Hydraulic system often see a variety of hydraulic valves, then what are the hydraulic valve connection? Zhuo Yi hydraulic manufacturers tell you the connection of hydraulic solenoid valve manifold have a tube connection, plate connection, integrated block type and stacked valve type, etc., the following will give you a separate introduction.
1. Tube connection
Tube connection, also known as threaded connection, it is the tube hydraulic solenoid valve manifold with pipe joints and tubing connection, the flow of large flange connection. The advantages of the foot system between the valve fluid towards a clear; disadvantages are structural dispersion, accounting for a large hydraulic system space, section staggered, not easy to install and dismantle, maintenance, pipe joints easy to oil leakage and into the air, and easy to produce vibration and noise. Currently less used.
2. Plate connection
In Figure 2, the plate connection shows the uniform mounting of the plate hydraulic solenoid valve manifold on the connection plate, using the following forms of connection plate.
(1) single-layer connection plate They installed valve components in front of the vertical connection plate and connected the valve oil line to the plate at the back via an oil pipe. This connection plate is simple, easy to check the oil circuit, but the plate piping, installation and dismantling is not convenient.
(2) double-layer connection plate Between the two plates to connect the valve oil circuit. Two plates and then fixed together with adhesive or screws, simple process, compact structure. But the hydraulic station system pressure is high, easy to leak oil string cavity problems.
(3) The whole connection plate The whole connection plate in a thicker connection plate drilling or casting holes as a connection between the oil circuit, compact structure, less tubing, reliable, but the processing is more difficult, the oil circuit of the pressure loss is greater.
3. Integrated block type
As shown in Figure 3, the integrated block type hydraulic device mounts plate hydraulic components on three sides around the integrated block, and installs pipe fittings on another side for connecting to the hydraulic actuator via oil pipes. Block formed by drilling holes in the connection of the oil circuit, block and mounted in its surrounding components constitute an integrated block group, usually can complete a certain function of the typical basic circuit, such as pressure control circuit block, speed control circuit block. A hydraulic system often consists of several integrated block groups, each connecting the integrated block with the top cover and bottom plate using long bolts.This connection form has a compact structure. Fewer tubes, can be standardised, easy to design and manufacture and other advantages. Therefore, it has been widely used in a variety of hydraulic systems.
4. Stacked valve type
As shown in Figure 4, the stacked valve type is another way of hydraulic device integration, each stacked valve plays the role of both control valves, and the role of the channel body. Therefore, the stacked valve configuration does not require another connection block, just use long bolts directly to the stacked valve mounted on the base plate block, you can form the required hydraulic system.
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