Use features: DLSB- series low circulating pump, it is to take mechanical forms of low-temperature liquid refrigerant circulating equipment. Providing a liquid having a low temperature, low temperature water bath effect. Combined with a rotary evaporator, vacuum freeze drying oven, circulating water pumps, magnetic stirrer and other equipment, chemical reaction operations and drug versatile low temperature storage. Large-scale cryogenic cooling circulation pump constant current, circulating fluid to meet the electron microscope, electron probe, ultra-high vacuum sputtering, X-ray machines, lasers, accelerated cooling needs together lamp valuable equipment. For high-purity metals, rare physical purification, environmental experiment and magnetron sputtering, vacuum coating and other large equipment, available to meet the cooling water temperature, water purity requirements. The device is especially suitable for the need to maintain a low temperature, chemistry, biology, physics laboratory work under normal conditions, is medicine, chemical industry, food industry, metallurgy industry, universities, scientific research, genetic engineering, polymer engineering test specifications necessary equipment (can be customized large-capacity cryogenic coolant circulation pump according to user needs) Model chamber.