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Myers Hubs PowerPoint PPT Presentation


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Myers Hubs. Crouse-Hinds Training Module. Myers Hubs. Outline. History Applications Product Features Certifications and Compliances Types of Myers Hubs Additional Hubs Available Marketing Materials. Myers Hubs. History. Pre-1949

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Myers Hubs

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Myers Hubs

Crouse-Hinds Training Module


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Myers Hubs

Outline

  • History

  • Applications

  • Product Features

  • Certifications and Compliances

  • Types of Myers Hubs

  • Additional Hubs Available

  • Marketing Materials


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Myers Hubs

History

  • Pre-1949

    • Welding was standard to bond coupling to enclosure, to maintain a watertight connection and ground for conduit entering enclosure.

  • 1949

    • Myers Hubs established. Invented the Scru-Tite® Hub.

      • Watertight / Dust Tight Joint.

      • Positive Electrical Ground.

      • UL / CSA Approved.

      • Eliminated need for welding.

  • 1997

    • Myers acquired by Cooper Crouse-Hinds.


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Myers Hubs

Applications

  • Used in wash down, harsh industrial, outdoors, hazardous, corrosive / chemical atmospheres, for grounding, indoor rigid conduit, OEM, and overseas applications (metric adapters).

  • In conjunction with enclosures / wireways fabricated from sheet steel, stainless steel, cast, and non-metallic materials.

  • Industries such as refineries, paper mills, food processing, breweries, waste water treatment facilities, chemical plants, pharmaceutical plants, steel mills, and marine applications.


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Myers Hubs

Product Features

  • Vibration Proof

    • Strong, oversize nut with radial serrations assures flush installation and positive grounding.

  • Optional Grounding Screw For Added Safety

  • Captive “O-Ring” Gasket

    • Impervious to corrosive moisture and petroleum products. Buna-N gasket assures positive water and dust-tight installations.

  • Precision Machine Cut NPT Threads

    • Positive fit and simple installation.


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Myers Hubs

Product Features

  • No Welding

    • Unique serrations on both nut and hub bite into metal assuring a positive electrical ground. (UL approved for use with service entrance conduit.)

  • Posi-Lok Insulated Throat

    • Cannot come out. Made from flame retardant Lexan®. Standard in sizes from 1/2” through 4”

  • Fit Standard Knockouts.

  • Hub Basic Scru-Tite zinc 1/2” – 2” products available with optional chrome plate finish. (add suffix - CP)


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Myers Hubs

Certifications and Compliances

  • UL Listed

  • CSA Certified

    • Class I, Division 2 NEC 501-4(b)

    • Class II, Division 1 & 2 NEC 502-4(a)(b)

    • Class III, Division 1 & 2 NEC 503-3(a)(b)

  • For use with NEMA Enclosures 2, 3, 3R, 4, 4X, and 12. (Check hub type for individual compliances)

  • Optional IEC / CENELEC Hubs for:

    • Zone 1, Ex e II

    • Zone 1, Eex e II

    • Zone 1, Aex e II


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Myers Hubs - Types

Scru-Tite® Hub - ST and STA Series

  • Available in zinc or aluminum.

  • Sizes range from 1/4” through 6”.

Ground Hub - STG and STAG Series

  • Available in zinc or aluminum.

  • Sizes range from 1/2” through 6”.

  • Provides ground screw on locknut.


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Myers Hubs - Types

Stainless Steel Hub - SSTG Series

  • 316 stainless steel construction resists corrosion and pitting in chemical atmospheres.

  • Sizes range from 1/2” to 2”

  • Grounding Screw provided on lock nut.


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Myers Hubs - Types

Through Bulk-Head Fitting - STTB, STTBA, STTTB, STTTBA Series.

  • Available in zinc or aluminum.

  • Available with or without a nipple.

  • Sizes range from 1/2” - 2”

  • For installation of conduit through fire wall or partial bulkheads.


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Myers Hubs - Types

IEC / CENELEC HUB - STGK or SSTGK Series

  • Available in zinc or stainless steel.

  • Sizes range from 1/2” - 2” in zinc.

  • Sizes range from 1/2” - 2” in stainless.

  • Class I, Zone 1, Ex e II - IEC approved.

  • Class I, Zone 1, EEx e II - CENELEC approvals through DEMKO (European test lab)

  • Class I, Zone 1, AEx e II - NEC Article 505 approved.

  • Hub includes increased safety ground terminal and locking screw on lock nut.


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Myers Hubs - Types

Metric to NPT Adapter - STM and SSTM Series

  • Available in zinc or stainless steel.

  • Sizes ranges:

    • M20 to 1/2” up to …..

    • M75 to 2 1/2” (zinc)

    • M63 to 2” (stainless steel)

  • Used to convert a threaded metric entry to an NPT entry.


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Myers Hubs - Types

Ground Nut - STGN and STAGN Series

  • Available in zinc or aluminum.

  • In zinc sizes range from 1/2” - 2”.

  • In aluminum sizes range from 1/2” – 6”


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Myers Hubs - Types

Cap-Off - STC and STAC Series

  • Available in zinc or aluminum.

  • Zinc Sizes 1/2” - 2”.

  • Aluminum Sizes 1/2” – 1”

  • Economical way to cap-off a knock out.

Drain Plug

  • Available in aluminum or stainless steel.

  • 1/2” trade size.

  • Available with locknut for 1/2” KO or with NPT threads for threaded opening.

  • Designed to drain any accumulated condensation.


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Additional Hubs

Raintight Malleable Iron Conduit Hubs

  • Product Features

  • Male thread type

  • Tapered Female thread for rigid conduit & IMC

  • Recessed O-ring gasket assures raintight & dust tight connections

  • Insulated throat provides smooth pulling surface

  • Locking screw on nut doubles as a grounding screw for added safety

  • Compete sizes range from 1/2” – 6”


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Additional Hubs

Iron Space Saver Conduit Hubs

  • Product Features

  • Male thread is on the nut for space saving

  • Quick and easy when installing rigid conduit nipple between two existing enclosures

  • Insulated throat provides smooth pulling surface

  • Furnished with SG sealing gasket

  • Hub fits standard knockouts. No special tools required


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Myers Hubs - Marketing Materials

  • Commercial Products Catalog

  • Cross Reference Guide

  • Commercial Products Pocket Guide

  • Myers Hubs Product Brochure

  • www.crouse-hinds.com


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