Inspection Plugs | GLT Products

Inspection Plug

Standard Inspection Plugs are designed to assist in Non Destructive Testing (NDT) programs on insulated and non-insulated pipe and vessels. These plugs are designed to withstand temperatures up to 500º F and are available in both Aluminum and Stainless Steel versions. They also provide a method of sealing test holes in insulation for ultrasonic testing of metal thickness or visual inspection for external corrosion of insulated equipment in hot or cold service.

Available in:

  • Aluminum version:
    • Aluminum Alloy 3003, Temper O. .032 THK
    • Physical Properties: Ultimate Tensile Strength (UTSI)= 17.8-17.9
    • Typical Yield (TYSI)=7.5-7.6 Elongation (EL4D)= 28.5-29.5
  • Stainless Steel version (Optional):
    • Steel alloy T304 Annealed 3B Finish 8% Minimum Nickel. .020” THK
    • Physical Analysis: YLD2%-43300 TENSL=101000 ELONG=61 R155T=83 Gain=8
  • Strain Relief Washer Molded into Plug:
    • Stainless Steel Flat washer .156 x .375 x .049 (to provide strain relief for lanyard)
  • Lanyard Assembly:
    • 1/16” 7 x 7 Stainless Steel Wire Rope/Flexible Aircraft Style
    • Construction: 7 Strands with 7 wires per strand.
    • Alloy: 302/304 Stainless Steel/Copper Oval Pressed Sleeve
    • Material: Copper per. Type 102 (UNS C10200) or Type 103 (UNS C10300) or Type 122 (UNS C12200) in accordance
    • with ASTM 875
  • Silicone Plug:
    • Compound #SVX-16194A-6 RED Silicone.
    • Compression Molded Physical Properties: Durometer A = 45-55, Tensile > 700, Elongation > 350%, Tear Die B > 50.
    • High resistance to ultraviolet radiation.
  • O” Ring:
    • Compound #N7001 Nitrile Physical Properties: Durometer A=70, Tensile=2130, Elongation=470%
    • Corrugated Transition Gasket:
    • Compound #110-60 Neoprene
    • Physical Properties: Hardness, Shore A=60, Ultimate Tensile 2770 PSI, Elongation=625%, Tear=318PSI.
    • High resistance to ultraviolet radiation. Available for 2 ½”, 4” and 5” Flanges)

Available Sizes:

  • 1½” Contoured for 5”-6” O.D. jacketing
  • 1¾” Contoured for 5”-6” O.D. jacketing
  • 1¾” Flat
  • 4” Flat 1 ¼” Corrugated transition gasket available
  • 5” Flat 1 ¼” Corrugated transition gasket available

 

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