OEM Parts & Custom Solutions

Comprehensive Hydraulic Coupling Inventory

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Legasea maintains extensive inventory of subsea hydraulic couplings and couplers, supporting critical offshore operations with reliable quick-connect hydraulic solutions. Our comprehensive range includes original equipment manufacturer (OEM) parts, compatible replacements, and fully refurbished coupling systems for immediate deployment.

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Original Equipment Manufacturer Parts & Components

OEM Hydraulic Coupling Supply

 

Legasea sources authentic parts from leading subsea equipment manufacturers:

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• Beattie Hydraulic Couplings - Complete range of Beattie subsea coupling systems

• Hunting / National Couplers - Hunting hydraulic interface solutions and components

• Aker Solutions / Subsea Components /  Ferranti Couplings - Aker subsea coupling systems and spare parts

• Parker / Snaptite Couplings - Parker hydraulic coupling systems and components

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Component Parts and Spares

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Comprehensive inventory of hydraulic coupling components:

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• Coupling Bodies - Main housing assemblies for hydraulic couplers

• Sealing Elements - O-rings, gaskets, and dynamic seals

• Locking Mechanisms - Mechanical coupling engagement systems

• Spring Components - Coupling actuation and retention springs

• Wear Parts - Replaceable wear components for extended service life

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Obsolete Parts Design & Manufacturing

Custom Replacement Component Solutions

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When original parts become obsolete, Legasea designs and manufactures fully compatible replacement components:

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Reverse Engineering Services

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• Dimensional Analysis - Precise measurement and specification development

• Material Analysis - Metallurgical analysis for material specification

• Performance Testing - Validation of replacement component performance

• Compatibility Verification - Ensuring seamless integration with existing systems

• Documentation Services - Complete technical documentation packages

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Advanced Manufacturing Capabilities

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• CNC Machining - Precision component manufacturing to exact specifications

• Material Selection - Marine-grade materials for subsea applications

• Quality Control - Comprehensive inspection and testing procedures

• Batch Production - Cost-effective production for multiple units

• Express Manufacturing - Rapid production for emergency requirements

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Complete Refurbishment Services

Hydraulic Coupling Restoration

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Legasea provides comprehensive refurbishment services for existing hydraulic couplings:

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Seal Replacement Services

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• Dynamic Seal Replacement - High-performance seals for moving components

• Static Seal Replacement - O-ring and gasket replacement for leak prevention

• Custom Seal Solutions - Bespoke sealing solutions for unique applications

• Seal Material Upgrades - Enhanced materials for improved performance

• Seal System Testing - Verification of sealing performance post-replacement

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Hydrostatic Pressure Testing

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• Design Pressure Testing - Testing to original equipment specifications

• Proof Pressure Testing - Enhanced pressure testing for safety verification

• Leak Testing - Comprehensive leak detection and verification

• Cycle Testing - Repeated operation testing for reliability verification

• Documentation - Complete test certificates and performance records

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Hydraulic Coupling Applications

Flying Lead Plate Couplings

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Specialised couplings for flexible hydraulic connections:

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• Multi-Circuit Flying Leads - Multiple hydraulic circuit quick connections

• Emergency Flying Leads - Rapid deployment hydraulic connections

• Intervention Flying Leads - Specialised couplings for workover operations

• Manifold Flying Leads - Distribution system flexible connections

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Control Module Plate Couplings

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Hydraulic interface solutions for subsea control systems:

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• SCM Interface Plates - Subsea Control Module hydraulic connections

• Pilot Control Connections - Low-pressure pilot hydraulic couplings

• Emergency Shut-Down Plates - Safety system hydraulic interfaces

• Multi-Function Control Plates - Integrated hydraulic control interfaces

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Auxiliary Intervention Plate Systems

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Specialised couplings for intervention operations:

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• Workover Intervention Plates - Hydraulic connections for workover systems

• Coiled Tubing Plates - Specialised couplings for coiled tubing operations

• Snubbing Operation Plates - High-pressure couplings for snubbing systems

• Emergency Intervention Plates - Rapid deployment intervention couplings

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Diver Mateable Coupling Applications

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Manual operation couplings designed for diver installation:

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• Diver-Operated Couplings - Manual engagement hydraulic couplers

• Visual Alignment Systems - Diver-friendly alignment and engagement features

• Safety Lock Mechanisms - Secure locking systems for diver safety

• Ergonomic Design - Diver-friendly operation in heavy diving equipment

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Subsea Tree Hydraulic Couplings

Production Tree Interface Systems

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Hydraulic couplings for subsea tree operations:

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• Tree Cap Couplings - Hydraulic connections for tree cap systems

• Choke Valve Couplings - Hydraulic actuator connections for choke control

• Gate Valve Couplings - Hydraulic connections for gate valve operation

• Safety Valve Couplings - Emergency shut-off valve hydraulic interfaces

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Christmas Tree Control Systems

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• Master Valve Couplings - Primary isolation valve hydraulic connections

• Wing Valve Couplings - Production valve hydraulic control interfaces

• Annulus Valve Couplings - Annulus isolation valve connections

• Kill Line Couplings - Emergency kill line hydraulic interfaces

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BOP Fluid Line Couplings

Blowout Preventer Hydraulic Systems

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Specialised couplings for BOP hydraulic control:

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• Ram BOP Couplings - Hydraulic connections for ram-type BOPs

• Annular BOP Couplings - Hydraulic interfaces for annular preventers

• Accumulator Couplings - High-pressure accumulator connections

• Emergency BOP Couplings - Rapid connection emergency BOP systems

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BOP Stack Interface Systems

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• LMRP Couplings - Lower Marine Riser Package hydraulic connections

• Choke and Kill Couplings - Emergency circulation system couplings

• Flex Joint Couplings - Riser flex joint hydraulic connections

• Diverter Couplings - Surface diverter system hydraulic interfaces

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Tubing Hanger Penetrator Couplings

Wellhead Penetrator Systems

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Hydraulic couplings for tubing hanger interfaces:

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• Tubing Hanger Couplings - Direct hydraulic connections to tubing hangers

• Penetrator Seal Couplings - Sealing system hydraulic connections

• Mandrel Couplings - Tubing mandrel hydraulic interface systems

• Bypass Couplings - Alternative flow path hydraulic connections

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Chemical Injection System Couplings

Production Enhancement Couplings

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Hydraulic couplings for chemical injection systems:

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• Methanol Injection Couplings - Hydrate inhibition system connections

• Corrosion Inhibitor Couplings - Pipeline protection chemical systems

• Scale Inhibitor Couplings - Production enhancement chemical injection

• Biocide Injection Couplings - Microbial control system connections

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Multi-Chemical Distribution Systems

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• Manifold Distribution Couplings - Multi-chemical distribution systems

• Dosing System Couplings - Precision chemical dosing connections

• Emergency Chemical Couplings - Rapid deployment chemical systems

• Batch Chemical Couplings - Batch treatment system connections

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Installation & Workover Control System Couplings

Installation Support Couplings

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Hydraulic connections for equipment installation:

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• Lifting System Couplings - Subsea lifting equipment hydraulic connections

• Alignment System Couplings - Equipment positioning hydraulic systems

• Stabbing System Couplings - Precise positioning hydraulic connections

• Foundation System Couplings - Subsea foundation installation couplings

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Workover Operation Couplings

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Specialised couplings for well intervention:

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• Workover Riser Couplings - Riser system hydraulic connections

• Completion Tool Couplings - Downhole tool hydraulic interfaces

• Packer System Couplings - Well packer hydraulic control connections

• Perforation System Couplings - Well perforation equipment couplings

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ROV Hot Stab Systems

Remote Operated Vehicle Interface Couplings

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ROV-compatible hydraulic quick connections:

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• Standard Hot Stabs - Industry-standard ROV hydraulic interfaces

• High-Pressure Hot Stabs - Enhanced pressure rating ROV couplings

• Multi-Circuit Hot Stabs - Multiple hydraulic circuit ROV connections

• Emergency Hot Stabs - Rapid deployment ROV hydraulic systems

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ROV Tool Interface Systems

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• Hydraulic Tool Couplings - ROV-operated hydraulic tool connections

• Actuator Interface Couplings - ROV hydraulic actuator connections

• Pump Interface Couplings - ROV-operated pump hydraulic connections

• Emergency Tool Couplings - Emergency ROV tool hydraulic interfaces

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Advanced Coupling Technologies

High-Pressure Coupling Systems

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Specialised couplings for extreme pressure applications:

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• Ultra-High Pressure Couplings - Ratings up to 15,000 psi (1,034 bar)

• Burst Pressure Safety - Enhanced safety factors for critical applications

• Pressure Surge Protection - Couplings designed for pressure spike resistance

• Fatigue Resistant Design - Enhanced durability for cyclic pressure applications

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Coupling Performance Specifications

Pressure Ratings

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Comprehensive pressure rating capabilities:

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• Low Pressure Systems - Up to 1,500 psi (103 bar)

• Medium Pressure Systems - 1,500 to 5,000 psi (103 to 345 bar)

• High Pressure Systems - 5,000 to 10,000 psi (345 to 690 bar)

• Ultra-High Pressure Systems - Above 10,000 psi (690 bar)

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Flow Rate Capabilities

 

Optimised flow characteristics:

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• High Flow Couplings - Minimised pressure drop design

• Laminar Flow Design - Reduced turbulence and pressure loss

• Variable Flow Couplings - Adjustable flow restriction capabilities

• Bi-Directional Flow - Full flow capability in both directions

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Temperature Performance

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Extended temperature range capabilities:

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• Arctic Applications - Low temperature performance to -40°C

• High Temperature Service - Performance up to 150°C

• Thermal Shock Resistance - Rapid temperature change capability

• Thermal Expansion Compensation - Design accommodation for thermal growth

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Quality Assurance and Testing

Comprehensive Testing Protocols

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Rigorous testing ensures coupling reliability:

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• Factory Acceptance Testing - Complete pre-delivery testing

• Pressure Cycle Testing - Fatigue testing for extended service life

• Environmental Testing - Corrosion and material compatibility testing

• Performance Validation - Flow rate and pressure drop verification

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Certification and Documentation

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Complete certification packages:

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• Material Certificates - Full material traceability documentation

• Test Certificates - Comprehensive testing result documentation

• Quality Certificates - ISO 9001 quality system certification

• Performance Reports - Detailed performance characteristic documentation

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Emergency Response Services

Rapid Deployment Solutions

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Emergency coupling services for critical operations:

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• 24/7 Emergency Support - Round-the-clock technical assistance

• Express Manufacturing - Rapid production for emergency requirements

• Global Logistics - Worldwide emergency parts delivery

• Technical Support - On-site technical assistance and installation support

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Learn More: 

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Stab Plates