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1. Overview The horizontal self-priming process pump is a special centrifugal pump. It can normally transport liquids or gas-liquid mixtures mixed with a certain amount of gas without "cavitation". There is no need to install a bottom valve above the liquid level. In addition to the initial start-up, it is necessary to fill in the pump chamber. After the start, no need to fill the liquid. This kind of pump is simple in structure, easy to install and overhaul, small in consumption of wearing parts, and can transport a variety of corrosive liquids and gas-liquid mixtures. It is a new generation of submerged pumps. The design of ZZ0 series self-priming chemical process pump is in line with the GB/T5656-94 centrifugal pump technical condition (Class II), advanced advanced gas-liquid separation technology and excellent hydraulic model with high efficiency and low cavitation. 2. Model Description Example: ZZO 50 -- 160 ZZO ---- Series code 50 ------ Nominal diameter at exit 160 ----- Nominal impeller diameter 3. Performance range Flow rate up to 200m3/h Head up 120m working pressure up to 2.5Mpa working temperature -20-----160°C Maximum vacuum degree up to 500mmHg Self-priming height decreases with increasing medium vapor pressure, inversely proportional to medium gravity. Range of application ZZ0 series pump can be widely used to transport clean, particle-containing, different temperature, and different corrosive liquids. It is especially suitable for conveying media containing gas components, as well as occasions that require intermittent operation and frequent start-up. Some occasions It can be used instead of a submerged pump. 5. Mainly used for ■Oil refineries, petrochemical industry, chemical processes ■Urban water supply, seawater desalination, environmental protection, sewage treatment ■Power plants, heating 6. Transmission medium ■Clean water, seawater, sewage, hot water ■Organic for various temperatures and concentrations Acid, inorganic acid ■Various temperature and concentration of alkaline solution ■Various salt solutions ■Various liquid petrochemical products, organic compounds 7. Structural characteristics ■ZZ0 series pumps are single-stage, single-suction, horizontal centrifugal pumps, pump body For foot support, radial suction, radial discharge. ■Adopt semi-open impeller, equipped with front and rear wear plates. The wear plate and impeller clearance can be easily adjusted by adjusting the studs. ■The bearing parts have good versatility and can greatly reduce the number of spare parts. ■Because of the self-priming ability of the pump itself, it is not necessary to provide auxiliary equipment such as bottom valves and vacuum pumps. As long as the liquid is injected before the initial start-up, repeated start-ups do not require re-injection. ■Seal seals, single-end or double-end mechanical seals can be used for shaft seals. ■Couplings are equipped with an extended section structure to facilitate overhauling. Metal diaphragm couplings can be used as required. ■The inlet and outlet flanges of the pump implement the standard of GB9113 and the pressure level is 2.5Mpa. According to different user interfaces, it can also be implemented according to other standards. ■Seen from the drive side, the pump rotates clockwise. 8. The material of the pump's flow-through parts is generally cast iron HT250, carbon steel ZG25, stainless steel 304 (0Cr18Ni9), 316L, Cr30, CD4Mcu, Hastelloy. Other types of materials may be used depending on the characteristics of the medium and the operating conditions. To meet the requirements of use. Company Name Chengdu Kaiyi Engineering Technology Development Co., Ltd.
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