Stainless steel multistage pumps can be divided into vertical stainless steel multistage pumps and horizontal stainless steel multistage pumps. The material can be divided into stainless steel multistage pump, LG stainless steel multistage pump, MD stainless steel multistage pump, fluoroplastics stainless steel multistage pump and so on. The method of transporting materials by stainless steel multi-stage pump is to obtain centrifugal force by rotating the impeller. In addition, the gas density in the pump body will be continuously compressed and gradually pumped out, thus creating a vacuum transport environment. Stainless steel multistage pumps are widely used in petrochemical, mechanical, mineral, even pharmaceutical and food industries. Their applications include vacuum filtration, vacuum evaporation, vacuum degassing, vacuum water diversion, vacuum concentration, vacuum moisture regain and vacuum feeding, etc. 

Stainless steel multistage pump is a centrifugal pump with multiple impellers installed in series and flow in series, so it is called stainless steel multistage pump. Essentially, the lift of stainless steel multistage pump is determined by the impeller structure type and circumferential velocity. If the speed can't be increased because of other boundary conditions, and if the impeller diameter increases, the specific speed is too small and the efficiency is not high, the lift can be improved by series connection of multiple stages. The flow rate of stainless steel multistage pumps will not change by changing the number of stage chambers, because the power demand and head are proportional to the number of stage chambers.

Stainless steel multistage pumps are suitable for transporting clean water or physicochemical liquids in high-pressure operation systems, such as high-rise building water supply, boiler water supply, fire fighting systems, etc. or for pipeline pressurization. Stainless steel multi-stage pumps are made of integral stainless steel, which are suitable for chemical, food, brewing, pharmaceutical, textile and other industries. Stainless steel 306 or 316L can be customized according to user's requirements.

Pre-start inspection of stainless steel multistage pumps:

Whether the name, type, main performance and quantity of lubricating oil meet the requirements of technical documents for stainless steel multistage pumps;

Whether the lubrication system, sealing system and cooling system of bearings are in good condition, and whether the oil and water routes of bearings are smooth;

The rotor of disc-driven pump rotates from 1 to 2, checking whether the rotor of stainless steel multi-stage pump is frictional or stuck.

In the vicinity of coupling or belt protection device, whether there are any debris that hinder the rotation of stainless steel multi-stage pump;

Whether the base bolt of pump, bearing seat and motor is loose or not;

The valves or accessories of the working system of stainless steel multistage pumps should be in the position of the lowest load when the pumps are running, and the outlet regulating valves should be closed.

Stainless steel multi-stage pump industry production technology continues to improve, the demand market is also expanding, so in recent years, China's stainless steel multi-stage pump industry has developed rapidly, in the domestic and international market development situation is very good, then why will be good, in fact, because it has many advantages, will have a domestic and international market, the following describes some stainless steel multi-stage. Advantages of pumps.

1. Stainless steel material, with super service life, long use time, do not need to be replaced frequently;

2. The shaft seal adopts wear-resistant mechanical seal without leakage.

3. Mechanical seal is adopted, which is reliable and easy to maintain.

4. The whole machine is reliable in quality and can be used safely.

5. It is an ideal green, environmentally friendly and energy-saving stainless steel multistage pump.

Stainless steel multistage pumps also need to be maintained. Weekly inspection of stainless steel pumps and pipelines and joint loosening phenomenon; hand rotation of stainless steel pumps to see if the stainless steel pump is flexible; bearing lubricating oil is added to the bearing body to observe the oil level should be in the center line of the oil mark, lubricating oil should be replaced or supplemented in time.

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