Safe sealing
Devon Ward explains how Pratley’s Taper-Tech Cable Gland range ensures safe and reliable sealing in hazardous environments
CAN YOU OUTLINE THE KEY TECHNICAL FEATURES OF THE TAPER-TECH RANGE?
The Pratley Ex d/e Flameproof Taper-Tech Cable Gland Range is engineered for hazardous and flameproof environments, offering a combination of advanced sealing technology, durability, and installation flexibility. Central to the range is the unique Taper-Tech flame seal technology, which provides highly effective flameproof sealing while applying lower radial pressure to the cable sheath, thereby reducing the risk of cable damage and maintaining long-term sealing integrity, even on soft-bedded cables such as PVC.
The glands are quad certified for Ex d/e/nR/t applications in Groups I, IIC, and IIIC, making them suitable for mining, gas, dust, and heavy industrial environments. They also deliver exceptional environmental protection with IP66/IP68 ratings and have been tested for continuous immersion at depths of up to 350m. Designed to perform in harsh conditions, the glands operate reliably within a temperature range of -35°C to +120°C and are available in both metric and NPT thread configurations for broad compatibility.
Additional safety and reliability benefits include retained internal sealing bushes that prevent component loss during installation, as well as double compression designs that provide both flameproof and environmental sealing. Variants for armoured, braided, and unarmoured cables, including reversible cone ring and shrouded options, further enhance versatility, making the range a robust and dependable solution for demanding industrial applications.
WHY WERE THE PRODUCTS ORIGINALLY DEVELOPED, AND HAS THIS MISSION CHANGED OVER THE YEARS?
The range was specifically engineered for hazardous environments where safety, reliability, and long-term performance are critical. Designed to meet the demanding requirements of Ex-rated areas, the Pratley Ex d/e Flameproof Taper-Tech Cable Gland Range is ideally suited for offshore and onshore oil and gas installations, petrochemical plants, refineries, and other industrial environments where explosive atmospheres may be present.
From the outset, Pratley’s objective was to develop a cable gland that would not only comply with international hazardous area regulations, but in many cases exceed them. Built with a focus on exceptional quality, durability, and functionality, the range was designed to withstand harsh operating conditions while ensuring safe and reliable cable termination in high-risk Ex environments.
The Pratley Ex d/e Flameproof Taper-Tech Cable Gland Range became a benchmark in hazardous area cable termination technology, reflecting Pratley’s commitment to engineering excellence and setting a new standard for performance, reliability, and safety in the industry.
HOW HAVE THESE PRODUCTS STOOD THE TEST OF TIME?
Although the Pratley Ex d/e Flameproof Taper-Tech Cable Gland Range has only been on the market for approximately four years, it has already proven itself in some of the world’s harshest and most demanding hazardous environments. Installed across offshore and onshore oil and gas facilities, petrochemical plants, and other Ex-rated industrial applications globally, the range has consistently delivered the safety, reliability, and performance it was engineered for.
From the beginning, the range was designed with longevity and durability in mind. At Pratley, products are not simply developed to meet current industry requirements — they are engineered to provide long-term operational reliability and peace of mind in critical applications where failure is not an option. The continued performance of the Taper-Tech range in challenging conditions is a testament to Pratley’s commitment to quality engineering and robust product design.
ARE THERE UPGRADES OR IMPROVEMENTS PLANNED IN THE FUTURE?
The Pratley Ex d/e Flameproof Taper-Tech Cable Gland Range has not required any major upgrades since its introduction, as it was engineered from the outset to deliver exceptional performance, reliability, and compliance in the most demanding hazardous area applications. The range was designed with a forward-thinking approach, incorporating robust engineering principles and high-quality materials to ensure long-term durability and operational excellence.
Rather than continuously modifying the product, Pratley focused on developing a solution that would set the benchmark from day one — a cable gland range capable of meeting and exceeding industry expectations in offshore and onshore oil and gas environments, petrochemical facilities, and other high-risk Ex-rated areas.
That said, Pratley remains committed to ongoing innovation and continuous evaluation of industry needs, standards, and customer requirements. Should future advancements offer meaningful benefits in performance, safety, or functionality, these will always be carefully considered as part of the company’s commitment to engineering excellence.
WHAT APPLICATIONS HAVE THE CABLE GLANDS BENEFITED?
The Flameproof Taper-Tech range has benefited a wide variety of hazardous-area applications where cables must be terminated safely and reliably into junction boxes, electrical panels, motors, control equipment, and industrial machinery operating in potentially explosive environments. These cable glands have been successfully used across industries such as mining, oil and gas, petrochemical, chemical processing, power generation, and heavy industrial manufacturing, where dependable flameproof protection and environmental sealing are essential. The Flameproof Taper-Tech range enhances operational safety, improves long-term reliability, and reduces maintenance risks in demanding industrial environments.
HOW DOES THE TAPER-TECH RANGE CONTINUE TO STAND OUT IN THE MARKET?
What continues to set the Pratley Ex d/e Flameproof Taper-Tech Cable Gland Range apart in the market is its combination of advanced engineering innovation, proven quality, and the exceptional customer service and technical support that Pratley provides through its global distributor network. Central to the range is the unique Taper-Tech flame seal technology, which delivers highly effective flameproof sealing while applying lower radial pressure to the cable sheath, significantly reducing the risk of cable damage during installation and operation.
This innovative design not only enhances safety and reliability in hazardous area applications but also improves long-term cable performance and installation integrity. Combined with Pratley’s reputation for product excellence, compliance with international standards, and dedicated customer support, the Taper-Tech range continues to be a trusted solution for demanding industrial environments worldwide.
Devon Ward is export operations manager at Pratley. www.pratleyelectrical.com
