Rotary three vane vacuum pumps NVRT are designed for evacuating from sealed vessel air and nontoxic explosive and fire hazardous gases, which are non-aggressive to the pumped fluid and construction materials, vapors and gas-vapor mixtures which are precleared from condensed moisture and mechanical pollutions with oxygen content not more than in air (21 % by volume) at normal conditions. Pumping down goes from atmospheric to ultimate pressure under the condition that outlet pressure does not exceed atmospheric more than on 9,3 kPa (70 Torr). They are intended for operation at the ambient temperatures from + 10 0С to +35 0С and are not designed for use in fire and explosion hazardous industries.
One stage rotary three-vane vacuum pump NVRT-15 is designed for long-term work on the pressures close to atmospheric.
Advantages to the user
– simple design
– high reliability
– simple to operate
-the problem of cooling solved division of pump cylinder and oil separator