Subsea Distribution systems provide the communication and control between subsea and topside equipment via umbilical networks. As the governing control that makes subsea production possible, our Subsea Distribution Systems are designed in such a way that safety, environmental protection, flow assurance and reliability are key to our design philosophy.

Product Description
Our Heavy Duty (HD) Connectors enable the quick, secure and permanent connection of a hydraulic or chemical control lines between subsea infrastructure.
Integrating our hydraulic and chemical couplers in an adaptable locking system enables a field proven system that allows for a high degree of misalignment during mating. This makes installation both quicker, easier and improves the general reliability.
The inboard section fitted to the subsea infrastructure is the male coupler. The outboard (flying) section is the female that contains the sealing elements. This makes change out, maintenance and repair incredibly easy.
Our robust design is to accommodate rough handling and to ensure a system that reduces both the risk of connection failure and reduces installation time. We offer a full range of parking positions, test and flushing as well as pressure compensated caps and protective caps.
Heavy Duty (HD) ROV Connectors
Supplied in 4 sizes: 1.5in (HD1.5), 2in (HD2), 3in (HD3) and 4in (HD4)
15,000psi maximum working pressure
Suitable for application in up to 3000m water depth
Triple seal philosophy; a spring energized c-seal as the primary process seal and two heavy duty elastomer T-seals as secondary and seawater barriers
Product Name | HD1.5 | HD2 | HD3 | HD4 |
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Connector Size | 1.5” | 2” | 3” | 4” |
Max. Working Pressure | 15,000psi | 10,000psi | 10,000psi | 10,000psi |
Max. Water Depth | 3000m | 3000m | 3000m | 3000m |
Number of Full Pressure Cycles | 10,000 | 10,000 | 10,000 | 10,000 |
Mass (Male/ Female) | 22 kg/ 32.7 kg | 22 kg/ 32.7 kg | 61.7 kg/ 93.1 kg | 114 kg/ 170 kg |
Weight in Air (Male/ Female) | 216 N/ 321 N (22 kgf/ 32.7 kgf) | 216 N/ 321 N (22 kgf/ 32.7 kgf) | 605 N/ 913 N (61.7 kgf/ 93.1 kgf) | 1118 N/ 1668 N (114 kgf/ 170 kgf) |
Weight in seawater (Male/ Female) | 188 N/ 244 N (19.2 kgf/ 24.9 kgf) | 188 N/ 244 N (19.2 kgf/ 24.9 kgf) | 525 N / 689 N (53.6 kgf/ 70.3 kgf) | 971 N/ 1449 N (99 kgf/ 147.7 kgf) |
Design Codes and Specifications | |
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For all HD Series: | ISO 10423 (API 6A) // ISO 13628-4 (API 17D) // PSL 3G (API 6A, API 17D) |