Overview
The Parker 451TC-20 is a medium-pressure constant working pressure hydraulic hose designed for petroleum-based hydraulic fluids and lubricating oils. This hose combines proven reliability with easy installation, featuring a flexible design with one-half SAE 100R1 minimum bend radius that simplifies routing in tight spaces.
Key Features
- 3000 PSI (21.0 MPa) constant working pressure — reliable performance across standard industrial hydraulic applications
- MSHA-accepted synthetic tough rubber cover — superior abrasion resistance and regulatory compliance
- Nitrile inner tube — proven compatibility with mineral-based hydraulic fluids
- Twin-wire braid reinforcement — consistent pressure containment and durability
- Flexible design — reduces bend radius requirements, simplifying installation
Technical Specifications
- Working Pressure: 3000 PSI (21.0 MPa)
- Nominal ID: 1-1/4 inch (31 mm)
- Inner Tube: Nitrile rubber
- Reinforcement: Two braids of steel wire
- Cover: Synthetic rubber, abrasion resistant, MSHA accepted
- Temperature Range: -40°F to +212°F (-40°C to +100°C)
- Standards: Exceeds SAE 100R17, meets ISO 11237-1 Type R17
- Series: 451TC Constant Working Pressure Hose
Typical Applications
The Parker 451TC-20 is widely used in:
- Industrial machinery hydraulic circuits
- Agricultural and mobile equipment systems
- Construction and mining hydraulic systems
- Material handling and press equipment
- Any standard 3000 PSI hydraulic application requiring abrasion resistance
Compatibility & Replacements
Compatible With
- Parker 43-series hydraulic fittings
- Standard JIC and SAE port configurations
- Petroleum-based mineral hydraulic fluids
- Industrial hydraulic systems operating at 3000 PSI nominal
Replaces / Drop-In Replacement For
The 451TC-20 is part of the Parker 451TC series and is compatible with legacy Parker hose systems. Verify specific replacement compatibility with your system integrator before ordering, as obsolete models may have dimensional or fitting variations.
Works With
- Parker manifold and valve systems
- Standard SAE 100R17-compliant hydraulic equipment
- Most industrial hydraulic pumps and motors
- Parker Hannifin Hose Products Division ecosystem





