Black Polypropylene 3/4" NPT Hex Plug

SKU: P-VAC-488
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$4.49

This polypropylene plug is an essential component for properly sealing manifold ports or access holes in the Tommy Vacuum assembly. Used primarily as a blanking plug, it ensures that vacuum pressure is maintained throughout the system by creating a tight, thread-sealed closure on any vacant 3/4 inch NPT female connections.


Key features and benefits include:


  • Corrosion Resistance: Made from Black Polypropylene, this plug offers excellent resistance to moisture, many chemicals, and impact, ensuring a long service life in a car wash environment.
  • Standard Sealing: Features 3/4 inch NPT (National Pipe Taper) threads, creating a reliable, tapered seal when tightened.
  • Heat Tolerance: Rated to operate across a wide range of temperatures, from 32°F to 275°F (0°C to 135°C), making it suitable for various climate conditions.
  • Easy Installation: The hexagonal head allows for easy tightening and removal using a standard wrench (1.1 inch Wrench Flat).
  • Compliance: The material is RoHS Compliant, meeting environmental safety standards.
  • Application: Critical for sealing unused connections in the Tommy Vacuum Assembly to maximize vacuum efficiency.
  • Manufacturer Part #: HN-34-BK (Sealcon)
  • Product Type: Hex Plug / Threaded Sealing Plug
  • Material: Black Polypropylene
  • Thread Size: 3/4" NPT
  • Wrench Flat: 1.1" (28 mm)
  • Operating Temperature: 32°F to 275°F (0°C to 135°C)
  • RoHS Compliant: Yes
  • Dimensions (Approx.):
  • Height (H): 0.87" (22 mm)
  • Thread Length (D): 0.63" (16 mm)
  • Outer Diameter (B): 1.18" (30 mm)
  • Application: Tommy Vacuum Assembly
  • Function: Seals off unused 3/4" NPT ports.
  • 3/4" NPT: Standard thread size for sealing vacuum ports.
  • Polypropylene: Chemical and corrosion-resistant material.
  • 275°F Rated: High heat tolerance for demanding systems.
  • Vacuum Assembly Use: Essential for maintaining a tight, efficient vacuum system seal.

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