Gauge Root Valve – Male x Female – Lagging Extension – 1/4”, 1/2”, 3/4” – 6000 PSI – ASME B16.34 / ISO 9001 / PED / ATEX

Gauge Root Valve

Also known as:

Gauge Isolation Valve

Gauge Root Valve – Male x Female – Lagging Extension – 1/4”, 1/2”, 3/4” – 6000 PSI – ASME B16.34 / ISO 9001 / PED / ATEX

Gauge Root Valve

Also known as:

Gauge Isolation Valve

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6 - 8 Weeks

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Gauge Root Valve Male x Female with Lagging Extension provides reliable flow control and isolation for pressure gauges and instrumentation. It is designed for easy installation and use in high pressure applications up to 6000 PSI.

Executive Summary

The Gauge Root Valve Male x Female with Lagging Extension is designed to provide precise control of pressure measurement while allowing safe and easy operation even when the connected piping is insulated.

The lagging extension raises the valve handle above the pipe insulation, ensuring accessibility without compromising the insulation’s effectiveness. This type of valve is ideal for applications in industrial, chemical, and oil and gas systems where temperature-controlled or insulated pipelines are common.

Technical Specifications

Connection Type Male x Female
Standard Working Pressure 6000 PSI
Maximum Working Pressure Up to 10000 PSI on request
Packing Below stem threads, easily adjustable gland retainer
Standards Compliance ASME B16.34, ASME B31.3, MSS-SP-99
Seal Type Metal-to-metal body bonnet seal
Handle Removable T-handle for low torque operation
Quality Certifications ISO 9001:2015, PED 2014/68/EU, ATEX 2014/34/EU
Temperature Rating -50°C to 230°C (500°C with graphite)
Dust Protection Stem dust cap included

Features and Benefits

  • Metal-to-metal body bonnet seal.
  • Dust cap protects stem and prevents contamination.
  • Self-centering, non-rotating tip ensures consistent leak-free shutoff.
  • Lagging extension allows valve operation without removing pipeline insulation.
  • Back-seated stem provides added security.

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Detailed Description

The Gauge Root Valve Male x Female with Lagging Extension is designed for controlling and isolating pressure instruments on pipelines where insulation is applied. The lagging extension allows the valve handle to extend above the insulation, ensuring operators can access and operate the valve safely without removing or damaging the insulation. This design maintains the integrity of the insulated pipeline while providing reliable valve operation.

The valve is manufactured to ASME B16.34 standards and meets ISO 9001, PED, and ATEX requirements, ensuring quality and compliance for industrial and oil and gas applications. It is rated for a standard working pressure of 6000 PSI and can be supplied for higher pressures upon request. The temperature range of the valve spans from -50°C to 230°C, with higher temperature options available with graphite sealing. A metal-to-metal body bonnet seal provides high-pressure and high-temperature sealing without the need for O-rings.

The valve features a back-seated stem for added security, a self-centering non-rotating tip for consistent shutoff, and a simple adjustable gland retainer for stable packing. The rolled stem threads and mirror-finished stem through the packing allow smooth operation, reduce packing wear, and provide long-lasting performance. The removable “T” handle and dust cap on the stem further enhance ease of use and protection.

This valve is particularly suitable for applications where pipelines are insulated, allowing for accurate gauge measurement, safe operation, and minimal disruption to insulation.

Engineering Data