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

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

List of spare parts

Construction and Components

An excavator control valve consists of multiple integrated components:

(A) Valve Body

• Made of high-strength cast iron or steel to withstand high pressure (typically 300-400 bar).

• Contains precision-machined oil passages for smooth hydraulic flow.

(B) Spool Valves (Main Control Elements)

• Sliding spools inside the valve body shift to open or block oil flow.

• Spool movement is controlled by pilot pressure (hydraulic) or solenoid valves (electro-hydraulic).

(C) Pilot Valve (for Hydraulic Control)

• Generates low-pressure hydraulic signals to move the main spool.

• Reduces operator effort by using a smaller control pressure to regulate larger flows.

(D) Pressure Compensation Valve

• Ensures consistent flow regardless of load changes.

• Prevents one function from starving another when multiple movements occur simultaneously.

(E) Relief Valve (Safety Feature)

• Limits maximum system pressure to protect hydraulic components.

• Activates when pressure exceeds a set threshold (e.g., 350 bar).

(F) Check Valves (Anti-Cavitation & Load Holding)

• Prevent backflow and maintain cylinder position when the valve is neutral.

• Some models include over-center valves for better load control.

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

20T-62-71160 Hydraulic Main Control Valve

PC35MR-2 Hydraulic Main Control Valve

Excavator Hydraulic Main Control Valve

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