Hyundai R55-7 31M8-10110 31M8-19110 excavator control valve 31M8-10120 31M8-19121

The excavator control valve (also called the main control valve) is the core component of the hydraulic system. It precisely directs hydraulic oil to actuators (e.g., cylinders, motors) based on operational demands, enabling coordinated multi-function control. Its performance directly impacts efficiency, stability, and energy consumption.

List of spare parts

Working Principle

• Flow Distribution: The valve body contains multiple parallel spools and channels. Operator inputs (via joystick signals or pilot pressure) shift spools to open/close oil paths.

• Pressure Compensation: Load-sensing design dynamically adjusts flow allocation by monitoring real-time pressure requirements, preventing lag during compound operations.

• Flow Control: Proportional throttling technology regulates spool opening proportionally to operator input, enabling precise speed adjustment.

• Safety: Relief valves and overload protection modules automatically release excess pressure to safeguard the system.

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Key Features

• Energy Efficiency: Load-sensing + electro-hydraulic proportional tech reduces power waste.

• Fast Response: Optimized spool design minimizes pressure drop .

• Durability: Hardened spools and low-friction seals ensure 10,000+ hours service life.

Company Information

Why Choose Us

Certifiion

Product Processing

Hot Production

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.
• Q: What about the payment options?
• 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

• Strong part number database.

• If you can provide the right model and part number, we can supply the right product.

• Professional and experienced salesperson.

• Our founder has been in this field for more than 9 years, with rich experiences.

• Strict and complete company rules.

• We will try our best to meet the customer’s delivery time. Before delivery, we must verify the part number or pictures of products one by one, to make sure that customers can receive high-quality and right-quantity goods.

• Good management system.

• No matter how big or small the order, as long as customers place the order, we will provide exporting services free of charge.

• Good service attitude.

• As long as customers’ requirements are reasonable, we will endeavor to make them satisfied.

Product Packing

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