Rotary Vane Compressors and Vacuum Pumps

Rotary Vane Compressors and Vacuum Pumps

Table of Contents

Why use a Rotary Vane Compressors and Vacuum Pumps?

Rotary Vane vacuum pumps and compressors have certain significant advantages. In addition to providing smooth,pulse-free air flow without receiver tanks, they are compact (or equivalently offer high flow capacities for a given size), are simple and economical to install and operate, have low starting and running torque requirements, produce minimal noise or vibrations, are capable of long, service-free life, and are easily serviced.

If these features are what you need in your pneumatic application, a Gast Rotary Vane model can provide you the right solution.

Reliable
The moving parts consist of an actuating rod supported by two special synthetic rubber diaphragms. They oscillate laterally, permitting a minimum of 30,000 hours of continuous operation on many models. Other than the occasional filter cleaning, operation is virtually maintenance-free. Replacement parts come in a cassette.
Quiet
Sound insulation was a prime con sideration in the design of the pneumatic circuit and mechanical section. The result: a surprisingly low operating noise level – as low as 38 dB(a).
Energy Efficient
Operation is based upon the principles of electromagnetic oscillation. It eliminates the need for sliding parts, minimizing power consumption.
Clean Air
Because there are no sliding parts there is no need for lubrication. An added advantage: the exhausted air is always clean and particle-free.
Smooth Flow
Uniform exhaust rate and minimal pulsation make the Linear products ideal for applications requiring consistent air pressure and supply.

How Does a Rotary Vane Pump Work?

Pumping action is pro duced by a series of sliding, flat vanes as they rotate in a cylindrical hous – ing. As the diagram shows, an eccentrically mounted rotor turns and the individual vanes slide in and out of their slots by centrifugal and pressure-loading forces. This creates a series of air compartments of unequal volume against the wall of the housing. These compartments get larger during the suction part of the cycle, creating vacuum at the intake port and smaller during the discharge portion of the cycle, creating pressure at the exhaust port. The vacuum and pressure flows are free of pulsation because the inlet and exhaust ports do not have valves, and the air is moved continuously rather than intermittently.

Gast Rotary Vane and Vacuum Pumps Performance*

Gast Rotary Vane and Vacuum Pumps Performance

Rotary Vane Performance Overview

MODEL/
SERIES		 POWER RATING FREE AIR FLOW MAXIMUM
PRESSURE		 MAXIMUM
VACUUM
60 Hz CFM m³/h
hp kW 50 Hz 60 Hz 50 Hz 60 Hz psi bar inHg mbar Page No.
Motor Mounted
1531 ¹/₁₀   1.25 1.5   2,5 15 1,0 20 335 7
532 ¹/₁₅ 0,05 .29 .6 0,49 1,0 15 1,0 20 335 8
1032 ¹/₁₅ 0,05 .92 1.1 1,56 1,9 10 0,7 20 335 8
1532 ¹/₁₀ 0,07 1.3 1.5 2,2 2,5 10 0,7 20 335 8
2032 ¹/₈ 0,09 2.0 2.4 3,4 4,1 10 0,7 26 133 10
3032 ¹/₆ 0,12 2.4 2.6 4,1 4,4 10 0,7 26.5 116 10
211 ¹/₆ 0,12 1.1 1.3 1,9 2,2 20 1,4 20 335 12
0323-1423 (6 models) ¹/₄ -1 0,19 - 0,56 2.7 - 11.5 3.2 - 13 4,6 - 19,5 5,4 - 22 10 0,7 26.5 116 14 - 17
AT Series ¹/₄ 0,19 3.8 - 4.8  -   - 6,5 - 8,2 5 0,4 24 150 18
2070 2 1,5 16 20 27 34  -  -  25 167 20
Separate Drive
533 ¹/₁₅ 0,05 .5 .6 0,85 1,0 15 1,0 20 335 22
1033 ¹/₁₀ 0,07 .9 1.1 1,53 1,9 15 1,0 20 335 22
1034 0.18 0,13  - 1.6  - 2.7 10 0,7 20 335 23
1534 0.18 0,13  - 2.2  - 3.7 10 0,7 20 335 23
0240-0740 ¹/₄ - ¹/₃ 0,19 - 0,25 1.5 - 4.9 1.9 - 6.0 2,5 - 8,3 3.2 - 10 10 0,7 20 335 25
465 ¹/₄ 0,19 3.4 4.0 5,8 6,8  -  - 28 335 28
765 ¹/₃ 0,25 5.0 6.0 8,5 10  -  - 28 65 28
1550 ³/₄ 0,56 11.5 14.5 19,5 24,7 15 1,0 20 65 29
1065-2565 ¹/₂ -1 ¹/₂ 0,37 - 1,1 7.3 - 16.5 8.5 - 21 12 - 28 14,4 - 35,7 25 1,7 28 335 31
2067-2567 1-1 ¹/₂ 0,75 - 1,1 14 - 17 25 - 45 24 - 29 29 - 35,7 15 1,0 28 65 33-36
2080-4080 2-5 1,5 - 3,7 20 - 37 40 34 - 63 42 - 76 15 1,0 25 167 38
3040 2 1,5 31 47.5 53 68 10 0,7 20 335 41
4565 3 2,2 36 55 61 80,1 15 1,0 25 167 44
5565 3 2,2 45 55 76 93,5  -   - 20 335 46
6066 5 3,7 45 55 76 93,5 15* 1,0 25 167 47
1290* 10 7,5  -  112  -  190 20 1,4  -  -  49

*Standard model performance. Soil sparging model capable of 20 psi.
**Soil sparging model.

Catalog Performance Specifications

The specifications listed are that of a unit at sea level with an ambient temperature of 70°F (21°C), operating with normal electrical current conditions. The figures stated in this catalog are nominal approximations for models without accessories. Intake filters and exhaust mufflers, and the accumulation of contaminants in them during operation, will decrease the flow of air as well as the achievable pressure.

The units that we list in this catalog are a small portion of what we actually make. Those listed are considered “standard units” and are normally available from stock in small quantities. Variations are produced for many customers and by passing on to us the application specifications we might find an existing unit that fits your requirement. If we don’t and the quantity is sufficient, we will design a “special unit” for the application.

Pictorial and dimensional data is subject to change without notice.

The information presented in this catalog is based on technical data and test results of nominal units. It is believed to be accurate and is offered as an aid in the selection of Gast products. It is the user’s responsibility to determine suitability of the product for intended use and the user assumes all risk and liability whatsoever in connection therewith.

Typical Applications

Environmental Applications
  • Air sampling
  • Breathing air supply
  • Sewage aeration
  • Soil sparging
Medical Applications
  • Dental surgical suction
  • Dental vacuum mixers
  • Medical aspiration
  • Circulation therapy
Graphic Arts Applications
  • Envelope openers
  • Collating inserters
  • Vacuum frames
Other ApplicationsOther Applications
  • Pond aeration
  • Vacuum hold-down
  • Vacuum forming
  • Air bearings
  • Oil atomization
  • Food processing
  • Laboratory vacuum
  • Milking equipment

Product and Application Information

Unit Life Expectancy

Many variables determine the life expectancy of a unit.
Among them are:

1. Ambient temperature 
Gast’s units operate best within a temperature range of 32 °F (0 °C) to 100 °F (38 °C). Lower temperatures affect a unit’s ability to start and higher tem peratures affect its life. Contact the factory for authorization of unusual ambient conditions.

2. Duty level
3. Operating cycle
4. Operating speed
5. Condition of air handled
– Cleanliness
– Humidity
– Heat
– Chemical vapors present (corrosive, noncorrosive)

6. Unit maintenance
– Lubrication (if required)
– Filter maintenance
– Muffler maintenance

Electric Motors
All electric motors supplied with Gast vacuum pumps are designed to operate at plus or minus 10% of nameplate voltage. Motors to meet special requirements are available upon request. Various brand-name motors are furnished on any model at the discretion of Gast.
Graphic Arts Applications
Rotary vane units will start under load. The vanes permit the internal chamber of the unit to bleed off during the cycle. At start-up, the pump is not subjected to full load until enough centrifugal force has been attained to throw the vanes out against the body. By that time, the motor has gained momentum to continue its cycle without stress.
Continuous vs. Intermittent Operation
Continuous vs. intermittent duty usually must be considered. Our definition of intermittent duty is 10 minutes or less on and 10 minutes or more off. Please note that when you refer to performance curves in this catalog, the solid line indicates continuous operation, while the dashed line shows intermittent duty.
European Community’s Machinery Directive
Given its international perspective, Gast has also pledged to conform to the European Community’s Machinery Directive, a safety certification program for all products targeted for marketing in the European Community. Currently, all Gast products sold in the European Community are in compliance and include a Declaration Certificate.

Rotary Vane Compressors and Vacuum Pumps Other Spec.

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MECHANIKA Co., Ltd. Head office 255/1 Floor 4 Charoen Krung Road, Ban Bat Subdistrict Pom Prap Sattru Phai District, Bangkok 10100