Hydraulic Directional Valve Diagram

Elephant Fluid Power has more than ten years of production history and is now the largest hydraulic products manufacturer in northern China, with unique experience in the production and manufacture of hydraulic directional valves.

Classification of hydraulic directional valves:

According to the structure, it can be divided into: rotary valve type, spool valve type

According to the number of valve core working positions, it is divided into: two, three and multi-position

According to the number of import and export links, it is divided into: two links, three links, four links and five links

According to the operation and control mode, it is divided into: manual, motorized, electric, hydraulic and electro-hydraulic

According to the installation method, it is divided into: tube type, plate type and flange type

Graphical symbol meaning of hydraulic directional valve:

1. Bit one is represented by squares, and several digits are several squares

2. through one ↑ not through - 丄, 丅

   The beginning and end of the arrow and the interception symbol have several intersections with a square

3. P, A, B, T have fixed orientations

   P one oil inlet, T (O) back oil port

   A and B working port connected to the actuator

4. The control mode and return spring are a W, drawn on both sides of the square. Two-position valve, by the spring of one compartment.

5. Normal position (in the schematic diagram, the oil circuit should be connected in the normal position)

   Three valves, one block in the middle.

Representation of passes and bits:

Several digits indicate that the directional valve has several working states. It is usually expressed by the number of squares representing the valve body. For example, a two-position valve or a three-position valve will have two or three squares on the Tufu.

Several passes can be determined by the total number of points and arrow lines and T lines intersecting on the square in the normal position of the directional valve.

Graphical symbol meaning:

1. Use boxes to indicate the working position of the reversing valve, and there are several boxes to indicate that there are several positions.

2. The arrow in the box indicates that the oil circuit is on, but the direction of the arrow does not necessarily indicate the actual direction of the oil flow.

3. Use T to indicate that the oil circuit is not passable.

4. A few dots outside the box indicate several passes.

5. The oil inlet of the reversing valve is usually represented by P, the oil return port is represented by T, and the oil discharge port is represented by L.

6. When drawing the reversing valve system diagram, the oil circuit is usually drawn in the normal position box.

7. When the directional valve has two or more positions, there must be a normal position, that is, the position when the valve core is not subjected to the manipulation force. The normal position of the two-position valve is the box near the spring, and the normal position of the three-position valve is the middle box.

Elephant Fluid Power products are many types, there are many types, there are models on the market can be produced, commonly used directional valves can be produced, and the products are cost-effective, good quality, the price is also very favorable, the quantity is superior.

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