Parker Hannifin

Ready to order high performance proportional pressure control for your application? Use our locator to find the Next-Generation Proportional Valves.
NEXT-GENERATION PROPORTIONAL VALVES
6 New Product Lines. 5000 psi. Common Coil Platform.
Parker’s electro‑proportional pressure control valves help OEMs bring electronic precision to hydraulic systems. By converting an electrical command into smooth, continuous pressure control, Parker proportional valves enable smarter machine functions such as automated load management, adaptive pressure limiting, and repeatable performance across changing duty cycles and ambient conditions.
As equipment evolves toward higher efficiency, tighter controllability, and increased electrification, OEMs need hydraulic components that respond predictably to software commands and integrate cleanly with modern electronic controls. Parker is advancing proportional valve technology with next‑generation designs that improve low‑flow stability, expand pressure setting options, and standardize key interfaces to simplify machine integration and service. The result is a scalable proportional pressure control portfolio that supports both mobile and industrial platforms, helping customers reduce development time while improving machine performance and uptime.
ERVD081D/R
ERVP102D/R
EPRP083D/103D

How It Works
A proportional pressure control valve uses an electromagnetic coil to generate controlled magnetic force. A current‑controlled valve driver typically uses PWM to regulate coil current, producing smooth, repeatable actuation. As commanded current changes, the coil force moves an internal control element such as a pilot stage or spool against hydraulic forces and a spring, shifting the valve to a new pressure setting.

In proportional relief valves, the valve protects a pressure line by opening to tank when system pressure reaches the electronically commanded setting, limiting maximum pressure. Adjusting coil current shifts the opening point, enabling continuous pressure changes during operation.

In proportional reducing and relieving valves, the valve regulates inlet pressure to a control port to maintain commanded downstream pressure. If control‑port pressure rises above the setting due to external forces, the valve relieves excess pressure to a relieving port to hold the desired level.
How It Works

Features & Benefits
Better Pressure Control Where it Matters:
  • Improved low-flow pressure stability
  • Wider pressure setting options
  • Low hysteresis
Faster Upgrades, Less Redesign:
  • Direct cavity replacement for older products
  • Common coil size across all valve series (1/2" CCP Series)
  • More cost competitive for customer integrated systems and manifold packages
Electronics and Efficiency:
  • Rated pressure: 5000 psi
  • PWM frequency: 200-600 Hz
  • Low power: 12 W typical, but as low as 8.4 W
Aerial lift application
Resources
Next-Gen Lineup and Legacy Replacements

Where to Buy
Where to buy E2*1 Series Counterbalance Valves
These valves can be purchased through any authorized Parker distributor. For assistance in locating the nearest Parker distributor partner, click the link below: 
Have a Question?
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