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This article has been written by Jim Jota (Marketing Manager, Water Weights).

Safety and efficiency are paramount in lifting operations. Decades ago, a significant industry incident involving the failure of a 45-ton water bag led to the issuance of an HSE Safety Notice. This event underscored the need for strict safety standards in load testing, which have since evolved into the LEEA 051 standard. Unique Group’s Water Weights® bags, developed as a safer and more efficient alternative to traditional weights, have since been vital in ensuring compliance and safety in load testing.

LEEA 051: A Safety Milestone in Load Testing

The LEEA 051 standard, introduced in 2013, provides detailed guidance on designing, inspecting, and using Water Weights® bags. These bags offer significant advantages over traditional solid weights, providing a safer, more flexible option for load testing. The guidelines require that Water Weights® bags be subjected to proof load tests that ensure their capacity to withstand loads up to six times their working limit. Inspection and recertification are critical under LEEA 051, emphasizing the need for routine checks and maintenance to guarantee the reliability and safety of the bags.

Water Weights® bags are designed to distribute loads through webbing slings, reducing the risk of rupture and improving load-bearing efficiency. Under LEEA 051, each bag must undergo regular inspections and recertification to ensure continued integrity, especially in environments where wear and tear are expected. Inspections should be carried out by competent personnel, following a structured schedule based on the bags’ use and environmental conditions.

Water Weights® bags in use for crane load testing.

Actions for Duty Holders and Operators

Water Weights® bags fall under The Provision and Use of Work Equipment Regulations  (PUWER) and Lifting Operations and Lifting Equipment Regulations (LOLER), which assign duty holders to inspect and maintain the equipment regularly. Pre-use inspections should be conducted to identify any damage, and a competent person must conduct ongoing inspections to check for wear and deterioration. Usage, environmental conditions, and manufacturer recommendations determine the frequency of these inspections. Additionally, lifting sets should be thoroughly examined every six months or after significant repairs or modifications to ensure compliance with LOLER standards.

A Pioneering Innovation in Load Testing

Since their introduction in 1979, Water Weights® bags have revolutionized load testing by providing a safer, more efficient alternative to traditional solid weights. These water-filled bags were initially used on North Sea oil platforms, offering unmatched versatility and safety. Their weight, when empty, makes transportation and setup safer and cost-efficient, while their ability to be precisely filled with water makes them adaptable to a wide range of load-testing applications.

Water Weights® bags are engineered with advanced safety features to prevent ruptures or leaks, ensuring safe and reliable performance during testing. Additionally, their reusable and cost-effective design makes them an economical choice for industries that require frequent load testing.

The sustainability of the Water Weights® system is a significant advantage in modern load testing practices. These water-filled proof load bags are reusable, reducing the need for single-use or heavy solid weights that often require extensive manufacturing materials and energy. By utilizing water as a filling medium, the system minimizes environmental impact during both production and transportation. Furthermore, Water Weights® bags can be quickly filled and emptied on-site, eliminating the carbon footprint of transporting heavy solid weights. This environmentally conscious approach contributes to safer and more sustainable lifting operations across various industries.

Water Weights® bags are in use for load testing in a dam in the USA.

A Synergy of Safety and Innovation

The synergy between LEEA 051 and Unique Group’s Water Weights® represents the perfect fusion of innovation and safety. LEEA 051 provides the critical guidelines for safely using Water Weights® bags. At the same time, Water Weights® itself offers a practical solution for industries requiring accurate, reliable load testing. It ensures that lifting operations meet the highest safety standards, minimize risk, and improve operational efficiency.

Beyond load testing, Water Weights® offers solutions for safe lifting operations, including load measurement/monitoring systems, portable and permanently mounted Magnetic Rope Testing (MRT) inspection instruments, pressurized lubrication devices for wire rope, and crane runway surveys using dimensional control equipment.

Finally, the partnership between LEEA 051 and Water Weights® bags has set a new standard for load testing safety and efficiency. Duty holders must comply with PUWER and LOLER regulations by regularly inspecting and recertifying Water Weights® bags. By doing so, companies can conduct safe, reliable load tests that protect personnel and equipment. This combination of stringent safety standards and innovative solutions continues to drive the future of safe lifting operations across industries worldwide.

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