Overview
The Snap-Tite VHC-17 is a valved hydraulic quick-disconnect coupling manufactured by Parker Hannifin, a global leader in motion and control technologies. This coupling belongs to Parker’s proven H-Series line, engineered for general-purpose hydraulic and pneumatic applications requiring frequent connection and disconnection with positive fluid shut-off.
Key Features
- Double Shut-Off Poppet Valves: Integrated valves on both coupler and nipple sides prevent spillage and fluid loss during disconnect operations
- Manual Sleeve Lock Design: Slide-back sleeve mechanism allows one-handed operation for reliable connect and disconnect cycles
- Versatile Material Options: Available in steel, brass, aluminum, and 316 stainless steel to match specific fluid compatibility and corrosion resistance requirements
- Multiple Thread Configurations: Supports both NPT and NPSF female thread connections for broad system compatibility
- Pressure Relief Feature: Poppet valves include built-in pressure relief to enable connection under static pressure conditions
- Proven Reliability: Decades of field-proven performance in hydraulic systems, fuel systems, and high-reliability industrial equipment
Technical Specifications
- Manufacturer: Parker Hannifin Corporation (Quick Coupling Division)
- Series: H-Series (Valved)
- Type: Hydraulic Quick-Disconnect Coupler — Female Thread
- Body Material: Steel (Zinc-Plated) / Brass / Aluminum / 316 Stainless Steel (configuration-dependent)
- Valve Configuration: Double Shut-Off Poppet Valves
- Operating Principle: Manual Sleeve, Valved
- Thread Types Supported: NPT (National Pipe Thread), NPSF (National Pipe Straight Mechanical)
- Media Compatibility: Hydraulic fluids, pneumatic air, gases, compatible fluids per ASTM D6158 or equivalent
- Pressure Range: Varies by size; typical working pressure 140–450 bar (2,000–6,500 psi) depending on nominal passage size
- Temperature Range: Standard operating range per Parker specification; consult datasheet for extremes
- Connection Method: Slide-back sleeve lock with push-to-connect feature
- Standards Compliance: ANSI/NFPA T3.20.15-1991, HTMA specifications
Typical Applications
- General-purpose hydraulic systems requiring frequent line breaks and connections
- Fuel transfer and storage systems with zero-spillage requirements
- High-reliability industrial hydraulic equipment and machinery
- Mobile and portable hydraulic tools and construction equipment
- Pneumatic air lines in manufacturing and automation systems
- Electronic coolant and specialty fluid systems
- Equipment maintenance and service points requiring rapid disconnect capability
Compatibility & Replacements
Compatible With
- Parker Snap-Tite H-Series nipples (plugs) of the same coupling size
- ISO 16028 standard quick-disconnect mate couplings of equivalent size
- Industrial hydraulic systems using standard hydraulic fluids (MIL-H-6083 equivalent, ISO VG 46)
- Pneumatic air systems operating at standard industrial pressures
- Systems with NPT or NPSF female thread ports
Replaces / Drop-In Replacement For
- Other Parker Snap-Tite H-Series couplers of the same size and thread configuration
- Equivalent valved quick-disconnect couplings from other manufacturers in the same coupling size class
- Verify exact part number match with your OEM documentation or system integrator before ordering
Works With
- Parker Hannifin hydraulic hoses and fittings
- Standard industrial hose assemblies with barbed or threaded ends
- Pneumatic tubing and hose systems
- Manual or automated fluid transfer equipment
- All standard hydraulic fluids and compatible media per Parker guidelines
