Dear user:

Thank you for using the high-performance hydraulic cartridge valve produced by Zhejiang Huayi Machinery Holding co., LTD. When you open the product packaging, please check if the product specification, type and quantity is consistent with your requirements. If there is anything wrong, please do not hesitate to contact us. You can also do this by scanning the QR code or visiting the website to contact our customer service. We will process your request in a timely manner. In each full package of our purchased product, there are 2 free sets of wearing parts and o-rings. Please save them, so that you can change them at any time during the process of installation. In case you are unsatisfied with our packaging, logistics, product appearance, or product performance, you can contact us in a timely manner by telephone, WeChat, or by giving feedback on our website. We appreciate feedback for DunAn high-performance cartridge valve! We are committed to R&D and manufacturing of high performance hydraulic thread cartridge valves and services. We are looking forward to cooperating with you, thank you!

Zhejiang Huayi Machinery Holding co., LTD Customer service

《The product installation operation instruction handbook》

A, This manual applies to all Huayi Machinery Holding series of threaded cartridge valve

B, The cartridge valve system hydraulic oil and working temperature requirements:

1, the hydraulic oil viscosity recommendation: 2, 8 ~ 380 CST or 35 ~ 2000 SUS

2, hydraulic oil cleanliness recommendation: according to the regulations of the NAS 1638;

level 7. As users of Huayi Machinery products, if you use our recommended to extend the service life of the filter, it can reach 1 million times product design life, and we have the results of the validation in the laboratory. For any hydraulic components, although other factors may also affect its service life, but to extend the service life of the most effective way is to improve the filtering accuracy. If did not reach the grade of filtering the minimum requirements, will lead to premature failure or system failure.

3,Oil temperature is recommended

C, When choosing hydraulic thread cartridge valve and storage precautions attention:

1, When choosing thread cartridge valve, be sure to see the flow and pressure, but also pay attention to the flow rate - pressure curve, if the type is too small will often cause great loss of the system pressure, make the system heat, if the selection is too large, will cause economic waste.

2,There are two kinds of thread cartridge valve sealing materials, fluorine rubber seal is suitable for the phosphate ester medium, Nitrile rubber seal is suitable for mineral oil medium;

3, For thread cartridge valve pressure and flow value, can specify Settings when choose, if not specified, it will be the default value.

4, When designing the system must do a good job in the design of the filter, and to fully clean up before operation;

5, The design should be required on the valve block, valve block threaded cartridge hole next to the engraved on the note on the valve type, in order to prevent the wrong;

6, When hydraulic valve need to be stored for a period of time, should be stored in a dry, clean, no corrosive gas in the indoor environment, pay attention to protect hydraulic valve from the internal and external corrosion damage.

D,The installation of thread cartridge valve

1, Before installing threaded cartridge valve should undertake the following work:

(1) To check the size of the socket, such as inner diameter, depth, dip Angle of each step.

(2) Check the roughness of the socket, and must be removed chamfer and Cross hole in sharp edges or burrs, so as not to damage the instrumentation components of the sealing ring.

(3) With dedicated fixture check jack concentricity.

(4) Check each component model and the sealing ring, necessary to unpick and wash, replacement and performance testing.

(5) clean the valve block, and each element.

2, Installing a threaded cartridge valve, should coated with grease or oil in the socket and thread cartridge valve valve set of outer ring (especially the seals), and then put the thread cartridge valve into the socket, with a torque wrench moment according to the regulation within the screwing in jack. (see the cartridge valve installation torque table) (see the back).

3, When installing threaded cartridge valve should pay attention to the following:

(1) During Installation of thread cartridge valve should pay attention to the sealing ring and ring don't cut in the process of assembly.

(2) The thread cartridge valve on the set of thread cartridge valve is relatively dense, should follow a direction in order to install.

(3) When installing a solenoid valve, such as the installation space is not enough, should be electromagnet, stay body installed and the electromagnet.

For every purchase of our products, in strict accordance with <the product installation instructions> required to install use, if under normal operation, due to defects in material, design, manufacturing process and caused by quality problems, within one year replacement, three years warranty, o-rings, seals because life limit and the use of system environment influence is beyond the scope of warranty. Free maintenance removed parts owned by the company.