Komatsu PC35MR-2 20T-62-71160 Excavator Hydraulic Main Control Valve

The excavator control valve, also known as the main control valve (MCV), is a critical component in hydraulic systems of excavators and other heavy construction machinery. It regulates the flow, pressure, and direction of hydraulic oil to various actuators (such as hydraulic cylinders and motors), enabling precise control of movements like digging, lifting, swinging, and traveling.

Modern excavators rely on advanced hydraulic control valves to ensure smooth operation, energy efficiency, and safety. This guide explores the working principles, construction, functions, applications, maintenance, and future trends of excavator control valves.

List of spare parts

Working Principle

The control valve operates based on hydraulic or electro-hydraulic signals from the operator’s joystick or control system. Its primary function is to direct pressurized oil to different actuators while maintaining optimal pressure and flow.

Key Operational Mechanisms:

• Directional Control: The valve shifts its internal spool to open or close oil passages, directing flow to the desired actuator.

• Pressure Regulation: Relief valves and pressure compensators maintain system stability, preventing overload.

• Flow Control: Adjusts oil flow rate to ensure smooth and proportional movement of hydraulic cylinders and motors.

Most modern excavators use load-sensing control valves, which adjust pump output based on demand, improving fuel efficiency.

FAQ

• Q: What are your terms of packing?
• A: Generally, we pack our goods in neutral wooden cartons. If you have a legally registered patent,
• we can pack the goods in your branded boxes after getting your authorization letters.
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• A: PayPal, T/T, and other payments as request.
• Q: What are your terms of delivery?
• A: EXW, FOB, CFR, CIF, etc.
• Q: How about your delivery time?
• A: Generally, it will take 3 to 30 days after receiving your advance payment. The specific delivery time depends on the items and the quantity of your order.
• Q: When can I get the price?
• A: We usually quote within 12 hours after we get your inquiry. If urgent to get the price,
• please call us or tell us by email, we will regard your inquiry priority.
• Q: How do you make our business long-term and good relationship?
• A: 1. We keep good quality and competitive price to ensure our customers benefit ;
• 2. We respect every customer as our friend and we sincerely do business and make friends with them,
• no matter where they come from.
• Q: Do you test all your goods before delivery?
• A: Yes, we have a 100% test before delivery.

Our Advantages

GUANGZHOU BELPARTS ENGINEERING MACHINERY LIMITED founded in September 2013, loed in the engineering machinery market in Guangzhou, China. At present , we have one shop, one warehouse and one office as well as a professional team for purchasing, selling, packing, shipping and after-sale service.

Our main products are Excavator Hydraulic spare parts, Hydraulic pump, Swing motor, Travel motor, Final drive, Swing gearbox, Travel gearbox, Control valve,Monitor,Controller, Hydraulic cylinder and other hydraulic items with genuine and aftermarket quality. Until now, our products enjoy high reputation all over the world and have been exported to more than 150 countries and regions, spreading all over the Middle East, Southeast Asia, Africa, North America, South America, Europe and Oceania with its own brand "Belparts" are widely acclaimed by foreign customers.

In February 2023, Belparts Yunnan Tourism Team Building

In April 2024, Belparts participated in the Brazil Construction Machinery Exhibition and visited local clients in Brazil.

In April 2024, Belparts participated in the French Construction Machinery Exhibition and visited clients in France and Spain

In May 2024, Belparts Travel Thailand