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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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slide1

Myers Hubs

Crouse-Hinds Training Module

slide2

Myers Hubs

Outline

  • History
  • Applications
  • Product Features
  • Certifications and Compliances
  • Types of Myers Hubs
  • Additional Hubs Available
  • Marketing Materials
slide3

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.
slide4

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.
slide5

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.
slide6

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)
slide7

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
slide8

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.
slide9

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.
slide10

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.
slide11

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.
slide12

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.
slide13

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”
slide14

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.
slide15

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”
slide16

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
slide17

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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