All the screw holes on the valve block shall have machining accuracy requirements, generally 7h. The machining accuracy of the mounting hole of the threaded Manifold shall meet the requirements of the product sample.

When machining the valve block, the form and position tolerance must be strictly controlled to meet the use requirements.

The design layout of hydraulic valve block is not the more complex, on the contrary, on the premise of meeting all technical conditions, the simpler the better. In this way, the optimization method needs to be adopted in the design layout.

The flow rate of hydraulic oil in the passage should not be higher than 12m / s, and the return passage should be 20-40% larger than the inlet passage; The valve block oil inlet, working port and control port should be processed with pressure tap; Each valve port shall be engraved with a label; For the valve block with large mass, there must be a lifting screw port.

According to the form of oil tank, the hydraulic valve block can be divided into: 1. Ordinary steel plate: 5mm-6mm steel plate is used to connect the box, and 10-12mm steel plate is used to connect the panel. If there are too many holes, it can be appropriately thickened or reinforced. 2. Stainless steel plate: 304 stainless steel plate with thickness of 2-3mm is used for the box, 304 stainless steel plate with thickness of 3-5mm is used for the panel, and stiffeners are added for the bearing parts.