High Pressure, High Flow, Steel Quick Couplings with Sleeve Lock - HO Series | Product Series

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High Pressure, High Flow, Steel Quick Couplings with Sleeve Lock - HO Series

High Pressure, High Flow, Steel Quick Couplings with Sleeve Lock - HO Series

Where to Buy

Parker's high pressure and high flow quick couplers are ideal for use with high pressure hydraulic applications where fluid lines require fast and easy connection and disconnection while providing maximum flow and low pressure drop.

Technical Specifications

  • Application: High Pressure Hydraulics, High Flow
  • Maximum Operating Pressure: 15000.0 psi, 1034.0 bar
  • Product Type: Manual Connect
  • Maximum Operating Temperature: 250 °F, 121 °C
  • Valve Type: n/a
  • Minimum Operating Temperature: -40 °F
  • Body Size: 1/4 to 1/2 inch
  • Flow Rate: 3 to 12 Gal/min
  • Connection Type: Female NPTF
  • Vacuum Pressure Rating: No
  • Locking Sleeve Included: Yes
  • Body Material: Steel
  • Hex Size: 0.81 to 1.25 inch
  • Seal Material: Nitrile with PTFE Backup
  • Connection Thread Size: 1/4"-18 to 1/2"-14 inch
  • Plating Type: Electroless Nickel

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Full Product Description

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

Related Documents

Compliance, Certifications & Safety
Safety Guide: Quick Couplings and Related Accessories
Literature and Reference Materials
Catalog 3800 Quick Coupling Products
Fluid Compatibility Chart
Port End Assembly Guide
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Products Coupling Half Maximum Operating Pressure Connection Type Connection Thread Size
HO-251-4FP Female Coupler 15000.0 Female NPTF 1/4 - 18
HO-252-4FP Male Nipple 15000.0 Female NPTF 1/4 - 18
HO-371-6FP Female Coupler 15000.0 Female NPTF 3/8 - 18
HO-372-6FP Male Nipple 15000.0 Female NPTF 3/8 - 18
HO-501-8FP Female Coupler 10000.0 Female NPTF 1/2 - 14
HO-502-8FP Male Nipple 10000.0 Female NPTF 1/2 - 14

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