Hawke 475 Stopping Plugs

Flameproof Exd / ATEX – IECEx / Stopping Plug

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Flameproof Exd – ATEX / IECEx stopping plug

  • The 475 is fitted from the outside of the enclosure.
  • M16 to M75 as standard.
  • Other thread options available on request, including BSPP, PG, NPT and ET.
  • Metric entry threads are 1.5mm pitch as standard.

The 475 tamperproof stopping plug is manufactured in Brass, Nickel Plated Brass, Steel, Nickel Plated Steel and Stainless Steel. (Aluminium for Group II use only).

Certification Details

  • Flameproof Exd IM2, Exd IIC Gb, Extb IIIC Db, IM2 II 2GD.
  • Certificate No’s: Baseefa10ATEX0262X and IECEx BAS 10.0120X.
  • GOST R certified.
  • Operating Temperature Range -60°C to +160°C.
  • Group I, II and III

General Information

  • General Information
    • The 477 is fi tted from inside the enclosure.
  • Manufactured in Brass, Nickel Plated Brass, Steel, Nickel Plated Steel and Stainless Steel. (Aluminium for Group II use only).
  • M16 to M75 as standard.
  • Other parallel thread options available on request, including BSPP, PG, NPT and ET.
  • Metric entry threads are 1.5mm pitch as standard.
  • Suitable for use in Zone 1, Zone 2, Zone 21, Zone 22 and mining applications.
  • Construction and Test Standards: IEC/EN 60079-0, IEC/EN 60079-1 and IEC/EN 60079-31.
  • Ingress Protection: IP66.
  • Assembly Instruction Sheet: AI 404.
Selection Table
Thread SizeThread Size (NPT)Allen Key
(mm)
M16½ ” *6/10*
M20¾ ” or ½ “10
M251″ or ¾ “10
M321 ¼ ” or 1″10
M401 ½ ” or 1 ¼ “10
M502″ or 1 ½ “10
M632 ½ ” or 2″10
M753″ or 2 ½ “10

* smaller size if for M16 only.

Hawke 475 Tamperproof Stopping Plugs Datasheet