157B4228 Danfoss PVEO32 Actuator 11166743 24V On/Off

Product Overview

The Danfoss PVEO32 Electrical Actuator (legacy code 157B4228, recommended replacement 11166743) is an ON/OFF electro-hydraulic actuator designed for the PVG32 proportional valve group. It uses a fixed 24 V DC supply and 1×4 DIN/Hirschmann connector to shift the main spool between neutral and full stroke via pilot oil. Fully interchangeable with genuine Danfoss PVG32 valve bodies, the Series 7 version offers improved encapsulation, corrosion protection and response consistency. Every unit is 100% duty-cycle tested for reliable performance under vibration, dust and temperature extremes typical of mobile hydraulic equipment.

Technical Specifications 

• Model: PVEO32 / 157B4228 (recommended replacement 11166743, Series 7)
• Type: ON/OFF electro-hydraulic actuator (non-proportional)
• Supply Voltage: 24 V DC
• Control Signal: On/Off (energized = full stroke; de-energized = neutral)
• Pilot Pressure: Nominal 13.5 bar
• Connector: 1×4 DIN 43650-A / ISO4400 (Hirschmann), 90° upward
• Ingress Protection: IP65
• Coil Power: Approx. 5 W (Series 7) / approx. 8 W (legacy)
• Response Time: Stroke ≈120 ms class (Series 7 typical)
• Nominal Stroke: 7 mm (A/B directions)
• Valve-Side Interface: PVE32 O-ring
• Maximum System Pressure Peaks: 60 bar
• Weight: Approx. 0.7–1.0 kg
• Certification: CE, ISO13849 compliant

Key Technical Advantages

1. 100% drop-in interchangeability: Direct mechanical and electrical compatibility with original Danfoss PVG32 valve bodies and the legacy 157B4228 — no modifications to mounting or wiring required.
2. Simple and robust ON/OFF control: Fixed 24 V supply and straightforward circuit design deliver reliable switching for non-proportional functions with minimal failure points.
3. Enhanced protection and durability: IP65 rating, optimized encapsulation and corrosion-resistant metal parts ensure long service life in harsh mobile environments; Series 7 further improves consistency and robustness.
4. Low power consumption and compact design: Reduced coil power and short module length (approx. 89–106 mm) facilitate multi-section valve integration while minimizing heat generation and space requirements.

Application Areas

• Construction machinery (excavators, loaders, cranes) for non-proportional auxiliary or switching functions
• Agricultural and forestry equipment requiring reliable hydraulic on/off control
• Material-handling equipment (forklifts, reach stackers) and specialty vehicles
• Mobile hydraulic systems matched to PVG32 valve groups where simple directional switching is sufficient

Expert Maintenance Tips

Verify pilot-oil cleanliness meets or exceeds ISO 4406 18/16/13 and inspect the PVE32 interface O-ring before installation. Connect the 24 V supply strictly according to the DIN pin assignment; avoid reverse polarity or mixing with proportional signal lines. Periodically check connector seals and power LED status (if present) and maintain pilot pressure near 13.5 bar. Prefer the 11166743 Series 7 version for improved corrosion resistance and response consistency. Protect the valve-body interface surfaces during removal/installation to prevent contamination of the pilot circuit.