News

Summary of various knowledge about water pumps

1. What is the main working principle of a centrifugal pump? The motor drives the impeller to rotate at high speed, causing the liquid to generate centrifugal force. Due to the centrifugal force, the liquid is thrown into the side channel and discharged from the pump, or enters the next impe... Read More

Explore together and look forward to the future——Chemical Pump Technology Exchange Meeting of Hebei Branch of Liancheng Group

Exchange meeting On April 26, 2024, Shanghai Liancheng (Group) Hebei Branch and China Electronics System Engineering Fourth Construction Co., Ltd. held an in-depth chemical pump technology exchange meeting at China Electric Power Group. The background of this exchange meeting is that although the... Read More

Unremitting efforts and vigorous progress – Liancheng Group was invited to participate in the third member representative conference of Jiangqiao Town Chamber of Commerce

On the afternoon of April 28, the third member representative meeting of Jiangqiao Town Chamber of Commerce was successfully held. Wang Yuwei, deputy director of the United Front Work Department of the Jiading District Committee and secretary of the Party Leadership Group of the District Fed... Read More

Upgraded cooperation and upgraded products—Shanghai Liancheng (Group) Co., Ltd. obtained the qualified supplier certificate from CNNC

 Recently, Shanghai Liancheng (Group) Co., Ltd. successfully passed the supplier qualification inspection review of CNNC Strategic Planning Research Institute Co., Ltd. and officially obtained the qualified supplier qualification of CNNC. This marks that the group company has successfully entered... Read More

Energy saving and emission reduction, quality and efficiency improvement—Hebei Jingye Steel Energy Saving Renovation Project

As an active advocate and supporter of the “double carbon” goal, Liancheng Group has been committed to continuously providing customers with comprehensive services, efficient and innovative energy-saving product solutions, reducing energy consumption and operating costs, and achieving... Read More

Matters needing attention of single-stage pump

1、Pre-start preparation 1). Corresponding to the grease lubrication pump, there is no need to add grease before starting; 2). Before starting, fully open the inlet valve of the pump, open the exhaust valve, and the pump and water inlet pipeline should be filled with liquid, then close the exhaus... Read More

Matters needing attention of middle-opening pump

1. Conditions necessary for start-up Check the following items before starting the machine:   1）Leak check 2）Make sure that there is no leakage in the pump and its pipeline before starting. If there is leakage, especially in the suction pipe, it will reduce the operating efficiency of the pump ... Read More

Matters needing attention of boiler feed water pump

1. Pump can only run within the specified parameters; 2. Pump conveying medium must not contain air or gas, otherwise it will cause cavitation grinding and even damage parts; 3. Pump can not convey granular medium, otherwise it will reduce the efficiency of pump and the life of parts; 4.The pump ... Read More

Matters needing attention of Submersible sewage pump

1. Before use： 1).Check whether there is oil in the oil chamber. 2). Check whether the plug and sealing gasket on the oil chamber are complete. Check whether the plug has tightened the sealing gasket. 3).Check whether the impeller rotates flexibly. 4). Check whether the power supply device is sa... Read More
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