Overview of CYZ-A Explosion proof Self priming Centrifugal Pump

The CYZ-A self-priming centrifugal pump produced by our unit is a new type of pump product developed based on relevant technical data at home and abroad, which has been digested, absorbed, and improved. It is unique in the domestic market and is suitable for ideal products in the petroleum industry, land oil depots, and oil tank trucks. It is also suitable for use as a ship cargo pump, bilge pump, fire pump, ballast pump, and machine cooling water circulation. It can transport petroleum products such as gasoline, kerosene, diesel, aviation kerosene, as well as seawater and clean water, with a medium temperature of -20 ℃ to 140 ℃. If transporting chemical liquids, corrosion-resistant mechanical seals can be used instead.

Product features of CYZ-A explosion-proof self-priming centrifugal pump

This pump belongs to the self-priming centrifugal pump, which has the advantages of simple structure, easy operation, stable operation, easy maintenance, high efficiency, long service life, and strong self-priming ability. There is no need for a bottom valve in the pipeline. Before operation, it is only necessary to ensure that a certain amount of oil is stored in the pump body. When used on oil tankers or water transport vessels, it can also serve as a cleaning pump with good cleaning effect.

This self-priming centrifugal pump is refined from high-quality materials and sealed with a hard alloy mechanical seal, which is durable. The discharge pipeline does not require the installation of a safety valve, and the suction pipeline does not require the installation of a bottom valve, thus simplifying the pipeline system and improving working conditions.

Structural diagram of CYZ-A explosion-proof self-priming centrifugal pump

（1） Preparation and inspection work before starting:

1. This series of oil pumps uses high-quality calcium based butter and No. 10 engine oil for lubrication according to the working and operating conditions of the pump. If a butter lubricated pump is used, butter should be regularly added to the bearing box. If an oil lubricated pump is used, the oil level should be sufficient.

2. Check if the liquid storage inside the pump casing is higher than the upper edge of the impeller. If it is insufficient, the liquid can be directly injected into the pump body from the filling port on the pump casing. The pump should not be started and operated when the liquid storage is insufficient, as it will not work properly and may damage the mechanical seal.

3. Check whether the rotating parts of the pump are stuck or bumped.

4. Check if there is any looseness in the nuts of the pump body feet and various connections.

5. Check the coaxiality or parallelism between the pump shaft and the motor shaft.

6. Check if there is any air leakage in the inlet pipeline, and if there is any, try to eliminate it.

7. Open the valve of the suction pipeline and slightly open (not fully open) the outlet control valve.

（2） Stop pump

Firstly, the gate valve on the discharge pipeline must be closed.

2. Stop the pump from rotating.

During the cold season, the liquid stored in the pump body and the water in the cooling chamber of the bearing body should be emptied to prevent freezing and cracking of the components.

1、 ① Product name and model of self-priming centrifugal pump ② Diameter of self-priming centrifugal pump ③ Head of self-priming centrifugal pump (m) ④ Motor power of self-priming centrifugal pump (KW) ⑥ Speed of self-priming centrifugal pump (r/min) ⑦ Voltage of self-priming centrifugal pump [V] ⑧ Suction stroke of self-priming centrifugal pump (m) ⑨ Whether the self-priming centrifugal pump comes with accessories for us to correctly select for you.

2、 If the design unit has already selected our company's self-priming centrifugal pump product model, please order directly from our sales department according to the self-priming centrifugal pump model.

3、 When the usage situation is very important or the environment is complex, please provide design drawings and detailed parameters as much as possible, and our technical experts will review and control them for you.