INTRODUCTION

What Is a Sealing Gland?

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INTRODUCTIONTOCOMPRESSIONSEALFITTINGS

A sealing gland seals an element (probe,wire,conductor,pipe,tube,fiber optic cable) when the element must pass through a pressure or environmental boundary.A sealing gland may serveseveral purposes:• It restrains the element from moving as a result of a pressure delta.• It prohibits the leakage of gas/liquid media along the element. • In some cases,it electrically isolates the element from themounting device.Typical applications include pressure vessels,autoclaves,holdingtanks,pipelines,furnaces or anywhere wires or sensors need to pass from inside to outside a vessel or wall where pressure differentials or hazardous environments cause concern. A single sealing gland assembly may seal on single or multipleelements.Sealing glands designed to seal single elements consist of a body,cap,sealant and follower.When sealing on multiple elements, gland designs also include a seat and an anti-rotation pin to prevent wires/conductors from twisting and shearing.One or more insulators may also be included when electrical isolation is required. In Conax Technologies soft sealant technology,the element to besealed passes through the bores in the sealing assembly components.When the cap is torqued to the recommended value, the torque on the captranslates an axial force on the follower. This force compresses the sealant contained within the bodyhousing so that the sealant conformsto the element,creating aseal.The elastic nature of a sealant allows it to flow into any voids between the sealant and the element.

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The tension in the torqued body acts as a spring to maintain compression on the element.The static friction force between the sealant and the element restrains the element from moving under pressure.

Styles of Soft Sealant Glands

Conax offers numerous styles of sealing glands ranging from single bore glands to multi-hole glands that can accommodate hundreds of wires.We routinely accommodate in a single gland 1 to 18 conductors ranging from 24 AWG to 1000 MCM (1" diameter) to handle a voltage range from the millivolt level to 8000 volts. From 1 to 63 probes,ranging from 0.020" to 1.250" diameter, are also routinely sealed in a single unit.In these catalog pages, you will find further information on the purposes and specifications of all our standard gland styles.For assistance in selecting the right gland model for your needs,see our gland selection guide on pages 14-17. In addition,custom configurations are never a problem.From process control applications to aerospace,Conax Technologies can provide a gland for your needs.

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Tel: 1.716.684.4500 • USAToll Free: 1.800.223.2389 • Email: info@conaxtechnologies.com • Website: www.conaxtechnologies.com