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Многоходовой клапан LF10D от китайских поставщиков и фабрик для мини-экскаваторов и строительной техники
Technical Specifications
| Overview | |
| Construction | Split component |
| Mounting method | See drawing |
| Connection | Thread |
| Diameter mm | 10 |
| Hydraulics | |
| Rated pressure bar | 200 |
| Maximum pressure bar for ports A and B | 275 |
| Maximum pressure at ports a and b bar | 35 |
| Maximum allowable back pressure bar | 15 |
| Primary relief valve pressure bar | 100~200 |
| Secondary relief valve pressure bar | 100~315 |
| Leakage (at 100 bar, 36 m²/s, 50°C) ml/min | 5-10 |
| Flow rate l/min | 60 (max. per unit) |
| Hydraulic oil temperature range ℃ | -20~+100 |
| Viscosity range m²/s | 10~460 |
| Allowable oil contamination level | -/19/16 (ISO4406:1999) |
| Equipment | |
| Total weight kg | Approx. 29 |
Operating Principle
Frequently Asked Questions
Q
What is the maximum operating pressure for ports A and B on this load-sensing valve?
The maximum pressure for ports A and B is 275 bar, while the rated nominal pressure is 200 bar. Ports a and b are limited to a maximum of 35 bar.
Q
What hydraulic oil contamination level is acceptable for this valve?
The allowable oil contamination level is -/19/16 according to ISO 4406:1999. Maintaining proper oil cleanliness is essential for reliable valve performance and longevity.
Q
What is the adjustable pressure range for the primary and secondary relief valves?
The primary relief valve can be set between 100 and 200 bar, while the secondary relief valve covers a wider range of 100 to 315 bar, providing flexible system protection options.
Q
What is the maximum flow rate this valve can handle?
The valve supports a maximum flow rate of 60 litres per minute per unit. For higher flow requirements, multiple units may be combined in a modular configuration.
Q
What is the operating temperature range for the hydraulic oil?
The valve is designed to operate with hydraulic oil temperatures ranging from -20°C to +100°C, and supports oil viscosities between 10 and 460 m²/s, making it suitable for a wide range of working environments.
Q
How is this valve mounted, and what type of connection does it use?
The valve uses a threaded connection and is a split-component design. The specific mounting method is detailed in the engineering drawing provided with the product documentation.