Каков расход коллектора d03?

What is a hydraulic manifold?What is the flow rate of a d03 manifold?

A d03 manifold (hydraulic manifold) is a key component in a hydraulic system designed to distribute hydraulic fluid from one input port to multiple output ports. It serves as a control center, allowing multiple hydraulic valves to be installed and managed through a unified interface. By using a manifold, the complexity of piping connections is significantly reduced, thus improving system reliability and ease of maintenance.

Important Parameters for Hydraulic Manifolds

Firstly, the interface specifications are essential. Hydraulic manifolds come in various interface sizes, with the D03 manifold (or NG6 manifold) being the most commonly used. This specification provides standardized mounting holes and flow path designs, making it easy to interchange valves from different manufacturers.

Secondly, the maximum working pressure is another critical parameter. The maximum working pressure of a manifold is usually matched to the pressure of the connected hydraulic system, commonly ranging from 210 to 350 bar.

Следующий, flow capacity is an important parameter of a manifold, typically expressed in liters per minute (L/min). It indicates the maximum flow rate that the manifold can handle, directly affecting the responsiveness and efficiency of the system.

Moreover, the material of the manifold is crucial. Manifolds are generally made of aluminum alloy or steel. The choice of material depends on the application scenario and working pressure requirements. Aluminum alloys are lighter and suitable for low to medium pressure situations, while steel manifolds are ideal for high-pressure systems.

Flow Rates for D03 Manifolds

Typically, D03 manifolds support flow rates in the range of 20 to 40 liters per minute. This range is determined by several factors:

First, the valve size and design directly impact the flow rate. Larger openings and flow path designs can increase flow.

Second, system pressure also affects flow rate. Higher system pressure can often push more fluid through the valve, increasing flow.

Furthermore, the viscosity of the hydraulic fluid plays a role. A hydraulic fluid with a low viscosity will provide a higher flow rate at the same pressure, while higher viscosity fluids may restrict flow.

Finally, temperature affects the viscosity of the hydraulic fluid, which indirectly affects the flow rate. At higher temperatures, the viscosity of the oil decreases, and the flow rate may increase.


In summary, D03 manifolds and valves play a vital role in industrial hydraulic systems. Understanding their flow parameters and influencing factors can help optimize the design and performance of hydraulic systems. When selecting or designing a hydraulic system, it is important to consider various factors such as pressure, flow rate, and materials based on the specific application requirements to ensure efficient and reliable operation.


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