Overview
The Danfoss Vickers C-175-C-20 is a pilot-operated relief valve designed for compact hydraulic systems requiring precise overpressure protection. This valve handles flows up to 3 GPM and adjusts across a 500–2000 psi range, making it suitable for mobile equipment, test stands, and industrial machinery. The panel-mount design and 1/4″ NPT female ports integrate easily into existing manifolds and circuit boards.
Key Features
- Pilot-operated design for smooth, stable pressure regulation
- Adjustable relief setting from 500 to 2000 psi (35–140 bar)
- Flow capacity: 3 GPM (11.4 L/min)
- Panel-mount configuration for ductboard and sandwich-cavity integration
- Fluorocarbon internal seals for long service life and fluid compatibility
- Cast iron body resists wear and corrosion in demanding hydraulic environments
Technical Specifications
- Maximum Operating Pressure: 2000 psi (140 bar)
- Pressure Range (Adjustable): 500–2000 psi (35–140 bar)
- Maximum Flow Rate: 3 GPM (11.4 L/min)
- Port Size: 1/4″ NPT female
- Mounting Type: Panel mount
- Connection Gender: Female
- Body Material: Cast iron
- Seal Material: Fluorocarbon (internal), Nitrile (mounting surface)
- Actuation Method: Pilot-operated
- Operating Temperature Range: Up to +155 °F (68 °C)
- Overall Dimensions: 2.88 in length × 73.2 mm width × 204.9 mm height
- Fluid Compatibility: Hydraulic oil
Typical Applications
- Mobile hydraulic equipment (loader arms, backhoes, boom lifts)
- Industrial press and shear machinery
- Test and calibration rigs for hydraulic systems
- Compact manifold-mounted systems with space constraints
- Overpressure protection in proportional and directional control circuits
Compatibility & Replacements
Compatible With
- Vickers C-175 series manifold cavity systems
- SAE standard 1/4″ NPT porting hydraulic circuits
- Hydraulic systems operating on mineral oil and compatible synthetic fluids
- Ductboard and sandwich cavity applications
Replaces / Drop-In Replacement For
- Earlier Vickers C-175-C-20 production runs
- Verify compatibility with your system integrator before ordering for specific cross-reference models
Works With
- Danfoss pilot relief valve networks (C-175 series and CGR-02 valves)
- Vickers proportional directional control valves (CG2V, CG5V, CG10 series)
- Standard hydraulic manifold mounting plates and adapter kits
- Manual and remote pressure adjustment systems
