E200B Main Control Valve 964489 991107 Distribution Valve for excavator parts

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Common Failures & Maintenance

(A) Typical Problems

1. Spool Sticking – Caused by contaminated oil or wear.

2. Internal Leakage – Worn seals or valve body damage reduce efficiency.

3. Pressure Fluctuations – Faulty compensators or relief valves.

4. Slow Response – Clogged pilot lines or weak solenoid signals.

(B) Maintenance Best Practices

✔ Regular Oil & Filter Changes – Prevents contamination.
✔ Inspect Spool & Valve Body Wear – Replace if scoring or excessive clearance is detected.
✔ Check Pilot Pressure – Ensure proper signal pressure (typically 20-40 bar).
✔ Test System Pressure & Flow – Use hydraulic test gauges for diagnostics.

Future Trends

• Smart Valves with IoT Integration – Real-time monitoring and predictive maintenance.

• Electro-Hydraulic Proportional Valves – More precise and automated control.

• Energy-Saving Designs – Advanced load-sensing and hybrid hydraulic systems.

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

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