11075255 Danfoss PVHC24 Actuator 24V 2×2 DEUTSCH IP67 PVG32

Product Overview

The 11075255 is a Danfoss PVHC24 electro-hydraulic actuator designed for PVG32 and PVG100 proportional valve groups. As a high-current PWM-controlled actuation module, it provides precise main spool positioning through dual-channel Pulse Width Modulated (PWM) control signals.

Operating on a 24V DC power supply with a 2×2 DEUTSCH connector (DT04 series), the 11075255 features IP67 ingress protection for reliable operation in demanding mobile and industrial hydraulic environments.

The actuator positions the main spool by distributing pilot oil pressure to either side—pressurizing one side while relieving the opposite side to tank. As a direct OEM replacement for the original Danfoss component, the 11075255 offers complete physical interchangeability—no modifications to valve manifold interfaces or pilot oil circuitry are required.

Critical Note: The PVHC series utilizes high-current PWM signal control and is not compatible with PVE series (voltage signal control). The PVHC actuator does not incorporate LVDT closed-loop control or fault monitoring functionality. Verify that your system controller output type matches this actuator before selection.

Technical Specifications 

• Model Number: 11075255 / PVHC24

• Product Type: Electro-Hydraulic Actuator

• Compatible Valve Groups: Danfoss PVG32, PVG100 Proportional Valve Groups

• Supply Voltage: 24 V DC

• Current Input: 0 – 750 mA

• Coil Resistance: 20.8 Ω ± 5%

• Response Time: 150 – 200 ms

• PWM Frequency: 100 – 400 Hz

• Pilot Oil Pressure Range: 20 – 25 bar (290 – 362 psi)

• Ambient Temperature Range: -30°C to 80°C (-22°F to 176°F)

• Fluid Temperature Range: -20°C to 80°C (-4°F to 176°F)

• Fluid Cleanliness: ISO 4406 23/19/16

• Connector Type: 2×2 DEUTSCH (DT04 series)

• Protection Class: IP67

• Weight: Approx. 0.9 kg

Key Technical Advantages

1. High-Current PWM Proportional Control – Precise Main Spool Positioning

The PVHC24 employs dual-channel Pulse Width Modulated (PWM) high-current drive control with an input current range of 0 – 750 mA. Unlike PVE-series voltage control, the PVHC’s high-current PWM architecture offers superior noise immunity in electrically harsh environments, ensuring precise spool positioning under vibration and temperature variations. With a response time of just 150 – 200 ms, the actuator delivers fast, accurate flow regulation.

2. 2×2 DEUTSCH Waterproof Connector – Reliable Electrical Interconnection

Equipped with a 2×2 DEUTSCH industrial-grade waterproof connector (DT04 series), the actuator provides exceptional vibration resistance, corrosion protection, and moisture sealing. DEUTSCH connectors are widely adopted in mobile machinery and construction equipment, with positive-lock designs that prevent disconnection due to machine vibration, ensuring long-term electrical signal integrity.

3. IP67 Ingress Protection – Extreme Environment Durability

Rated to IP67, the actuator is fully dust-tight and capable of withstanding temporary immersion in water (1 meter depth, 30 minutes) without compromise. This makes it ideally suited for demanding outdoor applications—mining equipment, construction machinery, and agricultural implements—where exposure to dust, moisture, and even water submersion is routine, significantly enhancing reliability and service life.

4. Optimized Dither Technology – Hysteresis Reduction

Danfoss has specified an optimized PWM frequency range (100 – 400 Hz) for the PVHC actuator. Proper dithering effectively reduces spool hysteresis, improving proportional control linearity and repeatability. Hysteresis is influenced by fluid viscosity, friction, flow forces, and modulation frequency—optimizing PWM parameters is essential for achieving peak control performance.

5. Dual Proportional Pressure Reducing Valve Design – High-Response Pilot Control

The PVHC actuator incorporates two current-controlled proportional pressure reducing valves that independently regulate pilot pressure on each side of the main spool. This design enables independent, precise pilot pressure modulation, resulting in faster, smoother main spool response—particularly advantageous in applications demanding high dynamic performance.

Application Areas

The 11075255 PVHC24 electro-hydraulic actuator is widely deployed in proportional hydraulic control systems across the following equipment categories:

• Mobile Cranes & Loader Cranes – Slewing, derricking, and telescopic boom control

• Aerial Work Platforms – Boom extension and platform leveling control

• Agricultural Machinery – Combine harvesters, sprayers, and fertilizer spreaders

• Construction & Earthmoving Equipment – Excavators, wheel loaders, and auxiliary hydraulic functions

• Material Handling Equipment – Forklifts and telescopic handler hydraulic systems

• Forestry Machinery – Feller bunchers and skidders with proportional valve control

• Industrial Automation – Industrial hydraulic systems requiring proportional flow/pressure control

Expert Maintenance Tips

1. Pilot Pressure Verification

Proper PVHC24 actuator operation requires stable pilot oil pressure. Confirm that system pilot pressure is maintained within 20 – 25 bar. Insufficient pilot pressure results in incomplete spool stroke or sluggish response, while excessive pressure may damage internal actuator components.

2. Fluid Cleanliness Management

The PVHC series demands strict fluid cleanliness—ensure filtration meets ISO 4406 23/19/16 or higher. Contaminants in the pilot oil can block pilot circuit orifices, directly compromising spool control accuracy and response speed. Regularly inspect filter elements to maintain required cleanliness levels.

3. PWM Signal Parameter Configuration

For optimal control performance, ensure controller PWM frequency is set within 100 – 400 Hz. Improper PWM frequency settings may cause spool oscillation, increased noise, or degraded control precision.

4. Electrical Connection Inspection

The 11075255 features a 2×2 DEUTSCH waterproof connector. Before installation, inspect connector pins for bends, corrosion, or debris, and ensure secure mating with an audible “click” from the locking mechanism. Danfoss OEM wiring harnesses are recommended for reliable electrical contact and maintained ingress protection.

5. Selection Compatibility Confirmation

The PVHC series utilizes high-current PWM signal control and is not compatible with PVE series (voltage signal control). When selecting or replacing, verify that your system controller output type matches the 11075255. For 12V system requirements, specify Danfoss counterpart model 11112038.