METALOK INDUSTRIES

GAUGE VALVE - 1

GAUGE VALVE - 1

A Gauge Valve – 1 is a compact and essential valve used primarily for isolating pressure gauges, pressure transmitters, or pressure switches from a process system. It allows the user to easily connect or disconnect the instrument for maintenance or calibration without disrupting the process or depressurizing the entire system. GV1 type typically refers to a single-isolation gauge valve configuration, commonly used in general industrial, petrochemical, and instrumentation applications.The GV1 is designed with a single shut-off mechanism and comes in various connection types, such as 1/4″ or 1/2″ NPT male/female, and may be equipped with features such as vent ports or bleed plugs. The valve is often installed between the pressure instrument and the process line.

  • Single isolation valve design (GV1): Simplifies the connection between the gauge and process.
  • Compact and robust body: Suitable for high-pressure, industrial environments.
  • Variety of end connections: Typically 1/4” or 1/2” NPT male/female, BSP, or compression fitting.
  • Soft or metal seat options: For tight shut-off and compatibility with different media.
  • Vent or bleed screw optional: Enables safe pressure release during maintenance.
  • Enables safe gauge installation and removal without system shutdown.
  • Prevents gauge damage by isolating it from process pressure during surges or maintenance.
  • Improves operational safety by allowing controlled venting of trapped pressure.
  • Reduces downtime during instrument servicing or calibration.
  • Compact and economical solution for pressure measurement systems.
Part NumberEnd ConnectionSQ
(mm)
L
(mm)
Open
(mm)
Orifice
(mm)
Cv
InletOutlet
GV1-8N-MF1/2″ 1/2″329078.55
GV1-12N-8N-MF3/4″1/2″329078.55
GV1-M20-MFM20M20327578.55

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