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Product
Double Block & Bleed Gauge Valves
For gauges, switches and pressure transmitters: two valves with a single outlet, combining isolation, calibration and venting.

Instrumentation Valves
Double Block & Bleed Gauge Valves
Double Block & Bleed Gauge Valves are compact, integrated instrumentation valves designed to provide dual isolation and controlled bleeding of process media from pressure gauges and instruments. The two independent isolation barriers enhance system safety and allow the instrument to be isolated for maintenance, calibration, or replacement without disturbing the main process line.
- Max working pressure
- up to 6000 psig
- Body materials
- A 105, SS 304, SS 316, Monel, Hastelloy
- Thread systems
- NPT, BSPP, BSPT, SW
Features
- Integrated double block and bleed configuration.
- Two independent isolation valves for enhanced safety.
- Dedicated bleed/vent valve for controlled pressure release.
- Compact, space-saving design.
- Bubble-tight shut-off for reliable isolation.
- Available with various end connections and configurations.
- Suitable for high-pressure and high-temperature applications.
- Various materials of construction available.
- Factory pressure and leakage tested.
- Suitable for direct mounting to pressure gauges and transmitters.
Applications
- Pressure gauges and transmitters.
- Process instrumentation systems.
- Oil & gas and petrochemical plants.
- Chemical and power industries.
- High-pressure process and instrumentation lines.
- Tube OD range
- 1/4 in, 1/2 in, 3/4 in
- Size range
- 1/4 in, 1/2 in, 3/4 in
- Max working pressure
- up to 6000 psig
- Thread systems
- NPT, BSPP, BSPT, SW
- Body materials
- A 105, SS 304, SS 316, Monel, Hastelloy
- Temperature
- -29°C to +204°C
- Testing
- Every valve is tested before despatch, with complete component traceability
A 105
on requestSupplied with EN 10204 3.1 material certification and heat-code traceability to the melt.
SS 304
on requestSupplied with EN 10204 3.1 material certification and heat-code traceability to the melt.
SS 316
standardSupplied with EN 10204 3.1 material certification and heat-code traceability to the melt.
Monel
on requestSupplied with EN 10204 3.1 material certification and heat-code traceability to the melt.
Hastelloy
on requestSupplied with EN 10204 3.1 material certification and heat-code traceability to the melt.
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