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  • Blanked edge Welch Plugs are engineered to seal core holes in castings with plug sizes ranging from 0.125” to 4.500”.
  • Good for limited depth and lower-pressure applications.
  • Best used as cover or to retain liquid at low or no pressure.

 

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Unit of Measure
Items
WELCH-PLUGS---BLANKED-EDGE-ENGLISH--HP-

0.032 Inch (in) Thickness Aluminum Plain Finish Imperial Banked Edge Welch Plug
WELCH-PLUGS---BLANKED-EDGE-ENGLISH--HP-

0.032 Inch (in) Thickness Brass Plain Finish Imperial Banked Edge Welch Plug
WELCH-PLUGS---BLANKED-EDGE-ENGLISH--HP-

0.032 Inch (in) Thickness Cold Rolled Steel Plain Finish Imperial Banked Edge Welch Plug
WELCH-PLUGS---BLANKED-EDGE-ENGLISH--HP-

0.032 Inch (in) Thickness Cold Rolled Steel Mechanically Plated Zinc Imperial Banked Edge Welch Plug
WELCH-PLUGS---BLANKED-EDGE-ENGLISH--HP-

0.032 Inch (in) Thickness Cold Rolled Steel Electro Plated Zinc Imperial Banked Edge Welch Plug
Description N/A

PURPOSE

  • Blanked edge Welch Plugs are engineered to seal core holes in castings with plug sizes ranging from 0.125” to 4.500”.
  • Good for limited depth and lower-pressure applications.
  • Best used as cover or to retain liquid at low or no pressure.

SEALING DETAILS

  • The seal is created by sharp corner of the blanked edge expanding into the sharp corner of the counter-bore.
  • Retains up to 3 bar pressure on 1” diameter plugs.
  • Requires a machined counter bore as detailed on the item page.
  • Requires an installation tool as detailed on the item page.

Expansion plugs are an inexpensive and effective way to seal holes in a wide range of metal products – not just castings.

Hubbard Spring’s expansion plugs are produced on the latest servo-stamping presses using modern tooling and inspection systems.

Hubbard Spring is the original manufacturer and patent holder of expansion plugs since 1913.

 
Hole Diameter N/A 0.129 in
Outside Diameter N/A 0.125 in
Spherical Radius N/A 0.109 in
Material Type N/A Aluminum N/A Brass N/A Cold Rolled Steel N/A Cold Rolled Steel N/A Cold Rolled Steel
Material Thickness N/A 0.032 in
Finish N/A Plain Finish N/A Plain Finish N/A Plain Finish N/A Mechanically Plated Zinc N/A Electro Plated Zinc
Hole Diameter N/A 0.129 in
Outside Diameter N/A 0.125 in.±0.002 in.
Spherical Radius N/A 0.109 in
Material Type N/A Aluminum N/A Brass N/A Cold Rolled Steel N/A Cold Rolled Steel N/A Cold Rolled Steel
Material Specification N/A ASTM B208 - 1100 N/A ASTM B36/B36M - C26000 N/A SAE J403 - 1008/1010 N/A SAE J403 - 1008/1010 N/A SAE J403 - 1008/1010
Temper N/A H14 Temper N/A H02 Temper (Half Hard) N/A No. 2 (Half Hard) - ASTM A109 N/A No. 2 (Half Hard) - ASTM A109 N/A No. 2 (Half Hard) - ASTM A109
Material Thickness N/A 0.032 in.±0.0015 in.
Finish Type N/A Plain Finish N/A Plain Finish N/A Plain Finish N/A Mechanical-Plated Zinc -ASTM B695 0.00015" Minimum (30 salt spray hours) N/A Electro Plated Zinc - ASTM B633 SC1 type "V" - 0.0002" Minimum (72 salt spray hours)