ROTARY VANE COMPRESSORS & VACUUM PUMPS - GAST - (Version JPG) - Page n° 3 - PDF Catalogue | Technical Documentation

( :c^r Product and Application Information

This catalog presents the models primarily in ascending order of free air flow, with motor mounted styles first followed by our separate drive offerings. The table below will assist you in locating a particular model or series.

How does a Rotary Vane pump work?

Pumping action is produced by a series of sliding, flat vanes as they rotate in a cylindrical housing. 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.


MODEL/ SERIES	POWER RATING @ 60 Hz		FREE AIR FLOW				MAXIMUM PRESSURE		M AXIM UM VACUUM		Page No.
	POWER RATING @ 60 Hz		cfm		m³/h		MAXIMUM PRESSURE		M AXIM UM VACUUM
	hp	kW	50 Hz	1 60 Hz	50 Hz	60 Hz	psi	bar	" Hg	mbar
Motor Mounted
1531	7.0		1.25 .1.5		2,5		15	1,0	20	335	4
0532	7.5	0,05	.29 .s		0,49 1,0		15	1,0	20	335	5
1032	7.5	0,05	.92	1.1	1,56	1,9	10	0,7	20	335	5
1532	7.0	0,07	1.3	1.5	2,2	2,5	10	0,7	20	335	5
2032	'/a	0,09	2.0	2.4	3,4	4,1	10	0,7	26	133	7
3032	7s	0,12	2.4	2.6	4,1	4,4	10	0,7	26.5	116	7
0211	'/s	0,12	1.1	1.3	1,9	2,2	20	1,4	20	335	9
0323-1423 (5 models)	'/4-1	0,190,56	2.7-11.5	3.2-13	4,619,5	5,4-22	10	0,7	26.5	116	11-14
RV Series	'/s	0,12		3,8-4,8	—	6,5-8,7	5	0,33	15	492	15
2070	2	1,5	16	20	27	34			25	167	16
Separate Drive
0533	^./.5	0,05	.5	.6	0,85	1,0	15	1,0	20	335	18
1033	^./.0	0,07	.9	1.1	1,53	1,9	15	1,0	20	335	18
1034	.18	0,13	—	1.6	—	2,7	10	0,7	20	335	19
1534	.18	0,13	—	2.2	—	3,7	10	0,7	20	335	19
0240-0740	'/4-'/3	0,190,25	1.5-4.9	1.9-6.0	2,58,3	3,2-10	10	0,7	20	335	20
0465	^./4	0,19	3.4	4.0	5,8	6,8	—	—	28	65	22
0765	^./3	0,25	5.0	6.0	8,5	10	—	—	28	65	22
1550	³/4	0,56	11.5	14.5	19,5	24,7	15	1,0	20	335	22
1065-2565	'/2-1 '/2	0,37-1,1	7.3-16.5	8.5-21	12-28	14,4-35,7	25	1,7	28	65	24
2067-2567	1 -1 '/2	0,75-1,1	14-17	17-21	24-29	29-35,7	15	1,0	28	65	26-28
2080-4080	2-5	1,5-3,7	20-37	25-45	34-63	42-76	15	1,0	25	167	29
3040	2	1,5	31	40	53	68	10	0,7	20	335	31
4565	3	2,2	36	47.5	61	80,1	15	1,0	25	167	33
5565	3	2,2	45	55	76	93,5	—	—	20	335	34
6066	5	3,7	45	55	76	93,5	15*	1,0	25	167	35
1290**	10	7,5	—	112	—	190	20	1,4	—	—	35

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

Product and Application Information

Electric Motors

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.

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 C€ 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. 3

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 temperatures 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

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.

Starting Under Load

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 enough momentum to continue its cycle without stress.

ROTARY VANE COMPRESSORS & VACUUM PUMPS - GAST - #3

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