Gauge Root Valve Bleed Valve with Vent Screw – 6000 PSI – ASME B16.34 / ISO 9001 / PED / ATEX
Gauge Root Valve
Also known as:
Gauge Isolation Valve


Gauge Root Valve Bleed Valve with Vent Screw – 6000 PSI – ASME B16.34 / ISO 9001 / PED / ATEX
Gauge Root Valve
Also known as:
Gauge Isolation ValveBuy
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This Gauge Root Valve Bleed Valve with Vent Screw is designed to safely release pressure from the system. It is ideal for controlling and isolating gauge instruments while preventing leaks and ensuring reliable operation.Sign in
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Executive Summary
This Gauge Root Valve Bleed Valve with Vent Screw is used in oil and gas applications to safely release trapped pressure from gauges and instruments. The vent screw allows controlled venting, preventing overpressure, ensuring accurate readings, and protecting sensitive equipment. It provides operators with a simple, reliable way to isolate and relieve pressure during maintenance or monitoring, improving safety and operational efficiency on site.
Technical Specifications
Standard Working Pressure | 6000 PSI |
Maximum Working Pressure | Up to 10000 PSI on request |
Temperature Rating | -50°C to 230°C (500°C with graphite) |
Material Body | ASTM A479 Gr. 316 |
Packing | Below stem threads, easily adjustable gland retainer |
Vent Tube | SS 316 |
Handle | SS 316 |
Back Top Screw | SS 316 |
Dust Protection | Stem dust cap included |
Quality Certifications | ISO 9001:2015, PED 2014/68/EU, ATEX 2014/34/EU |
Features and Benefits
- Metal to metal body and bonnet seal ensures leak free operation.
- Vent tube with handle provides safe pressure release away from operator.
- Backseat stem prevents leakage when valve is fully open.
- Handle allows easy manual operation for isolating and venting.
- Heat code traceability confirms material and quality.
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Detailed Description
The Gauge Root Valve Bleed Valve with Vent Screw is designed for oil and gas applications where controlled pressure release is critical. It is installed on pressure gauges and instrumentation lines to provide a safe and easy way to vent trapped pressure. The vent screw allows operators to gradually release pressure without removing the valve, reducing the risk of sudden pressure surges that could damage equipment or compromise safety.
This valve is rated for 6000 PSI standard working pressure, with higher pressures available on request. It is built to ASME B16.34 standards and produced under ISO 9001, PED, and ATEX quality systems, ensuring reliability and compliance with industry requirements. The design includes a metal-to-metal seal for high-pressure and temperature applications, a durable vent screw that prevents leakage, and easy operation even in confined spaces. Its construction allows for long-term durability and minimal maintenance, providing safe and accurate operation for critical oil and gas instrumentation systems.
Engineering Data

