N 938.50 K_.18 Series

Flow rate (at atm. pressure)

Up to

l/min

Vacuum

Down to

mbar abs.

Pressure

0.5

bar g

LABOPORT® Diaphragm Pumps for Air, Gases and Vapors

KNF N 938.50 series comprises a range of double-headed, dry-running pumps for use numerous laboratory applications. The N 938.50 KT.18 is ideal for degassing and desiccation.

These laboratory pumps are equipped with parallel and series connection for the pump heads—resulting in a high pneumatic performance, a durable product and compact size.

Special valves ensure that the pumps can cope easily with vapor and condensation.

Features
- Environmentally friendly
- Maintenance free
- 100% Oil-free operation
- High level of gas tightness
- Pure transferring and evacuation of gases
- Version for slightly aggressive or corrosive gases and vapours

Technical Details

Flow rate l/min at atm. pressure	32
Ultimate vacuum mbar abs.	12 / N 938.50 KN, 15 / N 938.50 KT
Operating pressure bar g	0.5
Hose connections mm	ID 10
Permissible gas and ambient temperature °C	+5° to +40°C
Voltage V	230 V
Frequencies Hz	50 Hz
Motor protection	IP 20
Power P₁ W	110 W
Operating current A	0.6 A
Weight kg	6.8 kg
Dimensions L×H×W (mm)	317×212×110

Motors with other voltages and frequencies on request

Materials
- Pump head: PPS
- Diaphragm: EPDM for 938.50 KN; PTFE-coated for 938.50 KT
- Valves: EPDM for 938.50 KN; FFPM for 938.50 KT
Accessories
Title Order No.
Silencer G 1/8 007006
Hose connector G 1/8, PVDF, for tube ID 10 112004
Fine control valve with vacuum gauge suction side 112432
Spares Kit for N 938.50 KN 124808
Spares Kit for N 938.50 KT 124809

Title		Order No.
Silencer	G 1/8	007006
Hose connector	G 1/8, PVDF, for tube ID 10	112004
Fine control valve with vacuum gauge	suction side	112432
Spares Kit	for N 938.50 KN	124808
Spares Kit	for N 938.50 KT	124809

Related Products

Model Current	Flow rate (at atm. pressure)l/min	Vacuummbar abs.	Pressurebar g
N 938.50 K_.18 Series	Up to 32 l/min Flow rate (at atm. pressure) l/min	Down to 12 mbar abs. Vacuum mbar abs.	0.5 bar g Pressure bar g	Learn more
N 920 G	21 l/min Flow rate (at atm. pressure) l/min	2 mbar abs. Vacuum mbar abs.	0.5 bar g Pressure bar g	Learn more
N 86 K_.18 Series	Up to 6 l/min Flow rate (at atm. pressure) l/min	Down to 100 mbar abs. Vacuum mbar abs.	Up to 2.5 bar g Pressure bar g	Learn more
N 816.3 K_.18 Series	16 l/min Flow rate (at atm. pressure) l/min	Down to 15 mbar abs. Vacuum mbar abs.	0.5 bar g Pressure bar g	Learn more
N 816.1.2 K_.18 Series	30 l/min Flow rate (at atm. pressure) l/min	Down to 100 mbar abs. Vacuum mbar abs.	0.5 bar g Pressure bar g	Learn more

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Diaphragm Vacuum Pumps and Compressors

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