Well Testing Flowheads

Product Features/Benefits

  • Incorporates industry-leading Magnum Gate Valves
  • Designed with ACME Threads to accommodate high tensile load capacity
  • API-17G analyzed ACME thread connections
  • API-17G Qualified swivel
  • Top handling sub compatible to standard elevator sizes
  • An oil or grease filled swivel assembly below the central body of the surface test tree enables tubing to rotate freely, providing a means to manipulate the tool string while the test tree remains stationary
  • Swivel also has lock pins that can be engaged to prevent it from rotating for transportation and rig up if desired
  • Allows rotation of platform connection to flowhead without rotating string below swivel
  • Hydraulically actuated, fail-safe close gate valve for use in well testing, perforating, and wireline operations offshore with fast closing time
  • Wireline Cutting Gate Valve is available to use when performing wireline operations on offshore platforms
  • Work platform provides easy access to handling sub
  • Removable crash frame included to provide protection for valves and actuators.
  • Flowhead is incorporated with hook points for co-flex hose on production and kill lines to reduce load on wings
  • In-house forging, casting and manufacturing enables complicated shapes and dimensions for blocks or any other components
  • Flowhead supplied with DNV certified  or non-certified basket for transport
  • Third-party inspections for flowhead and basket per customer requirement
  • Global aftermarket presence
  • Recertification available on site at a customer facility or at a WOM facility


  • Pressures ranges from 5,000 psi to 20,000 psi
  • Size ranges from 2-1/16-in. to 7-3/8-in.
  • Main bore loaded connections are available in ACME threaded or Flange connections
  • Material Class suitable for standard service to High H2S & CO2 including DD to HH-NL
  • Temperature class ranges from L to X (–50°F to 350°F [–46°C to 180°C)
  • Product specification level: PSL 1 or 3G
  • Overlay options are available
  • Variety of crossovers options available at production and kill lines
  • Compliance with API specification 6A/ISO 10423, API specification 17G/ISO 13628-7, Norsok
  • Surface flow tree and swivel qualified per API-17G/ISO 13628-7
  • API 6A monogrammed components
  • Third-party certification
  • Variety of override options for valves are available, i.e.,  manual, hydraulic etc.
  • Option of wireline cutting valve available
  • Supplied with DNVGL-ST-E271 certified basket and slings
  • Options include: standard or custom configurations, instrumentation for pressure readings, ports for glycol injections, various structural components to operate chokes and valves, etc.


  • Onshore and offshore well testing
  • Well intervention work such as slickline and coiled tubing
  • Reservoir clean up
  • Subsea installation completion
  • Well stimulation

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