Pressure Compensator Cartridge Valve PC200-7 PC200-6
2 week ago
Product details
1. Product Definition
APressure Compensator Cartridge Valveis an integrated hydraulic valve that maintains stable system flow despite load variations through its built-in pressure compensation mechanism.
• Model Compatibility: PC200-7 and PC200-6 are hydraulic system components for Komatsu excavators and other construction machinery, typically used in main pumps or control valve blocks.
• Structural Features: Cartridge-type design allows direct insertion into valve blocks, saving space and reducing leakage points.
------
2. Core Functions
(1) Pressure Compensation
• Dynamic Balancing: Automatically adjusts the valve orifice area when system load pressure changes, ensuring consistent flow through the valve.
Example: During excavator boom lifting, hydraulic cylinder speed remains stable even with varying load weights.
• Differential Pressure Control: Maintains a constant pressure drop (ΔP) across the valve to prevent flow abnormalities due to pressure fluctuations.
(2) Flow Control
• When paired with throttle or proportional valves, it enables precise flow regulation for actuators (e.g., hydraulic motors, cylinders) requiring speed control.
(3) System Protection
• Prevents component damage caused by sudden pressure changes (e.g., shock loads), extending hydraulic system lifespan.
------
3. Application Scenarios (Typical Uses for PC200-7 / PC200-6)
(1) Construction Machinery
• Komatsu Excavators: Main pump outlets of PC200-7 and PC200-6 models often incorporate pressure compensator valves to optimize flow distribution during multi-action operations.
• Cranes/Loaders: Used in hydraulic circuits for luffing and slewing motions to ensure stable flow.
(2) Industrial Hydraulic Systems
• Injection Molding Machines: Regulates pressure-flow matching during mold clamping and injection.
• Die-Casting Machines: Controls switching between rapid mold closing and slow injection speeds.
(3) Agricultural Machinery
• Combine Harvesters: Adjusts hydraulic-driven header lifting speeds.
------
4. Technical Specifications (Example)
【表格】
Parameter PC200-7 PC200-6
Rated Pressure 35 MPa (350 bar) 32 MPa (320 bar)
Flow Range 50–200 L/min 40–180 L/min
Compensation ΔP 1.5–3 MPa (adjustable) 1–2.5 MPa (fixed)
Response Time ≤20 ms ≤25 ms
Installation Type Slip-in Screw-in
------
5. Working Principle
1. Pressure Sensing: The valve spool detects system pressure changes via springs and pressure chambers.
2. Dynamic Adjustment: When load pressure increases, the spool moves to reduce the orifice area, maintaining constant ΔP. When load pressure decreases, the spool enlarges the orifice.
3. Flow Stabilization: By keeping ΔP constant, flow remains independent of load (Q ∝ √ΔP).
------
6. Industry Alternatives
• 2/2 Cartridge Valves: Simpler structure but require external pressure compensators.
• Proportional Valves: Enable electronic flow control but at higher costs.
7. Selection and Maintenance Recommendations
(1) Selection Criteria
• Pressure Matching: Ensure rated pressure exceeds system maximum working pressure.
• Flow Requirements: Select valve size based on actuator flow needs.
• Compensation Precision: Choose adjustable ΔP types for high-precision applications (e.g., CNC machines).
(2) Common Failures
• Flow Instability: Check for spool sticking or contamination in compensation springs.
• Leakage: Replace O-rings or spool seals.
• Excessive Noise: Clean valve filters and inspect oil cleanliness.
(3) Maintenance Schedule
• Regular Inspection: Check valve sealing every 500 operating hours.
• Oil Replacement: Follow equipment manuals for hydraulic oil and filter changes.
------
8. Example Application Diagram
[System Pump] → [Pressure Compensator Valve] → [Actuator (Cylinder/Motor)] ↑ [Load Pressure Feedback]
Similar Video Recommendation
<
>
You May Also Like
Bossgoovideo.com Contact Now
If you are interested in the product, contact Bossgoovideo.com for more information
- *To:
- Ningbo Hengnuo Hydraulic Drive Co.,Ltd
- *Message:
-
Submit
Disclaimer :
The information of Bossgoovideo.com limited shown above is provided by the user or collected on the network. Video 2B does not guarantee the authenticity,accuracy and legitimacy of Bossgoovideo.com limited information. Video 2B does not involve legal relationships and disputes between users arising from
transactions other than secured transactions on this website. Disputes shall be settled by you through negotiation.
If you are the person in charge or relevant employee of this enterprise, if you find that the enterprise information is incorrect or want to manage thiscompany, please contact us jacklee1558@gmail.com, after you claim the enterprise, you can obtain management permission, publish supplyand demand information, bring consulting orders, and remove page advertisements.
Suppliers
Ningbo Hengnuo Hydraulic Drive Co.,Ltd
Audited supplier
3 year
Main Product:
hydraulic motor,
gear box ,
hydraulic pump,
hydraulic valve ,
hydraulic winch,
hydraulic system
You May Also Like