VR032AA035V21 24VDC Proportional Solenoid Valve For CAT C7.1 C9 C13 C18

• Model Number: VR032AA035V21
• Working Voltage: 24VDC
• Product Name: Hydraulic Proportional Solenoid Valve / Pilot Proportional Valve
• Compatible Equipment: CAT Excavator
• Matching Engines: CAT C7.1, C9, C13, C18 Series Diesel Engines
• Connector: Gray Deutsch 2-pin plug, corrugated protective wiring harness
• Protection Grade: Waterproof, dustproof, shock-resistant for construction machinery harsh environment
• Core Function: Electro-hydraulic proportional control, adjust hydraulic oil flow and pressure in real time according to electrical signal, control engine fuel injection or hydraulic pump output to realize speed and power regulation

1. Standard 24V DC working voltage, perfectly match CAT heavy-duty machine electrical system, stable electromagnetic response without voltage drift.
2. Integrated sealing structure with high precision valve core, strong anti-pollution ability, adapt to dirty hydraulic oil in engineering equipment.
3. Complete with original style Deutsch connector and spiral cable sleeve, effectively prevent wire abrasion, short circuit and water ingress.
4. Accurate proportional output ensures smooth engine power output, reduces jitter, fuel consumption and hydraulic system abnormal pressure alarm.

VR032AA035V21 is a high-precision hydraulic proportional solenoid valve specially designed for CAT large excavator C7.1, C9, C13, C18 engines. It receives variable current signals from the ECU, converts electrical signals into proportional hydraulic pressure output, controls the displacement of hydraulic main pump or fuel injection system, and realizes stepless adjustment of engine load and rotational speed. This component is a key part of the CAT electronically controlled hydraulic system; failure will lead to engine power limitation, slow action, high fuel consumption, system fault code reporting and other problems. All valves pass electrical continuity test, pressure sealing test and proportional curve calibration before delivery.

We supply parts for Kubota, Cumm ins, CAT, Perkins, Yanmar, Isuzu, Komatsu, Mitsubishi, Hino, Nissan, Vo lvo, Deutz, Doosan, Daewoo, John De ere, Scania, Hyundai, JCB etc.

A: Excavator weak power, slow boom/arm movement, engine derating, hydraulic system pressure unstable, ECU triggers solenoid valve circuit fault code, abnormal machine vibration under load.

A: Clean the valve mounting seat and hydraulic oil circuit thoroughly before installation to avoid metal particles scratching the valve spool; strictly follow the wiring definition for pin connection, do not reverse positive and negative poles; test the proportional response with diagnostic instrument after assembly.

A: Mainly for CAT large mining excavators, loaders and generators equipped with C7.1, C9, C13, C18 industrial diesel engines.