Underwater / Subsea Connectors for High-Pressure Mission-Critical Applications

Underwater connectors, custom high-pressure cable, Pressure Balanced Oil Filled (PBOF) assemblies, and connector terminations. Depth rated to 10,000 psi (700 BAR) for naval and defense, deep-sea oil and gas industry, pipeline inspection (PIG), and oceanographic applications. Also, downhole, high-pressure and above-deck shipboard interconnect solutions. Underwater dry-mate fiber optic and high-speed electric solutions with 10KPSI pressure ratings.

Underwater / Subsea Connectors and PBOF Assemblies for High-Pressure Mission-Critical Marine Applications

Glenair excels in the design and manufacture of high-pressure, underwater connectors and interconnect cable assemblies for electrical and fiber optic applications.

Their swivel-attachment equipped Pressure Balanced Oil Filled cable assemblies (PBOF) are revolutionary designs that solve a myriad of problems such as kinked and twisted hoses, leaky fittings, corroded hose clamps, and generally poor performance that characterize existing industry PBOF solutions.

Glenair manufactures several complete lines of oil-filled (PBOF) and depth-rated cable assemblies for deep-sea applications. Their engineering team is comprised of industry experts with extensive knowledge and experience in the subsea industry including submarines, ROV/AUV, seafloor operations, geophysical and pipeline inspection projects.

In addition to high-pressure underwater solutions, Glenair’s offerings extend to topside applications such as ATEX certified interconnects for explosion (EX) rated zones, a miniaturized connector for pipeline inspection, navy QPL optical and electrical interconnects, LSZH cabling and conduit solutions, and more.

Connectors are 100% inspected and tested in our state-of-the-art hydrostatic test lab via a formalized qualification test plan model that includes combined testing across pressure, durability, shock, salt spray corrosion as well as other stress factors.

Let’s take a look on the underwater solutions offered by Glenair:

SeaKing™ 700 Dry-Mate Underwater Connectors

SeaKing is an innovative underwater connector series that eliminates a broad range of mechanical design weaknesses found in many of today’s high-pressure subsea
connector families. From its double O-ring seals and retractable engaging nut to its multi-keyed mating interface, the SeaKing underwater connector represents a far more reliable approach to subsea power and signal connectivity.

Ideally suited for deepwater offshore oil & gas, military/defense, oceanographic research, and other harsh-environment subsea applications, the dry-mate connector series is built for optimal durability and reliability. Tested to 15,000 PSI (open face and mated), and equipped with integrated dual O-ring seals, marine bronze coupling nuts, corrosion-resistant stainless steel shells and high-pressure contact inserts with gold-plated signal contacts, special RF and fiber optic solutions, the Series 700 SeaKing is today’s most advanced high-density signal and standard-density power underwater connector.



SeaKing™ Junior – Series 701

High-density Series 701 SeaKing Junior connectors are the perfect choice for harsh environment oil & gas industry equipment. All designs are equipped with piston
seal nitrile O-rings to withstand exposure to corrosive chemicals and high-temperature environments.

These 10,000 psi pressure rated (mated condition) connectors feature high-density crimp-contact or solder cup inserts and are significantly smaller than our larger form-factor series 700 SeaKing interconnects.

Gold-plated crimp contacts accept #12–30 gauge wire. SeaKing Junior connectors are backfilled with epoxy potting compound, ready for easy incorporation into overmolded cables. Crimp-contact versions for field installation and repair are also available. SeaKing Junior is specifically designed for high-pressure, mated condition applications that do not require the extra fail-safe features and cost of an open-face rated solution.


SeaKing™ Fiber Optic

Data-intensive applications such as towed array sonar systems, well logging and monitoring equipment, digital seismic streamers, as well as magnetic flux leakage
and ultrasonic inspection sensors used in intelligent pipeline inspection are ideally suited for ruggedized high-pressure fiber optics.

Fiber optic interconnect systems deliver ultra-high data bandwidth, immunity from RFI and other forms of electromagnetic interference, as well as reduced size and weight compared to high-speed copper. Glenair’s SeaKing™ Fiber Optic solutions include harsh-environment overmolded cable assemblies, multibranch inside-the-box jumpers, as well as Glenair signature high-temp, high-vibration transceivers and optical-to-electrical media converters.

Pressure-balanced oil-filled (PBOF) cable assemblies are also available for deep subsea applications


SeaKing™ Power

Glenair’s SeaKing Power connector family is rated to 10K PSI in open-face or mated condition.

These high-voltage (1–3kV) and high-amperage (up to 350 Amps) solder cup contact connectors are ready for immediate deployment in overmolded or PBOF configurations for primary power junction applications. Test ports available upon request.

A range of shell sizes and contact inserts are available.




The SuperG55™ family of dry-mate underwater deep-sea, high-pressure connectors is a revolutionary new design of the popular industry-standard used in countless
ROV, underwater camera, diver communications, lights, pan and tilts, and other deep subsea applications.

Available in multiple shell sizes, the SuperG55™ is manufactured from 316L Stainless Steel with insert-molded contact assemblies designed for pressure-sealed applications up to 10K psi mated and unmated.

Intermateable and intermountable with other “55” series connectors, the Glenair solution introduces a long list of product innovations designed to improve performance and durability. Their PBOF versions, for example, utilize easy-to-assemble threaded fittings which deliver superior sealing performance while reducing installation

Other innovations include full-mate inspection ports, improved solder cup contact design, and more. Cable plugs and receptacles available in attachable versions as well as factory overmolded single-ended whips.



Micro-PSI : Microminiature high-pressure connectors and cables

The Series 707 Micro-PSI is an ultra miniaturized 10K PSI high-pressure, high-temperature interconnect designed specifically for pipeline inspection applications in Magnetic Flux Leakage and ultrasonic pipeline inspection PIGs.

The Micro-PSI insert arrangements feature two high-density micro TwistPin layouts for sensor applications and high-speed Gigabit Ethernet and a Coax contact layout for 5 GHz performance.

Micro-PSI connectors are supplied as discrete plugs or overmolded plug cordsets with rugged Viton or Polyurethane jacketing. Bulkhead and flange mount receptacles are 10K psi open-face pressure sealed, and incorporate fused vitreous glass inserts for <1X10-7 scc He/sec hermetic performance. Serviceable O-rings on plugs and dual-piston and face O-rings on receptacles provide high-reliability sealing.



Originally developed for petroleum pipeline inspection equipment, Series 802 connectors are available in ten sizes from 1 to 130 contacts and equipped with
Viton® O-rings to withstand exposure to corrosive chemicals and high-temperature environments.

These connectors feature high-density crimp Mighty Mouse inserts, 316 stainless steel or marine bronze shells, and a piston O–ring for hydrostatic sealing. Series 802 insulated wire, panel mount receptacles can be ordered as square flange, inline, or jam–nut versions.

Choose an integral shield termination platform or accessory thread for use with a variety of strain relief options. Crimp style gold–plated crimp contacts accept #12–30 wire. Connectors are backfilled with epoxy potting compound. Hermetic glass–sealed connectors come with solder cup contacts (non-removable) or PC tails. 100% tested to meet 1 x 10-7 cc/sec helium leakage. Open face pressure rating 3500 PSI.



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