High Flow Hydraulic Quick Couplers | Parker HO Series

Parker HO Series Hydraulic Couplers Key Features

  • For high pressure applications: working pressures to 15,000 PSI (1,050 Bar) for the ¼” and 3/8” sizes; to 10,000 PSI (700 Bar) for the ½” size.
  • No internal valving to restrict flow.
  • Made of steel with electroless nickel plating for corrosion resistance.
  • Standard sleeve-lock feature which helps prevent accidental disconnect.
  • Standard Nitrile Body O-Ring. Backed up by PTFER washer to prevent seal extrusion.

HO Series Product Specifications


HO Series Couplers HO Series Nipples


Parker HO series are used in refineries, petro-chemical plants and paper and pulp mills for connecting hose lines for high pressure hydro-blasting of boilers and pipe lines. They are also used in oil fields on hose lines for internal and external pressure testing of tubing.

More Quick Couplers and Related Products


HO Series Couplers HO Series Nipples Dust Plugs & Caps More Hydraulic QCs  Other Quick Couplers
(Hydraulic & Pneumatic)

Warning Triangle WARNING: These products can expose you to chemicals including lead and/or DEHP and/or carbon black, which are known to the State of California to cause cancer or birth defects or other reproductive harm.  For more information go to www.P65Warnings.ca.gov