Vacuum spool pump AVZ-20D is designed to pump air, non-aggressive gases and steam-gas mixtures, previously cleaned of drip moisture and mechanical pollution, at an environmental temperature from 10 ° C to 35 ° C., as well as to create preliminary discharge (100-200 MBAR) In high -convocation installations.
Vacuum pumps AVZ-20D, two -stage consistent action.
units; /Strong> consist of a pump, engine, and cuneiform transmission.
Materials for the performance of the flow of the pump - gray cast iron, or became ordinary brands. Pump shaft seal - cuff.
Pump and electric motor (together make up the AVZ unit) are mounted on a common foundation frame or stove; The mass of the foundation should exceed the mass of the unit by 2 ... 3 times; The transmission of rotational movement from the electric motor to the pump is carried out by cunelar transmission.
Technical characteristics
| Additional characteristics | |
|---|---|
| The largest pressure of water vapor, kPa | 3, 3 (25) |
| The speed of action in the pressure range from atmospheric to 266.644 Pa | 20 2 mm Hg. Art. |
| Frequency rotation of the shaft, cˉ¹, | 12, 83 (770) |
| Maximum residual pressure, kPa | 1,3.10-5 |
| Partial without a gas -forly | (1.10-4) |
| Full without gas -block | 1,1.10-3 (8.10-3) |
| Full with gas -block | 6.7.10-3 (5.10-2) |
| Power consumption, kW | 2.2 |
| Voltage, networks in | 380 |
| Work fluid - vacuum oil | VM-1 |
| The amount of oil per refueling, l, no less | 3.5 |
| Mass of the unit, kg, no more | 175 |
