These Secc Midline Weak Link's (MLWL) are new/unused surplus.

It is a high-integrity, pressure-balanced emergency disconnect system designed to provide critical protection in subsea fluid transfer operations. Positioned midway along the fluid conduit, the MLWL automatically seals both ends upon separation, preventing uncontrolled fluid release into the marine environment and safeguarding both personnel and equipment from dangerous loads.

This unit offers operators a cost-effective solution for enhancing subsea safety while maintaining full compliance with industry standards (API 6A & 17D).

Designed for 25 years of service life, they feature a passive operational profile, dual-seal self-sealing technology, and customizable break load thresholds to suit project requirements.

Key Specifications:

• Coupling Type: Valved MLWL Connector (10,000 psi or 15,000 psi rating)
• Coupling Size: 2” NB (approx. 47–50.8 mm)
• Flow Path: Full bore HIGHFLOW 90° elbow
• Operational Mode: Passive emergency breakaway
• Break Load: 0.25 to 5 tonnes (adjustable tension pin system)
• Orientation: Horizontal or vertical installation
• End Constraint: Floating tension pin assembly
• Spill Volume: ~4 litres
• Pressure Rating: Either 10,000 psi or 15,000 psi
• Max Operating Depth: 10,000 ft (3,048 m)
• Temperature Range: 0°C to +60°C
• Performance: Max Bending Moment 1.4 kNm, Max Torque 2.25 kNm
• Dimensions (Connected): ~1150 mm (L) x 212–224 mm (W) x 334–339 mm (D)
• Dimensions (Disconnected): ~1450 mm (L) x 212–224 mm (W) x 334–339 mm (D)
• Weight in Air: 140 kg (10,000 psi unit) / 167 kg (15,000 psi unit)
• Connections: Grayloc B20 Hub (other options available: Techlok, API Flange, Hammer Unions)
• Materials: Super Duplex 32760 body & sleeves, Inconel 718 probes, 316 Stainless non-pressure parts, HNBR/FKM/FFKM seals, A4 SS fasteners
• Design Codes: API 6A & 17D, PSL 3 PR2 (PSL 3G on request)
• Compliance: API FF or HH per NACE MR0175, ISO 9001:2015 QA
• Testing: API 6A PR2 & PSL 3 (pressure, ultrasonic, MPI, dye penetrant, hardness, impact, corrosion)

Applications: Subsea fluid transfer systems, offshore drilling and production operations requiring safe emergency disconnect capability.

Advantages: Minimizes environmental risk, protects equipment, reduces downtime, and ensures compliance with offshore safety standards.