SPIRALIS® safety valves by GMI.

Safety relief valves

The GMI safety relief valve automatically, and without the use of any energy other than that of the fluid concerned, discharges a quantity of fluid in order to prevent any overshoot of a predetermined safety pressure. It is designed to close and stop any further fluid flow after normal pressure operating conditions have been restored. The safety valve thus contributes to the safety of the installation by preventing any accidental pressure rise which would damage certain equipment such as: tanks, pipes, measuring instruments, etc.

SPIRALIS® Pipe outlet Safety Relief valves

pipe outlet safety relief valves with spring Construction : Pipe outlet safety relief valves springloaded
Design : Open cap or close cap, with or without lever
Materials : Bronze, Cast iron, Carbon steel, Stainless steel...
Seats : Metal to metal, Soft seats, PTFE...
Range for set pressure : 0,3 to 400bars
Sizes : Up DN8 to DN600
End connections : Threaded: BSP,NPT
Flanges
CLAMP
Optional : Hand lever, Bellows for back pressure...
According to ASME I, IV, VIII / API 526 ...

SPIRALIS® Free outlet Safety Relief valves

free outlet safety relief valves spingloaded Construction : free outlet safety relief valves spingloaded
Design : Open discharge
Materials : Bronze, Brass, Stainless steel...
Seats : Metal to metal, Soft seats, PTFE...
Range for set pressure : 0,3 to 150bars
Sizes : Up DN8 to DN50
End connections : Threaded: BSP, NPT
Optional : Hand lever
Safety relief valves for air and non dangerous fluid.

SPIRALIS® Vacuum and Pressure Relief Valves

vacuum and pressure relief valves Design : Pipe inlet or free inlet.
Pipe outlet or free outlet
Construction : Springloaded
Materials : Bronze, Brass, Stainless steel: 304-316, Special alloys...
Seats : Metal to metal, Soft seat, PTFE...
Range for set pressure : Pressure: 0,2 to 4bars
Vacuum: -0,01 to -0,05bar
Sizes : Up DN8 to DN50
End connections : Threaded BSP,NPT
Flanges
CLAMP

RESPI-SPIRALIS® Breather valves

Breather valves Function : -Breather valve with atmospheric intake and venting
-Breather valve with piped intake and atmospheric venting
-Breather valve with atmospheric intake and piped exhaust vent
Design : Vacuum relief valves, Pressure relief valves
Materials : Cast Aluminium, Cast iron, Carbon steel, Stainless steel...
Seats and pallets : AISI 304, AISI 316...
Range for set pressure : Pressure: 0,0025 to 3bars
Vacuum: -0,0025 to -0.8bar
Sizes : Up DN50 to DN300
End connections : Flanges: ANSI 150lbs, PN10, PN16
Our offer is drawn up to satisfy the specific operating conditions of your application. Our global offer is based on:
-The operation of the safety valves or discharge valves.
-The construction of the safety valves: open outlet or channelled outlet.
-Protection against overpressure or a fall in pressure.
-Operating pressure,
-Set pressure.
-Precision of adjustment,
-Operating temperature,
-Compatibility of the body and seal materials with the fluid being conveyed.
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