Model meaning

Product Introduction
The GBF vertical fluorine lined chemical pipeline pump produced by our unit. Combined with hydraulic models and the performance parameters of IS centrifugal pumps, it is ingeniously designed on the basis of a general vertical pump. This product has strong corrosion resistance and can replace precious metals such as 316L stainless steel and titanium alloy. It also has the advantages of high efficiency, energy saving, low noise, and reliable performance.
Perfluoroethylene propylene (F46) has excellent corrosion resistance and heat resistance. Except for molten metal lithium, potassium, sodium, chlorine trifluoride, oxygen trifluoride at high temperatures, and high flow rate liquid fluorine, it can almost withstand all chemical media (including concentrated nitric acid and aqua regia). It can operate at 230-260 ℃ for a long time and has heat resistance exceeding that of most plastics.

Product Features
1. The pump is a vertical structure with the same inlet and outlet diameters and located on the same centerline. If a protective cover is added, it can be used outdoors.
2. The impeller is directly mounted on the motor bearing with a reasonable configuration, which can effectively balance the radial and axial loads generated by pump operation, thereby ensuring the balance of pump operation and low vibration noise.
3. The shaft seal adopts a combination of ordinary and particle resistant mechanical seals, which are wear-resistant and corrosion-resistant, and can effectively increase the service life of the mechanical seal.
4. Pumps can be operated in series or parallel according to the requirements of flow rate and head.
5. Easy installation and maintenance, no need to disassemble the piping system, just remove the pump coupling nut to extract all rotor components
6. Vertical and horizontal installation of pumps can be adopted according to the requirements of pipeline layout.

Scope of Application
Suitable for long-term transportation of acids, alkalis, oxidants, and other corrosive liquids of any concentration at temperatures ranging from -85 ℃ to+200 ℃. Guangfa is used in industries such as petroleum, chemical, metallurgical, power, papermaking, flue gas desulfurization, dust removal, food and pharmaceuticals, and synthetic fibers

performance parameters

Preparation, starting and stopping
Preparation before starting:
1. Test whether the motor rotation is correct. When entering the pump from the top of the motor, it should rotate clockwise. The test time should be short to avoid dry wear of the mechanical seal.
2. Open the exhaust valve to fill the entire pump body with liquid, and then close the exhaust valve when it is full.
3. Check if all parts are normal.
4. Manually rotate the pump to allow lubricant to enter the mechanical seal end face.
5. High temperature type should be preheated first, with a heating rate of 50 ℃/hour to ensure uniform heating of all parts.
start:
1. Fully open the inlet valve.
2. Close the valve of the discharge pipeline.
3. Start the motor and observe if the pump is running correctly.
4. Adjust the opening of the outlet valve to the desired operating conditions. If the user is equipped with a flow meter or pressure gauge at the pump outlet, the pump should be operated at the rated point listed in the parameter table by adjusting the opening of the outlet valve. If the user is equipped with a flow meter or pressure gauge at the pump outlet, the motor current of the pump should be measured by adjusting the opening of the outlet valve to operate within the rated current range. Otherwise, it will cause the pump to operate at overload (i.e. current operation) and cause the motor to burn out. The opening size of the outlet valve that is adjusted correctly is related to the working conditions of the pipeline.
5. Check the leakage of the shaft seal. Normally, the mechanical seal leakage should be less than 3 drops per minute.
6. Check that the temperature rise at the motor and bearings is ≤ 70 ℃.
parking:
1. The high-temperature type needs to cool down first, with a cooling rate of less than 10 ℃/minute, and then lower the temperature to below 80 ℃ before parking.
2. Close the valve of the discharge pipeline.
3. Stop the motor.
4. Close the inlet valve.
5. If parking for a long time, the liquid in the pump should be drained completely.

Instructions for Use
1. Before installation, check whether the sturdy components of the unit are loose, and whether there are foreign objects blocking the flow channel of the pump body to avoid damaging the impeller and pump body during the operation of the water pump.
2. The weight of the pipeline should not be added to the water pump during installation to avoid deformation of the pump.
3. The foundation bolts must be tightened during installation to avoid the impact of vibration on pump performance during start-up.
4. For the convenience of maintenance and safety of use, a regulating valve is installed on the inlet and outlet pipelines of the pump, and a pressure gauge is installed near the pump outlet to ensure operation within the rated head and flow range, ensuring the normal operation of the pump and increasing its service life.
5. After installation, the pump shaft should be moved, and there should be no friction sound or jamming phenomenon of the impeller. Otherwise, the pump should be disassembled to check the cause.
6. There are two types of pump installation: rigid connection installation and flexible connection installation.

Faults and troubleshooting methods