157B4024 157B4792 157B4832 | Danfoss PVG32 Proportional Valve Actuator PVE

Product Overview

The 157B4024 / 157B4792 / 157B4832 are electro-hydraulic actuators (PVE, Proportional Valve Actuator) from Danfoss Power Solutions, designed for the PVG32 proportional valve group. These actuators mount directly onto Danfoss PVG32 load-independent proportional directional valves, enabling precise proportional control of spool displacement—and therefore flow and direction—through electrical input signals.

Manufactured to strict Danfoss original specifications, these actuators deliver consistent performance in material quality, machining precision, sealing integrity, and factory testing. Every unit undergoes 100% full-load simulation testing prior to shipment, validating pressure, flow, and directional cycling performance under real-world operating conditions. The actuators offer complete interchangeability with original Danfoss PVE series units—no modifications to mounting interfaces or electrical connections are required, significantly reducing equipment downtime and retrofitting costs.

Model Reference:

• 157B4024: Danfoss PVEH electro-hydraulic actuator, 24V DC, for PVG32 proportional valve

• 157B4792: Danfoss PVEA electro-hydraulic actuator, 11-32V DC, 1×4 DEU connector, Active fault monitoring, replaced by 11177347

• 157B4832: Danfoss PVES electro-hydraulic actuator (Proportional Super), 11-32V DC, Hirschmann (DIN) connector, Active fault monitoring, replaced by 11166857

Technical Specifications 

157B4024 (PVEH Type)

• Model Number: 157B4024

• Brand Series: Danfoss Power Solutions PVEH Series

• Product Type: Electro-Hydraulic Actuator

• Compatible Valve: Danfoss PVG32 Proportional Valve

• Actuator Type: PVEH (Proportional High Performance)

• Rated Voltage: 24 V DC

• Fault Monitoring: Passive Monitoring

• Protection Class: IP65 (IEC 60529)

• Hydraulic Fluid: Mineral-based hydraulic oil

• Filtration Requirement: ISO 4406 18/16/13

• Weight: Approx. 0.9 kg

• Country of Origin: Denmark (DK)

157B4792 (PVEA Type) → Replacement 11177347

• Model Number: 157B4792 (Old) / 11177347 (New)

• Brand Series: Danfoss Power Solutions PVEA Series

• Product Type: Electro-Hydraulic Actuator

• Compatible Valve: Danfoss PVG32 Proportional Valve

• Actuator Type: PVEA (Proportional Standard)

• Voltage Range: 11 – 32 V DC

• Connector Type: 1×4 DEU (Deutsch)

• Connector Orientation: 90° (Up)

• Fault Monitoring: Active Fault Monitoring

• Control Signal: Voltage Signal (Ratiometric)

• Pilot Pressure: 13.5 bar (PVE)

• Hysteresis: 2.0%

• On-Stroke Response (A/B): 350 ms

• De-Stroke Response (A/B): 225 ms

• Steady State Oil Consumption: 0.4 L/min max

• Coil Power: 8 W

• Protection Class: IP67

• Weight: Approx. 1.0 kg

• Series: Series 7

• Product Status: Obsolete, replaced by 11177347

157B4832 (PVES Type) → Replacement 11166857

• Model Number: 157B4832 (Old) / 11166857 (New)

• Brand Series: Danfoss Power Solutions PVES Series

• Product Type: Electro-Hydraulic Actuator

• Compatible Valve: Danfoss PVG32 / PVG100 Proportional Valve

• Actuator Type: PVES (Proportional Super) — High-performance proportional closed-loop actuator

• Voltage Range: 11 – 32 V DC

• Connector Type: Hirschmann (DIN) 1×4 DIN 43650-A / ISO4400

• Fault Monitoring: Active Fault Monitoring

• Control Signal: Proportional Voltage Signal

• Pilot Pressure: 13.5 bar (PVE)

• Protection Class: IP65

• Input Signal: Voltage Signal

• CAN Protocol: None

• Hydraulic Ramp: None

• Float Position: None

• Direction Indicator: None

• Weight: Approx. 0.9 kg

• Series: Series 7

• Product Status: Obsolete, replaced by 11166857

Key Technical Advantages

1. Modular Electro-Hydraulic Actuator Design for PVG32 Valve Groups
PVE series actuators mount directly onto the pilot stage of Danfoss PVG32 valve groups, converting electrical signals into pilot pressure to precisely control main spool displacement for proportional flow and direction control. This design significantly simplifies electrification of hydraulic systems without requiring additional pilot valve groups.

2. Wide Voltage Range with Flexible Connector Options
The entire series supports 11-32 V DC wide voltage input, compatible with both 12V and 24V vehicle and industrial power systems. Multiple connector options including DEU (Deutsch) and Hirschmann (DIN) accommodate diverse OEM electrical interface standards.

3. Active Fault Monitoring with High Reliability
Both PVEA (157B4792 / 11177347) and PVES (157B4832 / 11166857) feature Active Fault Monitoring, continuously monitoring actuator and spool position status. The PVES actuator employs proportional closed-loop control with hysteresis as low as 2.0%, delivering exceptional repeatability and control stability.

4. High Ingress Protection for Demanding Environments
The series achieves IP65 to IP67 protection ratings, effectively resisting dust, oil mist, water spray, and high-pressure washdown. Wide operating temperature range (-40°C to +90°C) makes these actuators suitable for outdoor applications in construction and agricultural machinery.

5. Complete Interchangeability with Seamless Upgrade Path
157B4792 is directly replaceable by 11177347, and 157B4832 by 11166857. Old and new models share identical mounting interfaces, electrical connections, and functional specifications, enabling true “plug-and-play” upgrades with minimal equipment modification and maintenance costs.

Application Areas

• Mobile Construction Equipment: Excavators, loaders, cranes — implement proportional control

• Agricultural Machinery: Combine harvesters, tractors — hydraulic actuator control

• Material Handling Equipment: Forklifts, aerial work platforms — hydraulic systems

• Forestry Machinery: Harvesters, forwarders — proportional valve control

• Industrial Hydraulic Systems: Injection molding machines, presses, test benches — proportional directional control

• Marine & Offshore Equipment: Steering gear, winches, deck machinery — hydraulic control

Expert Maintenance Tips

1. Verify Model and Replacement Status Before Installation
157B4792 has been replaced by 11177347; 157B4832 has been replaced by 11166857. Confirm the latest model number when purchasing or replacing—old and new models are fully compatible in mounting interfaces and electrical specifications.

2. Electrical Connection Verification
Before installation, confirm supply voltage is within 11-32 V DC range. DEU (Deutsch) and Hirschmann (DIN) connectors are not interchangeable—select the correct interface type based on your original valve configuration. Shielded cables are recommended to minimize electromagnetic interference on proportional control signals.

3. Fluid Cleanliness Management
PVE actuators require fluid cleanliness to ISO 4406 18/16/13 or higher. Install a filter with ≤10μm absolute filtration upstream of the PVG32 valve group and monitor fluid contamination regularly. Contaminated fluid is the leading cause of pilot stage sticking and sluggish actuator response.

4. Pilot Pressure Verification
PVE series actuators require a pilot pressure of 13.5 bar for normal operation. Ensure the system provides stable pilot pressure above this value—insufficient pilot pressure will result in incomplete spool shifting or delayed response.

5. First-Start Commissioning Procedure
Before initial system startup, perform an air-bleed cycle at reduced pressure to purge air from the valve group and lines. Apply a low voltage signal first (approximately 25% of supply voltage) to test actuator response, then gradually increase to the operating signal range (25-75% of supply voltage). Cycle the valve several times to confirm proper operation before proceeding to full-load operation—this prevents cavitation and shock damage to spool surfaces.

6. Fault Code Diagnostics
Actuators equipped with Active Fault Monitoring (157B4792 / 11177347 / 157B4832 / 11166857) allow fault status reading via monitoring output voltage or diagnostic interfaces. If the actuator fails to respond, first check supply voltage, connector contact, and pilot pressure, then perform systematic diagnostics through the fault monitoring signal.