WOM Subsea is specialized in providing custom-engineered subea solutions to WOM clients around the globe
WOM Subsea has recently expanded its operations to a 10,000 sq ft highbay which allows for up to 3 Subsea Intervention Systems to be worked on Simultaneously
WOM Subsea's operations are closely integrated with the established infrastructure which WOM has built over yhe past 40 years
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13 5/8-10K Wellhead / XT (H4 Connector)

Worldwide Oil Machinery (WOM) developed a Wellhead/ XT connector (H4) Connector.


  • Used with WOM’s Intervention Riser System
  • 18 ¾-10K H4 Hub with 13 5/8-10K API Flanged Top
  • Suitable for Water depth of 1000 ft. (~ 300 m)
  • 18 ¾ VX / MVX Metal Gasket Compatible
  • Hydraulic actuated Secondary Lock Mechanism
  • Design Verified by DNV-GL

Industry Standards

API 6A /ISO 10423 Specification for Wellhead and Christmas Tree Equipment (Latest Edition) 21st Edition October 2010
API 17D /ISO 13628-4 Specification for Subsea Wellhead & Christmas Tree Equipment (Latest Edition) 2nd  Edition May 2011
API17G /ISO 13628-7 Petroleum and natural gas industries- Design and operation of Subsea production systems-part 7: Completion / work over riser system 2nd  Edition July 2006
SAE AS4059 Aerospace Fluid Power – Cleanliness Classification for Hydraulic Fluid (Latest Edition) AS4059F September 2013
NACE MR0175 /ISO 15156 Petroleum and natural gas industries- Materials for use in H2S-containing environments in oil and gas production 2nd  Edition July 2006
DNVGL-OS-E101 Offshore standards, Drilling facilities January 2018

Operating Specification

Maximum working pressure 10,000 Psi
Maximum Test pressure 15,000 Psi                
Temperature Rating P+U
Min. Design Temperature -20° F
Max. Design Temperature 250° F
Nominal bore size 7 3/8”
Drift Dia. 7.345 +.027/-.000
PSL Level PSL-3G
PR Level 2
Upper Connection 13-5/8-10K API Studded Flange BX-159 Ring Gasket 9.5” Seal-sub pocket
Lower Connection 18- ¾ -10 K H4 hub
Water depth 10,000 FT (Based upon loading)
Service Condition H2S per NACE MR 01-75
API Monogram No

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