Discover H-P's offers a variety of couplings for tube and pipe joining. Including INSTALOK™ and compression couplings, clamps, and more.

Instalok™ Coupling

INSTALOK™ Couplings

Designed specifically for conveying plastic pellets and for other non-sanitary vacuum applications.

  • Offered in 1.5” through 4” sizes.
  • Galvanized steel construction, with O-rings available in Black Nitrile, White Nitrile, or Viton™.
  • Eliminates the risk of product contamination due to deteriorating gasket material.
  • Installs in half the time of competing couplings, while delivering superior performance.
  • Costs 20% less than traditional compression couplings.
Compression Coupling

Compression Couplings

Designed for vacuum and pressure applications in pneumatic conveying or industrial vacuum systems.

  • Offered in 1.5” through 14” sizes.
  • Heavy-gauge, zinc-plated steel construction.
  • Stainless steel grounding strips (to eliminate static electricity build-up) are standard, and gasket protectors (to eliminate gasket wear) are available.
  • Standard gaskets are made of Black Neoprene or White Nitrile Rubber. Also available are Silicone, Red Rubber, EPDM, and Viton™.
  • Stainless steel couplings are available upon request.


Designed for higher-pressure applications and anywhere else superior holding power is needed.

  • Offered in 2” through 12.75” sizes.
  • Construction is similar to the compression coupling, with two additional bands to add metal-to-metal gripping power.
  • Conversion kits are available to retrofit a standard compression coupling into an eliminator.
Super Grip

Super Grip

Designed as a quick coupler for dry, bulk transport tank tubing and applications involving the teardown of lines for periodic cleaning.

  • Offered in 1.5” through 12.75” sizes.
  • Type 430 bright-annealed stainless steel construction allows it to survive harsh weather or road conditions.
  • Available in single or double clamp configurations, providing fail-safe clamping action despite expansion, contraction, and vibration.
  • FDA-approved gum rubber gaskets come standard for use in food applications.
  • Provides better support than rubber hose and band clamps.
Cam & Groove Couplings

Aluminum Cam & Groove Couplings (quick-acting)

Designed for non-permanent connections, such as hose to equipment.

  • Offered in 1.5” through 8” sizes.
  • Female couplers are supplied with a locking feature. Safety clips may be inserted to lock the handles, preventing disconnection during product transfer. Brass security chains are available.
  • Stainless couplings are available.
  • All sizes except 5” and 8” are covered by MIL Spec A-A-59326.
  • Compliance with this specification allows for brand interchangeability