-1/4" BSPT 2" BSP 0.75 68 96 293
FGX08 1-1/2" BSPT 2" BSP 0.98 68 96 293
FGX09 2" BSPT 2" BSP 1.26 68 102 299

All dimensions in mm unless shown otherwise. 

Stainless Steel Closed Cap Pressure Relief Valve

Number Name Material
1 Body 316 Stainless Steel
2 Seat 316 Stainless Steel
3 Spindle 316 Stainless Steel
4 Spring Seat 316 Stainless Steel/RPTFE
5 Disc 316 Stainless Steel
6 Cap 316 Stainless Steel
7 Spring 316 Stainless Steel
8 Nut 316 Stainless Steel
9 Adjusting Screw 316 Stainless Steel

Size 1/2" to 2" BSP
Body 316 Stainless Steel
Seat 316 Stainless Steel & RPTFE
Pressure Range  2 to 20 Bar
Temperature -20°C to 180°C
Feature Closed Cap

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