Quick Release Hooks (QRH)

Your Modern Mooring Systems Partner

Quick Release Hooks (QRH) by Glen Engineering

Quick Release Hooks (QRH) are a vital necessity for safe and efficient jetty mooring operations, particularly at terminals handling and transporting Liquified Natural Gas (LNG), Liquified Petroleum Gas (LPG), chemicals, oil and coal.

Quick Release Hooks (QRH) are a necessity for today’s mooring systems. Glen’s QRHs enable mooring lines to be secured quickly and safely. OUR QRH’s are easily released even when loaded to their safe max working limit. 

Failing mooring lines, failing hooks or structural failure are all too common hazards which can create considerable damage to ships and berths, and disrupt operations – so too great and too expensive a risk to be ignored.

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LR Certified

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Quick Release Mooring Hook Image Gallery

Images by Glen Engineering © 2021

How We Assure Safety and Quality For All Quick Release Hooks

Mooring lines must be able to be safely secured, and quickly  and easily released, even when working to a large load limit. By combining Safe Working Load (SWL), material and configuration data with Glen’s highly flexible IntMoor QRH products, Glen’s Quick Release Hook systems provide a trusted, high quality mooring solution for port owner, port operators and consulting engineers.

The Complete QRH Solution For Modern Mooring Systems

From port owners and operators to consulting engineers, Glen works with closely with customers to determine best fit solutions for their marine applications. We provided full integrated QRH solutions that combines project consultation, system design, QRH manufacturing and testing, commissioning, installation and support. Design concepts are processed by Glen’s experienced in-house engineering team engineering team, which generates a complete suite of project documentation including 3D CAD designs, application-specific drawings, and full documentation of the analysis and calculations required for each of our marine technology solutions.
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Manufactured to the Highest Standards

Glen’s entire product range is manufactured in-house at our state-of-the-art facility in Chongqing, ensuring we maintain full control over the design and quality of everything we produce.

With stringent testing standards applied at every step in our in-house manufacturing process, Glen ensures the life cycle and performance of our entire product range meet specifications – and exceeds expectations.

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Quick Release Hook Quality by Glen Engineering

Glen Quick Release Hooks are constructed of superior materials to competitor products. This delivers exceptional strength and durability that ensures a long lifetime of premium performance. But premium performance doesn’t mean premium cost, and all our products are highly competitive compared with European suppliers.

Supported by highest level of responsive service, with no compromise on detail, we guarantee our customised Quick Release Hook solutions enable faster, safer mooring operations, providing greater operational efficiency and increased productivity. Combined, this ensures our customers receive exceptional return on investment when purchasing a Glen QRH system.


The correct SWL selection should follow the dynamic mooring analysis done by the consulting company to obtain the value.
Please also note that according to the OCIMF Meg3 guidelines, it is recommended that the SWL of each hook is larger than the MBL of the mooring.
For example, for LNG carriers using 140T MBL ropes, SWL150T quick release hooks are usually designated

A. The capacity of a capstan is usually specified by its line pull. This is sized according to the weight of mooring line
expected to be hauled in from the vessel to the mooring point. This will be greater for mooring dolphins than berthing dolphins; however, capstans are specified by maximum line pull to provide standardised equipment across the berth.

A. Each hook can accommodate two mooring lines up o a diameter noted in the datasheet. However, most
modern berths utilise load monitoring, and for this to be effective as a management data tool, each hook should
be dedicated to a single mooring line.

A.single or inherited detection system, such as: stress monitoring, environmental monitoring, laser berthing, including remote fault diagnosis and monitoring, can prevent faults, easy maintenance, and speed up turnover. It is the standard configuration of most modern terminals .

A.According to OCIMF/SIGTTO guidelines for jetty equipment, Hooks require regular greasing and basic inspection,
Instrumentation requires routine inspection inspection every year.
load cells requires calibrated annually.

Factory repair/Overhaul/Calibration service/Training Programs /On site service and support/Timely Technical Support.

Instrumentation requires routine inspection inspection every year.
load cells requires calibrated annually.

  • have in-house design engineering, manufacturing and testing capabilities.
  • Supplier taking “single point responsibility” for complete system.
  • The supplier have capable of offering custom solutions to meet project requirements.
  • The supplier providing 100% proof loading for hooks.
  • The supplier offering a comprehensive system warranty (not just product warranties)
  • The supplier should have a documented track record in similar product handling berths.
  • The supplier should offer after sales service support capability.
  • The supplier capable of offering annual service programs in accordance with SIGTTO/ OCIMF guidelines i.e.“JETTY MAINTENANCE AND INSPECTION GUIDE”?
  • The supplier have ability to interface with third party systems i.e. PLC/DCS, SSL etc.

What is the maximum horizontal and vertical angle of movement of each hook?
What is the operating height of the capstan?
What is the IP rating of the equipment?
A. Are typically covered by the product datasheet. Contact GLEN sales engineer or download from our website of “Resource”.

Whether you require a new installation, upgrades to existing installations, or replacements for mooring hooks… 

Choosing Glen delivers:

The correct solution, designed specifically to your needs.

Reliability and durable product for exceptional cost-of-ownership.

Efficient production timescales, for delivery on-time and on-budget.

A full lifetime of support through aftersales service.

And we constantly think ahead: our commitment to integrating new technologies and techniques means we are constantly evolving to meet the requirements of new digital mooring systems.

Quick Release Hook Resistant
Quick Release Hook International Standard
Quick Release Hook Temperature
Quick Release Hook Corrosion Resistant

Resistance to

Compliant with International Standards

Resistant to Extreme Temperatures

Resistant to

Safety, quality and value – delivered by Glen

Glen’s expertise in the manufacturing of Quick Release Hook solutions means we understand all aspects of managing a safe, reliable berthing process.

Our engineering team are able to specify the correct quick release hook system by combining Safe Working Load (SWL), materials and configuration data with flexible configurations of the IntMoor QRH product.

Quick Release Hook Products

Quick Release Mooring Hook

The Quick release mooring hook is critical to ensure efficient mooring operations at jetties, quays, and ports, developed by Glen Engineering.

Quick Release Towing Hook

Manufactured for exceptional performance, Glen’s Quick Release Towing Hooks provides towing solutions for ships, tugboats, harbour, and more

Quick Release Offshore Hook

Floating Production Storage and Offloading (FPSO) units are used in offshore oil and gas production for hydrocarbon processing, and more.

Free Standing Capstan

Free standing capstans are designed and manufactured for safe and efficient handling of vessels, designed and manufactired by Glen Engineering.

Intmoor Central Monitoring Systems

Central Monitoring System (CMS)

Glen’s Engineering’s smart, flexible and easy to operate via PC, CMS software aggregates the berthing and mooring data.

Mooring Load Monitoring Systems

Our load monitoring system combines reliable, repeatable load cell measurements with software that is easily accessible.

Berthing Approach

Glen’s Berthing Approach System is a critical investment ensuring safe operation for berthing and quick release hook operation.

Environmental Monitoring System

Our Environmental Monitoring System is built around a weather station to provide common meteorological measurements, and more.

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