1、 Overview:

The FIJS single-stage single suction cantilever chemical centrifugal pump is a new product optimized and designed based on the IH series pump, with reference to the latest foreign technology and combined with actual user use. Its rated performance and installation dimensions comply with the ISO2858 standard, and its manufacturing technical conditions comply with the ISO5662-85 standard. Previously, shielded pumps were used in key parts of hydrogen peroxide projects. However, after a period of use, the maintenance cost of shielded pumps was high and inconvenient, which caused a lot of trouble for some enterprises. Even parking was caused due to the lack of timely maintenance, resulting in certain economic losses for the enterprises. For this reason, our company's technical personnel have conducted thorough research and made another improvement for the hydrogen peroxide industry based on the CZ pump: the pump adopts three imported bearings and the pump shaft is thickened to maintain the stability of the pump first; Spray painted silicon carbide is used at the friction point between the pump shaft and the oil seal to increase strength, ensure no wear with the shaft, maintain no oil leakage, and ensure the service life of the shaft; The shaft sleeve is also made of spray painted silicon carbide to ensure that the shaft sleeve is never worn and to guarantee the service life of the machine seal; The pump body and overcurrent components have undergone strict pressure testing, acid washing, and passivation treatment; Create a protective film on the casting to ensure no leakage. At the same time, the pump adopts an advanced sealing structure, which is reliable in quality, easy to maintain, and low in cost. It is also an ideal pump to replace shielded pumps in the hydrogen peroxide industry, and has received unanimous praise from peers in practical use.
2、 Compared with IH pumps, the structure of FIJS chemical pumps has the following characteristics:;
1. Shortened the cantilever of the impeller and increased the diameter of the shaft;
2. Asymmetric cross-section volute and pump casing without mouth rings;
3. Using three imported bearings;
4. Equipped with a new type of seal similar to advanced double end mechanical seals or packing seals from abroad.
3、 Due to the above structure, the pump has the following advantages:
1. It can transport media with high viscosity or solids, and the efficiency of the pump is higher than that of the IH pump;
2. Asymmetric cross-section snail shell reduces fluid impact loss and shortens pump casing size;
3. Increasing the strength of the shaft reduces the deflection of the rotor, resulting in stable operation and long sealing life;
4. The impeller nut is integrated with the impeller, improving the inlet conditions of the pump and enhancing its anti cavitation performance;
5. Advanced shaft seal form ensures better sealing effect and reduces pump leakage;
6. The clearance of the pump can be adjusted without disassembling the pump casing and impeller, reducing maintenance time and saving maintenance costs.
4、 Purpose:
Hydrogen peroxide industry
Transport of circulating working fluid, circulating oxidizing fluid, alkaline solution, and pure water
Transport of circulating hydrogenation solution, hydrogenation solution, dilute aromatic diameter, etc
Petroleum industry
Production of refined acetaldehyde and alkylbenzene from petroleum
Synthetic fiber and plastic industry
Production, textile, printing and dyeing industries of polyester and polyvinyl chloride
Paper industry
Transportation of pulp cooking solution and bleaching solution
Fertilizer industry
Production of urea and ammonia
Pharmaceutical industry
Production of pharmaceuticals and pesticides

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