HO Series Couplers (hydraulic) up to 15,000 psi connect with HO Series Nipples.
Parker's HO Series are high pressure, steel, high flow quick couplings with manual sleeves. Couplers and nipples are unvalved, resulting in straight through, unrestricted flow. Electroless nickel plating provides corrosion resistance and sleeve lock guards against accidental disconnection.

Technical Characteristics:
• Sizes: 1/4”, 3/8", 1/2”
• Material: Steel with electroless nickel plating
• Port Ends: Female NPTF
• Seal Options: Nitrile, EPR, Fluorocarbon, Neoprene

Markets:  
• Pulp and paper
• Oil and gas
• Testing

Features/Benefits:
• Sleeve lock guards against accidental disconnection
• Straight through, unvalved design provides full flow with minimal pressure drop
• Electroless nickel plating adds corrosion resistance

Applications:  
• Paper and pulp processing
• Refinery systems
• Testing systems