The SHZ series circulating water multi-purpose vacuum pump series use circulating water as the working fluid, and the vacuum pump that uses the fluid jet to generate negative pressure for spraying has undisputedly become the domestically favored multi-purpose vacuum pump for circulating water. Provide vacuum conditions for evaporation, distillation, crystallization, drying, sublimation, filtration and decompression, degassing, etc. It is especially suitable for universities, research institutes, chemical engineering, medicine, biochemistry, food, pesticides, agricultural engineering, biological engineering, etc. Industry laboratories and small tests. Circulating water vacuum pump features: 1. Recycle water to save precious water resources. 2. Compared with other types of vacuum pumps, it saves electricity by more than 35%. 3. The special fluid muffler reduces the gas in the water. 4. Dual-tap, dual-meter display, which can be used alone or in parallel. 5. Resistant to acid, alkali and solvent corrosion. 6. The special motor is produced by a well-known motor manufacturer and is sealed with fluorine rubber. There is no corrosive gas intrusion inside the motor. 7. The water in the sink needs to be replaced regularly to ensure the purity of the water, to ensure the vacuum, and to avoid dirt. 8. It can be used to extract corrosive gas, and the water change cycle needs to be shortened. 9. The pump body is made of PP, and the ejector and suction nozzle are made of stainless steel, which is more suitable for acid gases.