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IMI Maxseal
L08 - Spring Loaded Maintaining Valve
Manually adjustable pressure maintaining valve for precise inlet control in gas systems.
Delivers fast, accurate control of upstream pressure in compressed gas systems.
Supports high-pressure applications up to 420 barg with bubble-tight shut-off.
Offers tamperproof, manually adjustable operation in a compact, rugged design.
Features
The L08 is a compact, spring-loaded pressure maintaining valve from the IMI Thompson Valves product range. Designed for accurate control of inlet pressure in gas systems, it maintains a set upstream pressure through manual adjustment. With a 5 mm seat and tamperproof design, it delivers reliable performance in compressor discharge, filter systems, dryers, and overpressure control. It supports inlet pressures up to 420 barg and control ranges from 10 to 400 barg, with bubble-tight shut-off as standard. Available in stainless steel or aluminium, it suits low, medium, and high-pressure applications across industrial gas systems.
Key features
Inlet pressure: up to 420 barg
Control ranges: 10–400 barg
Bubble-tight shut-off
Port size: ½" ISO G or NPT
5 mm valve seat
Body: stainless steel or aluminium
Seat: PEEK
Elastomers: NBR, FPM, or EPDM
Temp range: -40°C to +150°C
Weight: 2.5–3.1 kg
Specifications
Fluid Types
Gas
Ambient Temperature (°C)
-30 to 150
Seal Material
NBR
FPM
EPDM
Body Material
Stainless Steel 316
Aluminium
Port Size (")
0.5 to 0.5
Maximum Working Pressure (barg)
420
Maximum Set Pressure (barg)
400
Loading
Spring Loaded
Type
Back Pressure Regulator