For explosive atmospheres

A barrier gland is a cable gland that provides a seal around the individual cores of a cable to maintain the flameproof integrity of Exd equipment.

These glands meet the requirements of IEC 60079-1 and employ a compound seal, or other sealing method around each core to prevent the migration of an explosion from within a piece of flameproof equipment to the outside atmosphere.

Hawke International has a comprehensive, and UNIQUE range of barrier glands offering numerous features and benefits not to be found from other manufacturers. Scroll down to discover the range.

3 Seal Options – All Fully Inspectable
Hawke International is the only cable gland manufacturer to offer three solutions to Exd barrier glanding:

QSP 2-part Hand Mix Putty
Simple to use with a cure time from 30 minutes. Particularly useful where termination space is limited or cables are running horizontally to the installation area. Can be inspected and repaired if necessary, allowing for the highest level of safety.

ExPress Barrier Resin
A liquid injectable and fast curing resin, allowing for faster installation time than traditional 2-part compounds. Utilising a unique clear compound chamber allowing full visibility of the flameproof seal during installation and inspection, the ExPress barrier resin is unparalleled as a global solution.

Instant Barrier Seal
The PSG474 (punched seal gland) provides market leading installation and inspection time. No resin. No mixing. No cure time. Simply pass the individual cores through the pre-punched seal, fill any unused holes with the provided sealing pins and tighten. Fully inspectable and no waiting time – irrespective of temperature, location or installation position.

Barrier Glands Special Features

1 Unique Rear Sealing System
This arrangement offers IP66, IP67, and IP68, NEMA 4X and Deluge (DTS01) Ingress Protection. The seal is manufactured from a silicone material, has LSFZH properties, is o-zone and oil resistant and suitable for use at both high and low temperatures.The Rear Sealing System covers the entire range of cable diameters with out the need for special seals and the cable acceptance range is stamped on the backnut for ease of inspection. The backnut can be hand tightened, with only one further spanner turn required to ensure IP66, IP67, IP68 and NEMA 4X

2 Unique Inspectable Compound Chamber
The revolutionary Hawke compound chamber has been designed with inspectability in mind. With a unique clear non-metallic compound chamber for both IEC and NEC application, the barrier seal can be made using either a QSP quick setting 2-part hand-mixed putty, or a liquid injectable and fast curing resin, allowing for faster installation time than traditional 2-part compounds. The transparent compound chamber allows full visibility of the flameproof seal during installation and inspection making the ExPress barrier resin unparalleled as a global solution.

3 Zero Cable Damage
The original RAC clamping system was invented by Hawke over 10 years ago and is a well established proven performer in all conditions. Simply by reversing the clamping ring, the cable gland can adjust to accommodate all types of cable armour or braid. Unlike many of our competitors, the correct stamping orientation is marked clearly with the armour size and backed up by the presence of a groove in the component. Hawke’s RAC clamping system is also fully Inspectable when positioned on the cable.

4 The Original Reversible Armour Clamp
To help address issues with the overtightening of cable glands and the resultant damage to cables and seals, Hawke International has developed the patented INBUILT TIGHTENING GUIDE. Without the need for fiddly measuring systems, the guide provides a permanent visual indication of the gland tightness through installation, inspection and maintenance. The gland is permanently marked with various lines/numbers indicating the correct tightening level related to the cable diameter. The backnut, once tightened to the line corresponding to the cable diameter, ensures there is no cable damage whilst still maintaining IP and pull-out.

5 Inspectable Deluge Seal
Hawke’s Inspectable deluge seal offers IP66 and IP67 sealing and is certified as ‘deluge proof’ by ITS in accordance with DTS01. Indeed, Hawke’s deluge seal is so good that it exceeds the expectations of the offshore industry by not only preventing ingress into the equipment, but also into the cable gland, which prevent corrosion of the cable armour.