9/25/2023

Which media needs to be transported with fluorine lined pumps


Fluorine lined pump is a special type of pump, its main function is to transport some special media. These media usually have certain corrosive or high-temperature and high-pressure characteristics, so it is necessary to use fluorine lined pumps for transportation. Fluorine lined pumps have been widely used in industries such as chemical, pharmaceutical, and electric power. Let's take a look at which media need to be transported with fluorine lined pumps.
Which media needs to be transported with fluorine lined pumps
Firstly, fluorine lined pumps are suitable for transporting corrosive media. In the chemical industry, many chemicals have certain corrosiveness, such as acids, alkalis, salts, etc. If these chemicals are transported using ordinary pumps, they can easily cause corrosion and damage to the pumps, and even cause serious damage to production equipment.
The fluorine lined pump has good corrosion resistance, which can effectively avoid the occurrence of these problems and ensure the safety and stability of production. Secondly, fluorine lined pumps are suitable for conveying high-temperature media. In some high-temperature production environments, ordinary pumps are difficult to withstand the impact of high temperatures, and are prone to problems such as pump body deformation and seal failure. The fluorine lined pump is made of special materials, which can withstand the influence of high temperature and ensure the stability and safety of the conveying medium. In addition, fluorine lined pumps are also suitable for conveying high viscosity media.
In some pharmaceutical, food and other industries, some media have high viscosity and it is difficult to transport them out using ordinary pumps. The fluorine lined pump adopts a special design and structure, which can effectively solve this problem and ensure smooth and stable transportation.
In short, fluorine lined pumps are a special type of pump suitable for conveying some special media. It has good corrosion resistance, high temperature resistance, and adaptability to high viscosity media, which can ensure the safety and stability of production. In industries such as chemical, pharmaceutical, and power, fluorine lined pumps have been widely used and have become indispensable and important equipment in the production process.

low-temperature environments in using vacuum pumps for precautions

9/14/2023

Precautions for centrifugal pump testing


After the installation of various centrifugal pump products newly purchased and installed, it is necessary to conduct centrifugal pump testing work in advance. When conducting centrifugal pump testing work, the following methods and precautions for centrifugal pump testing should be followed
1. Before starting the centrifugal pump, it is prohibited to conduct idle and no-load testing. Liquid testing should be carried out according to the operating procedures specified in the centrifugal pump operating instructions. For the forced lubrication system, the temperature rise of the centrifugal pump bearing oil should not exceed 28 degrees, and the temperature of the bearing metal should be less than 93 ℃.
2. For centrifugal pumps with oil ring lubrication or splash lubrication systems, the temperature of the lubricating oil should not exceed 39 degrees, and the temperature of the bearing components should be less than 82 degrees.
3. When testing the centrifugal pump, the vibration value of the centrifugal pump bearing should also be checked. The vibration standard of the centrifugal pump bearing can refer to the relevant vibration standards of petrochemical rotating machinery.
4. During the testing process of the centrifugal pump, the operation of the centrifugal pump should be very balanced and noise free. The coolant and lubricating oil system should be normal, and there should be no leakage in the centrifugal pump and its auxiliary pipelines.
5. During the process of testing the centrifugal pump, attention should be paid to whether the current of the centrifugal pump motor is operating within the specified range. If the current exceeds the specified range, it indicates that the actual operating head is lower than the pump head. In this case, it is recommended to turn down the outlet valve to control the flow of the centrifugal pump and use it within the rated current range.
6. The leakage of various seals and media in centrifugal pumps shall not exceed the following standard requirements:
(1) Clean water centrifugal pump with mechanical seal: 10 drops/min for light oil and 5 drops/min for heavy oil
(2) Multi stage centrifugal pump products sealed with packing: 20 drops/min for light oil and 10 drops/min for heavy oil
(3) For magnetic drive pumps conveying toxic, harmful, flammable, and explosive media, no obvious visible leakage is allowed.

Liquid Ring Vacuum Pump in Chemical Production of Application