Wellhead Gauge and Bleed Valves

Wellhead Gauge and Bleed Valves to 20,000 psi (1379 bar) for Sour Service.


Since 1945 Parker Autoclave Engineers has designed and built premium quality valves, fittings and tubing. Parker Autoclave Engineers 30GV-SOG valves are built to operate safely and reliably to 20,000 psi (1379 bar). They are designed for sour service and comply with NACE, MRO175.

Image shown: 30GV gauge valve with 30BV bleed valve attached.



  • Tubing sizes are 3/8" and 9/16"

  • One inlet and three outlet ports, all 9/16" ports are API test and gauge connection ports

  • Non-rotating stem design prevents stem/seat galling

  • Metal-to-metal seating for bubble-tight shut-off

  • Bleed valve is one piece hex construction allowing easy installation

  • Anti-blowout stem design


Parker Autoclave Engineers wellhead gauge valves are ideal for instrument calibration and process sampling. The main applications are found in oil and gas drilling, and production, but other markets use these as well. Standard components are offered for normal field service where H2S is not present and type "SOG" for service where H2S is present. Parker Autoclave Engineers type SOG components are available with standard API test and gauge connection (Parker Autoclave Engineers F562C).

Wellhead Gauge and Bleed Valves