ASSEMBLYINSTRUCTIONS

INTRODUCTIONTOCOMPRESSIONSEALFITTINGS

Metal-To-Metal Sealing Glands

Factors Affecting Sealing Gland Performance

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SEALINGGLANDS

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ASSEMBLYINSTRUCTIONSASSEMBLYINSTRUCTIONSASSEMBLYINSTRUCTIONSASSEMBLYINSTRUCTIONSASSEMBLYINSTRUCTIONSASSEMBLYINSTRUCTIONSASSEMBLYINSTRUCTIONSASSEMBLYINSTRUCTIONS Conax Technologies offers one gland style that features a stainlesssteel ferrule instead of a soft sealant.The MK gland uses compression to deform the ferrule against the tube/probe without cutting the sheath surface.A slight deformation of the tube/probe surface does occur,however.MK glands are freely adjustable until first tightened.After that,they may be opened and resealed at that fixed immersion depth.The MK gland is designed to form the seal deep within the gland body,allowing the gland to stand up in high vibration applications.

Torque

As a general rule,increased torque increases compression,which in turn improves seal integrity and enables the gland to seal against higher pressures.Torquing has limits,however.Over-torquing can cause:• excess sealant extrusion • material fracture in the body’s thread relief • “mushrooming”of the cap and follower • damage to the element Under-torquing may result in reduced sealant compression,causingreduced pressure rating or diminished seal integrity.Torque ratings are provided for each gland.Best results will be achievedif the gland is torqued to the proper range.Unless otherwise noted, Conax Technologies torque ranges were determined using solid stainless steel elements at 68Ëš F (20Ëš C). Please note that hollow pipe or tubing,ductile materials such as copper or platinum wire,and fragile materials such as glass or ceramic easily deform or fracture under compression.The torque must be decreased to compensate for these material properties. As a result,the pressure rating will decrease.If elements are sleeved with Teflon or other jacketing materials,pressure ratings may also decrease.Please consult our factory for information on proper torque and pressure information for any of these materials.The torque and pressure ratings provided in this catalog apply only ifthe bores are drilled by Conax Technologies.We cannot certify theratings for bores drilled by the customer or any other outside party.If you have any questions about proper torque and pressure ratingsfor your application,our skilled sales engineers would be happy to assist you in the selection of the appropriate gland for your use.

Advantages of Soft Sealant Technology

In an epoxy seal, the filled containment is often subjected tocyclical temperature excursions defined by the process in which it is used.The epoxy material,wire/probe and housing have different coefficientsof expansion.Rapid excursions in temperaturecreate cracks or voids around the wires and between the housing and the epoxy.With soft sealant technology ,the continuoustension in the torqued body acts like a spring to maintain compression on the sealant and maintain a positive seal throughout the temperature cycle.Soft sealant technology allows replacement and adjustment of thesealed element.This is not possible with other technologies such as epoxy and glass-to-metal sealing. Damage or injurymay result from interchanging or mixing parts of Conax Technologies sealinggland assemblies withsealing assemblies made by other manufacturers.

CAUTION – Interchangeability

Conax Technologies’ warranty becomes null and void should theuser elect to modify Conax Technologies components or mix them with that of another supplier. Conax Technologies sealing assemblies are manufactured to exacting standards.The critical interaction of precision parts as designed is essential to reliability and safety.Using parts of assemblies made by other manufacturers may not result in reliable seals.
™ TECHNOLOGIES Tel: 1.716.684.4500 • USAToll Free: 1.800.223.2389 • Email: info@conaxtechnologies.com • Website: www.conaxtechnologies.com

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