Features and working principle of Rexroth solenoid valves

Create Date: 2024-8-30 12:03:23|Source: Rexroth/Rexroth

First, the characteristics of the solenoid valve:

1) Rexroth solenoid valve, solenoid valve and all stainless steel; For highly corrosive media, the diaphragm type must be selected. Neutral medium, it is also advisable to choose a solenoid valve with copper alloy as the housing material, otherwise, rust chips often fall off in the valve housing, especially when the action is infrequent. Ammonia valves cannot be made of copper;

2) Explosive atmosphere: the corresponding explosion-proof grade products must be selected, and waterproof and dustproof varieties should be selected for open-air installation or dusty occasions;

3) The nominal pressure of the solenoid valve should exceed the working pressure in the pipe.

Second, the principle of solenoid valve:

Germany Rexroth solenoid valve principle solenoid valve is usually used with single-acting pneumatic actuator, two positions controllable: on-off, three-way is three channels of ventilation, generally 1 channel is connected with the air source, the other two channels 1 is connected with the air inlet of the actuator, 1 is connected with the exhaust port of the actuator. The two-position five-way solenoid valve is usually used with a double-acting pneumatic actuator, and the two-position is controllable: on-off, and the five-way is a five-channel ventilation, one of which is connected with the air source, two are connected with the air inlet and outlet of the external air chamber of the double-acting cylinder, and two are connected with the air inlet and outlet of the internal air chamber.

3. Technical parameters:

1) Select the valve port and model according to the requirements of the medium flow direction and the pipeline connection mode;

2) According to the flow rate and valve Kv value to select the nominal diameter, can also choose the same pipe inner diameter;

3) Working pressure difference: Indirect pilot type can be used for low working pressure above 0.04Mpa, and direct or step-by-step direct type must be used if the low working pressure difference is close to or less than zero.

Features and working principle of Rexroth solenoid valves

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