Rotary Vane Pumps


Rotary Vane Vacuum Pump China | Rotary Vane Pump China

A rotary vane pump is actually a positive-displacement pump that consists of vanes mounted to a rotor that rotates within a cavity. In some instances these vanes can have variable length and/or be tensioned to maintain contact with the walls as the pump rotates. It was invented by Charles C. Barnes of Sackville, New Brunswick, who patented it on June sixteen, 1874. There are already a variety of enhancements, including a variable vane pump for gases (1909). They can be regarded as significantly less suitable than other vacuum pumps for high-viscosity and high-pressure fluids, and are complicated to operate. They could endure short periods of dry operation, and are thought of superior for low-viscosity fluids.

Single-stage rotary vane vacuum pumps

◆ Use scope

The single stage oil cycle vacuum pumps of spiral slice type of series SYF and double stage oil cycle vacuum pumps of spiral slice type of the series of 2SYF are essential equipment for abstracting the gas from obturational container to get vacuum. The double stage vacuum pumps of spiral slice type of the serie of 2SYF used for abstracting to get vacuum again on the basis of single stage pumps. It can make the system achieve the highest point vacuum.

◆ Features

(1) The design of preventing oil-returning
The passage of gas admission is specially designed to prevent the returning of pumps oil delivering the abstracted container and pipeline after the pumps stop operating.
(2) The design of enviromental protection
The design of built-in device of mist eliminating, and set oil-gas seperator on the vent, both deal with the pollution of oil during the course of exhausting efficiently.
(3) Aluminium alloy casing of electric machinery
The electric machinery use aluminium alloy casing, it has high efficiency of heat emission, and ensure long time normal operation continously, it also has better appearance quality.
(4) The design of integration
The electric machinery and pumps use the design of integration making the products more severe and reasonable.
(5) Big starting up moment
Our product designs specially aiming at the enviroment of low temperation and electric pressure. ensuring the machine starts normally at lower temperatue of winter enviroment(≥-5℃) and low electric pressure(≥180V)

Technique parameter

Type Single stage vacuum pumps of spiral slice type
Model SYF-1C SYF-1.5A SYF-2B SYF-3B
Voltage 220V 110V 220V 110V 220V 110V 220V 110V
50Hz 60Hz 50Hz 60Hz 50Hz 60Hz 50Hz 60Hz
Free Air Displacement (m3/h) 3 3.6 4.5 5 6 7.2 10 12
CFM 1.3 1.5 2 2.5 3.5 4.5 6.5 8.5
Ultimate vacuum Pa 10 10 10 10
Microns 100 100 100 100
Motor 1/4HP 1/4HP 1/3HP 3/4HP
Intake Fitting 1/4″ Flare 1/4″ Flare 1/4″ Flare 1/4″ Flare
3/8″ Flare 3/8″ Flare
Oil capacity 220ml 220ml 250ml 600ml
Dimensions 290X110X240(mm) 315X120X240(mm) 336X138X255(mm) 385X140X280(mm)
Net weight 7.2kg 9kg 12.5kg 23.5kg

Rotary Vane pump are commonly applied as high-pressure hydraulic pumps and in vehicles, together with supercharging, power-steering, air conditioning and automatic-transmission pumps. Pumps for mid-range pressures consist of applications this kind of as carbonators for fountain soft-drink dispensers and espresso coffee machines. On top of that, rotary vane pumps is usually utilised in low-pressure gas applications such as secondary air injection for automobile exhaust emission handle, or in low-pressure chemical vapor deposition programs.

Double-stage rotary vane vacuum pump china

Technique parameter

Type Double stage vacuum pumps
of spiral slice type
Model 2SYF-0.5A 2SYF-1B 2SYF-2B 2SYF-3B
Voltage 220V 110V 220V 110V 220V 110V 220V 110V
50Hz 60Hz 50Hz 60Hz 50Hz 60Hz 50Hz 60Hz
Free Air Displacement CFM 1.3 1.5 2.5 3 4 5 6.5 8
Ultimate vacuum Pa 5?0-1 5?0-1 5?0-1 5?0-1
Microns 50 50 50 50
Motor 1/4HP 1/3HP 3/4HP 3/4HP
Intake Fitting 1/4″ Flare 1/4″ Flare 1/4″ Flare 1/4″ Flare
3/8″ Flare 3/8″ Flare
  1/2″ Flare
Oil capacity 220ml 220ml 220ml 250ml
Dimensions(mm) 315*20*40 336*20*40 336*23*55 385*40*80
Net weight (kg) 9.6 12.6 20.7 22.1

Rotary vane pumps are also a frequent type of vacuum pump, with two-stage pumps in a position to achieve pressures nicely under 10?6 bar. These vacuum pumps are identified in numerous applications, such as delivering braking help in big trucks and diesel-powered passenger cars (whose engines usually do not create consumption vacuum) by a braking booster, in many light aircraft to drive gyroscopic flight instruments, in evacuating refrigerant lines through installation of air conditioners, in laboratory freeze dryers, and vacuum experiments in physics. In the vane pump, the pumped gas and also the oil are mixed within the pump, and so they has to be separated externally. For that reason, the inlet and also the outlet have a large chamber, possibly with swirl, in which the oil drops fall out of the gas. At times the inlet includes a venetian blind cooled from the room air (the pump is generally forty K hotter) to condense cracked pumping oil and water, and let it drop back into the inlet. When these pumps are applied in high-vacuum methods (wherever the inflow of gasoline in to the pump gets to be pretty minimal), a significant concern is contamination with the total technique by molecular oil backstreaming.

Rotary vane vacuum pumps Vacuum Packing

Technique parameter

Type Vacuum Packing
Model SYF-1.2B SYF-1.8B
Free Air Displacement(m3/h) 3 4.5
Ultimate Vacuum Pa 10 10
Microns 150 150
Motor (w) 160 180
Oil capacity (ml) 220 220
Dimensions (mm) 256*10*87 315*20*40
Weight(kg) 7 8.1
tube diameter (mm) Ф10