Danfoss PVEH Actuator | 157B4028 157B4012 | 12V 24V Hydraulic Proportional Valve Control

Danfoss PVEH High-Dynamic Proportional Actuators

Product Overview:

The Danfoss PVEH is the premier choice for high-dynamic response performance within the PVG proportional valve system. This page features the core part numbers 157B4028 and 157B4012. As the “High-Performance” version of the PVE series, PVEH actuators achieve precise closed-loop control of spool positions via integrated LVDT displacement sensors. Compatible with both 12V and 24V electrical systems, it delivers superior linearity and ultra-low hysteresis, making it ideal for excavators, aerial platforms, and cranes requiring master-level metering precision.

Key Technical Advantages:

• Superior Dynamic Response: Engineered for high-frequency switching and precision control, the PVEH responds significantly faster than standard PVEM modules for instantaneous machine feedback.

• Multi-Voltage Compatibility: Supports both 12V DC and 24V DC operation (auto-adjusts between 11V and 32V), fitting diverse mobile machinery architectures.

• Closed-Loop Feedback: Integrated inductive sensors provide real-time spool position correction, minimizing hysteresis to ultra-low levels (Typical $\le 0.5\%$).

• Digital Diagnostics: Features an integrated LED status indicator. Solid green indicates normal operation, while flashing red signals command errors or spool sticking, simplifying troubleshooting.

• Rugged Construction: Rated at IP67, these modules are built to withstand the intense vibrations, high temperatures, and harsh climates common on construction sites.

Detailed Specifications & Model Matrix:

• Featured Model Matrix:

  • 157B4028: PVEH High-end Proportional Module, supporting standard analog commands.

  • 157B4012: PVEH Classic Series Actuator, optimized for PVG 32 valve manifolds.

• Technical Specifications:

  • Supply Voltage: 11V – 32V DC.

  • Command Signal: Ratiometric voltage or standard analog input.

  • Response Frequency: Optimized for rapid step-response and high-frequency duty cycles.

  • Repeatability: $\le 0.25\%$.