MQC Stab plates are fitted with multiple hydraulic or chemical couplers that enable transfer of a variety of fluids between subsea systems such as trees and manifolds. Manufactured in male and female pairs, each MQC plate is designed specific for the application.

Our MQC stab plates are fitted with our hydraulic and chemical couplers that enable a compact, lightweight design that is easy to handle and quick to install – reducing subsea operation and installation time.

The Stab Plate is designed to handle rough connection operations, pull-in force and can be installed with an angular misalignment of 20 degrees. The plate can be populated with up to 18 couplers, depending on Coupler size.

With all critical locking system elements and seals located in the flying MQC plate, should any damage occur, the plate can be easily retrieved, repaired or replaced without requiring interfering with the subsea asset. The plate is fitted with a secondary release mechanism for added redundancy.

A full range of parking positions, test and flushing as well as pressure caps, bridging plates and protective covers are available.

Technical Details:

Gripping: Engineered central locking system
Sealing: see “Hydraulic and chemical Couplers”
Configuration: Fitting, extended tubing for welding, steel or thermoplastic flying lead
Material: Couplers: Nitronic 50 HS (ASTM A479 Gr. XM-19)
  Structure: UNS S32750
Range: 1/4″ to 1″ couplers, up to 19pc
Pressure rating: 15,000psi
Installation: ROV operated, API 17D class 4 ROV bucket
Certification: API 17D, API 6A

Features and Benefits:

  • Modular design that allows mix of all coupler sizes
  • Used for high flow and high-pressure lines of chemical injection or hydraulic fluids
  • Can also be delivered with pressure compensated couplers
  • Robust but accurate design guarantees no installation damage to couplers
  • Simple ROV operation
  • MQC can be delivered with any tubing interface or as complete jumper with steel or thermoplastic flying lead