Series HK Couplings are the most versatile couplings available and are suitable for use with various liquids, chemicals, steam, gases and vacuum. Series HK couplings conform to the dimensional requirements of ISO 7241-1 Series B. Body sizes range from 1/8" to 1".

Features:

  • The coupling that set the industry standard
  • Multiple options make the HK our most versatile coupling series available
  • Brass, steel and stainless steel construction available in all sizes; 1/4" body size is also available in polypropylene
  • End connections are female NPTF, BSPP and SAE o-ring boss
  • Heavy duty steel couplings for use in high impulse service available in most sizes
  • Steam coupling available in 3/8" body size
  • Unit of Measure

    Specifications

    Body Size1 N/A 1/8 in4.4 mm

    Temperature Range

    N/A -40 to 250 ºF-40 to 121 ºC

    Interchangeability

    N/A ISO 7241-1 Series B

    Rated Pressure: Brass

    N/A 3,000 psi207 bar

    Rated Pressure: Steel

    N/A 4,000 psi275 bar

    Rated Pressure: Stainless Steel

    N/A 5,000 psi344 bar

    Materials

    N/A
  • Brass, zinc-plated steel, stainless steel or polypropylene (¼" only) construction
  • Stainless steel spring, balls and retaining ring
  • Buna-N (Nitrile) seal
  • PTFE back-up rings in steel and stainless steel sockets
  • Applications & Markets

    N/A
  • Agriculture
  • Hydraulic Tool
  • General Industry
  • Construction
  • Fluid Transfer
  • Transportation
  • Military
  • Law Enforcement / Rescue
  • Chemical
  • Oil & Gas
  • Consumer Products
  • HVAC
  • Food & Beverage
  • Trucks
  • Aerospace
  • Medical
    • 1 Nominal.