• Reduce the diameter of the valve to increase the service life

    By increasing the diameter of the valve to increase the working opening, the specific methods are as follows: 1. Change the valve of a small first diameter, such as DN32 to DN25; 2. The valve body does not change, replace the valve with small valve s...

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  • [Today is Kaixin’s family dinner]

    Time flies, the years change, the busy 2018 has passed in a blink of an eye, and the expectant 2019 is coming to us. The new year gives birth to new goals and hopes, and Kaixin ushered in the 2018 annual meeting. There is a surprise when entering the...

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  • [He who loves me, please listen to me]

    Thank you letter to customers: Dear Customer    Hello! On the occasion of New Year’s Day, we are grateful to extend our cordial greetings and sincere thanks to you: Thank you for your continued support and help to Kaixin Pipeline Technology ...

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  • How to extend the service life of the regulating valve

    1. Large opening work extended life method Let the regulator work as far as possible at the maximum opening, such as 90%. Thus, cavitation, erosion, and the like occur on the head of the spool. As the spool is broken, the flow rate increases, and the...

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  • Pneumatic control valves without positioners can cause slow movements

    The action of the regulating valve is unstable. The symptoms and causes are as follows: 1. The air source pressure is unstable. A. The compressor capacity is too small; B. The pressure reducing valve is faulty. 2. The signal pressure is unstable. A. ...

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  • [Science Stickers] Five situations and countermeasures of valve leakage are solved on site!

    1. Leakage of valve body and bonnet ► Reason: 1. The casting quality of iron castings is not high, and there are defects such as blisters, loose tissues, slag inclusions on the valve body and bonnet body; 2. Day freeze cracking; 3. Poor welding, ther...

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  • Routine maintenance of pneumatic control valve

    When the regulating valve is made of graphite-asbestos, the lubricating oil should be added to the packing for about three months to ensure the flexibility of the regulating valve. If it is found that the packing pressure cap is pressed very low, the...

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  • 【Popular science stickers】Structural classification and product types of globe valves

    The cut-off valve, also called the cut-off valve, is the most widely used valve, which is mainly composed of a valve body, a valve clack, a valve cover, and a valve stem. The valve body and valve cover are pressure-bearing parts, and the valve clack ...

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  • Key inspection sites of the pneumatic regulating valve

    Pneumatic control valve is one of the widely used instruments in petrochemical enterprises. Its accurate and normal operation is of great significance to ensure the normal operation and safe production of the process equipment. Therefore, it is neces...

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  • Warmly welcome Spanish customers to visit, discuss cooperation and open up a new chapter

    Recently, Spanish customers came to visit our company to discuss cooperation matters. The chairman of Kaixin, together with the company's main leaders and professional sales staff, cordially received the visiting customers. In order to allow customer...

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  • Small-diameter butterfly valves are generally connected by clips

    The body material of the desulfurization butterfly valve is: ductile iron, cast steel, stainless steel, etc. From the cost considerations, there are many spheroidal graphite cast irons. If the weather and temperature are considered in the north, the ...

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  • Ball valves can be divided into three types

    In order to reduce the operating torque of the ball valve and increase the reliability of the seal, oil seal ball valves have appeared in recent years, and the special lubricating oil is injected between the sealing faces to form an oil film, which e...

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