PVEH-Ex24V/12V/11-32V Actuator 157B4054 157B4063 157B4082 157B4033

Product Overview

The PVEH series electro-hydraulic proportional actuators are high-performance members of the Danfoss PVE actuator family. The PVEH is a high-performance proportional control actuator with closed-loop spool control, primarily used to control work functions with demanding precision and response requirements. An embedded LVDT position sensor provides real-time spool position feedback, and a micro-controller processes the signal voltage and feedback signal to precisely regulate solenoid valves that drive the main spool.

This product offers a complete range of PVEH series electro-hydraulic actuators—including standard, wide-voltage, and ATEX explosion-proof versions, covering models 157B4054 (PVEH-Ex 24V) , 157B4063 (PVEH-Ex 24V) , 157B4082 (PVEH 12V) , and 157B4033 (PVEH 11-32V PASS) —as direct drop-in replacement alternatives for original Danfoss PVE actuators. All actuators are manufactured to strict OEM specifications and undergo 100% real-world condition simulated testing, ensuring seamless integration with existing systems without any modification required.

Core Value Proposition:

• Direct Interchangeability: Full dimensional, interface, and electrical compatibility with original Danfoss PVE actuators

• 100% Simulated Condition Testing: Complete validation of response characteristics and fault monitoring under actual operating parameters prior to shipment

• High-Performance Closed-Loop Proportional Control: Closed-loop architecture with high-resolution precision regulation

• Multiple Voltage Options & ATEX Certified: Available in 12V, 24V, 11-32V wide voltage, and ATEX explosion-proof versions

Technical Specifications 

Valve Family Compatibility

• PVG32 / PVG100

Actuator Type

• PVEH: High-performance proportional control actuator (closed-loop)

Supply Voltage

• 157B4054 (PVEH-Ex 24V) : 24 VDC

• 157B4063 (PVEH-Ex 24V) : 24 VDC

• 157B4082 (PVEH 12V) : 12 VDC

• 157B4033 (PVEH 11-32V PASS) : 11-32 VDC

Pilot Pressure (Standard PVE)

• Minimum: 10.0 bar

• Nominal: 13.5 bar

• Maximum: 15.0 bar

Control Signal

• Analog voltage proportional signal, 25–75% of supply voltage

• Recommended PWM frequency: > 1000 Hz

Input Impedance

• 12 kΩ

Input Capacitance

• 1 nF

Current Consumption

• @ 12V: 540 mA

• @ 24V: 270 mA

Protection Class

• IP65

Operating Temperature Range

• -40°C to +90°C

Recommended Fluid Viscosity

• 12-75 cSt

Fault Monitoring

• 157B4054: ATEX explosion-proof type

• 157B4063: ATEX explosion-proof type, passive fault monitoring

• 157B4082: Standard type

• 157B4033: Passive fault monitoring

Connector Type

• 157B4033: 1×4 DIN 43650-A / ISO4400 (Hirschmann)

• 157B4063: ATEX dedicated connector

Weight

• 157B4054: approx. 1.0 kg

• 157B4082: approx. 1.0 kg

• 157B4033: approx. 0.88-1.03 kg

Certifications

• 157B4054 / 157B4063: ATEX certified

• CE marked

157B Series Model List

• 157B4054: PVEH-Ex 24V electro-hydraulic actuator, ATEX explosion-proof, 24V DC

  • Type: PVEH-Ex (ATEX explosion-proof)

  • Compatible with: PVG series proportional valves

  • Weight: approx. 1.0 kg

  • Series 0

• 157B4063: PVEH-Ex 24V electro-hydraulic actuator, ATEX explosion-proof, 24V DC

  • Type: PVEH-Ex (ATEX explosion-proof)

  • Compatible with: PVG32, PVG100

  • Function: Proportional control

  • Series: Series 4

  • Fault monitoring: Passive

  • Superseded by 11084101

• 157B4082: PVEH electro-hydraulic actuator, 12V

  • Type: PVEH (high-performance proportional control)

  • Compatible with: PVG series proportional valves

  • Weight: approx. 1.0 kg

  • Series 0

• 157B4033: PVEH electro-hydraulic actuator, 11-32V PASS

  • Type: PVEH (high-performance proportional control)

  • Control signal: Ratiometric

  • Fault monitoring: Passive

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

  • Protection: IP65

  • EX Certified: No

  • Series: Series 7

  • Superseded by 11166824

Key Technical Advantages

1. High-Performance Closed-Loop Proportional Control — High-Resolution Precision Regulation
The PVEH actuator employs a closed-loop control architecture with an embedded LVDT position sensor providing real-time spool position feedback. An embedded micro-controller processes the signal voltage and feedback signal, precisely regulating solenoid valves to drive the main spool. The closed-loop design ensures precise linear correspondence between electronic control signals and spool displacement, delivering significantly improved spool positioning accuracy and repeatability.

2. Multiple Voltage Options with ATEX Explosion-Proof Available
The PVEH series offers multiple voltage specifications: 12V (157B4082), 24V explosion-proof (157B4054/157B4063), and 11-32V wide voltage (157B4033). Models 157B4054 and 157B4063 are ATEX explosion-proof certified, making them suitable for hazardous area applications where explosive gas or dust atmospheres may be present—providing safety assurance for mining machinery, petrochemical equipment, and other special operating conditions.

3. Flexible Fault Monitoring Options — Active and Passive Available
The PVEH series offers both active and passive fault monitoring options:

• Active: Continuously monitors actuator electrical status, automatically transmitting fault signals upon detecting anomalies

• Passive (e.g., 157B4033, 157B4063) : Displays error states via LED indicators, with diagnostic information read by the controller
  Both options effectively enhance system safety and maintainability.

4. Wide Voltage Multi-Voltage Power Supply and Broad Valve Group Adaptability
PVEH actuators support an 11-32V DC wide input voltage range (157B4033), allowing a single actuator to accommodate both 12V and 24V mainstream vehicle power systems. Actuators are compatible with Danfoss PVG32 and PVG100 proportional valve groups, covering diverse application needs from compact to large-scale equipment.

5. Rugged IP65 Protection and Extreme Environmental Tolerance
PVEH actuators feature IP65 protection, effectively resisting dust ingress and low-pressure water jets. The operating temperature range spans -40°C to +90°C, with recommended fluid viscosity of 12-75 cSt, ensuring reliable electrical performance and mechanical actuation under extreme cold, high-temperature, and challenging fluid conditions.

6. Standardized Interface and Quick Replacement Capability
PVEH actuators feature the 1×4 DIN 43650-A/ISO4400 (Hirschmann) standardized electrical interface, combined with unified Danfoss PVE series mechanical mounting dimensions, enabling replacement within minutes without special tools, dramatically reducing equipment downtime.

Application Areas

• Mobile Cranes and Knuckle Boom Cranes: High-precision proportional control for boom, telescopic, and slewing functions

• Aerial Work Platforms: Smooth proportional regulation and precise positioning of boom movements

• Agricultural Machinery: High-performance electro-hydraulic proportional drive for tractor hydraulic hitch systems and combine harvester working mechanisms

• Material Handling Equipment: Precise hydraulic system flow distribution for forklifts and reach stackers

• Construction Equipment: Fine proportional control for attachment hydraulic tools on excavators and loaders

• Mining and Explosion-Proof Equipment (157B4054/157B4063): Electro-hydraulic proportional control for hydraulic valves in hazardous areas

• Marine and Offshore Engineering: Hydraulic proportional control for deck cranes, hatch covers, and winches

• Industrial Hydraulic Systems: Electronic control drive for high-precision proportional valves on stationary equipment

Expert Maintenance Tips

1. Model Confirmation and Replacement Relationships
The PVEH series has undergone multiple generational changes. Before installation, confirm the replacement relationship for your specific model:

• 157B4033 has been superseded by 11166824

• 157B4063 has been superseded by 11084101

It is recommended to select the latest code models (11166824 replacing 157B4033; 11084101 replacing 157B4063) for long-term supply availability and after-sales support.

2. Electrical Connection Inspection
Prior to installation, verify that the connector type matches your system wiring harness:

• 157B4033: 1×4 DIN 43650-A / ISO4400 (Hirschmann)

• 157B4063: ATEX dedicated connector
  Ensure the locking mechanism is fully engaged during connection to prevent loosening due to vibration.

3. Pilot Pressure Verification
PVEH actuators require a stable pilot oil supply pressure for proper operation. Standard PVE actuators require a pilot pressure range of 10.0-15.0 bar, with a nominal value of 13.5 bar. IMPORTANT: Standard PVE electrical modules CANNOT operate at 25 bar pilot pressure! Verify that system pilot pressure meets actuator specifications before installation.

4. Supply Voltage Verification

• 157B4082 (12V rated): Verify voltage is within 11-15V range

• 157B4054/157B4063 (24V explosion-proof): Verify voltage is within 22-30V range

• 157B4033 (11-32V wide voltage): Verify voltage is within 11-32V range with ripple not exceeding 5%

5. PWM Signal Requirements
PVEH is a high-performance proportional control actuator requiring PWM (Pulse Width Modulation) control signals. Recommended PWM frequency > 1000 Hz. Signal voltage mapping is as follows:

• Neutral: Uₛ = 0.5 × U_DC (50% DUT)

• P→A direction: Uₛ = 0.5 to 0.25 × U_DC (50% to 25% DUT)

• P→B direction: Uₛ = 0.5 to 0.75 × U_DC (50% to 75% DUT)

6. Special Precautions for Explosion-Proof Models (157B4054 / 157B4063)
Models 157B4054 and 157B4063 are ATEX explosion-proof certified. Installation and maintenance must strictly comply with hazardous area operation regulations:

• Never remove or replace the actuator while energized

• Ensure cable entry devices are properly sealed and meet explosion-proof requirements

• Use only certified explosion-proof connectors and cables

• Regularly inspect housing integrity—replace immediately if cracks or damage are found

7. Spare Parts Strategy
It is recommended to keep 1-2 commonly used actuator models as on-hand spares. Thanks to the modular PVEH actuator design, faulty units can be replaced quickly during short service interruptions. It is advisable to stock the latest code models (11166824 replacing 157B4033; 11084101 replacing 157B4063).