Models G-400 and G-405 are belt-drive, two stage vacuum pumps designed for laboratory distillation, filtration, degassing, vacuum deposition and as roughing pumps in high vacuum systems. The relatively low pump operating speeds and large oil reservoirs ensure long and trouble-free operation.

These pumps are mounted on rectangular steel base plates and have V-belts and guards. They are supplied come with a quart of oil.

Model G-405 is fitted with a gas ballast which consists of a valve that allows a controlled portion of air to be bled into the pump exhaust stage. This permits rapid purging of entrained water vapor in the pump oil. This allows totally closed operation to achieve maximum vacuum.

Please refer to the ordering and specification information tabs below before making your selection.

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Specifications
Ordering Information

Specifications for Vacuum Pumps

	G-400	G-405	G-402
Vacuum Capacity:	3 x 10-4 Torr	1 x 10-4 Torr	1 x 10-4 Torr
Free Air Capacity:	10 l/min, 0.35 CFM	79 l/min, 2.8 CFM	85 l/min, 3 CFM
Motor Power:	1/4 hp	1/2 hp	1/3 hp
Operating Speed:	350 RPM	525 RPM	1725 rpm
Inlet Fitting:	3/8 NPT	7/8 NPT	1/4 barb
Oil Capacity:	1 qt	1 1/2 qt	26.4 oz
Length:	18 1/2 in (47cm)	17 1/4 in (43.8cm)	15 1/2 in (39cm)
Width:	10 in (25.4cm)	11 1/2 in (29.2cm)	6 1/2 in (17 cm)
Height:	10 3/4 in (27.3cm)	13 in (33 cm)	11 1/4 in (29cm)

MODEL	DESCRIPTION
G-400	Vacuum Pump, 3 x 10-4 Torr, 115 V, 60 Hz 1 phase
G-40010	Vacuum Pump, 3 x 10-4 Torr, 230 V, 60 Hz 1 phase
G-405	Vacuum Pump, 1 x 10-4 Torr, 115 V, 60 Hz 1 phase
G-40510	Vacuum Pump, 1 x 10-4 Torr, 220 V, 50 Hz 1 phase
G-402	Direct Drive Vacuum Pump, 115 V, 60 Hz, 1 phase
G-40210	Direct Drive Vacuum Pump, 230 V, 50 Hz, 1 phase

Vacuum Pumps

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