3B Scientific Water-Jet Pump User Manual

Instruction sheet

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Instruction Sheet

3B SCIENTIFIC® PHYSICS

U16050 Water jet pump

6/03 ALF

®

The water jet pump is well suited for experiments in a
low or coarse vacuum, in particular for introductory
experiments in vacuum physics e.g. the Magdeburg
hemispheres, density of air, buoyancy in air, boiling at
reduced pressure, sound propagation in air/vacuum
etc.

1. Safety instructions

• Before the water jet pump is put into operation

check for damage and tight fit of seals (washers).

• When connecting the pump to the water tap do

not use force while tightening the valve nut.

2. Description, technical data

The dismountable water jet pump consists of a plastic
tube, in whose upper end 2 different connecting sleeves
can be screwed in for connection to the water tap. The
hose nipple located on the side is used to attach the
experiment device. An integrated sleeve located in the
pump under the air inlet serves as a non-return valve
to counteract any water backlash.

Connection sleeves:

Valve nut R 3/4" for water tap with R 1/2"
Valve nut R 1/2" for water tap with R 3/8"

Suction capacity at a water pressure of 3 bar: 250 l/h

Final total pressure at a water
temperature of 15°C:

approx. 15 mbar

Minimum water pressure required: 2 bar
Pump-out time for 5 l container:

6 up to 10 min

Length:

24 cm

Weight:

50 g

Material:

plastic

2.1 Scope of supply
1 Water-jet pump
2 Connection sleeves and valve nuts
2 Washers between the connection sleeves and the

water tap

1 Washer between the connection sleeve and the jet

nozzle

1 Sleeve (non-return valve)

3. Operation

• Before connecting the pump to the water tap check

seals (washers) for leakage.

• Connect the water jet pump to the water tap.

• Establish a connection to the experiment device or

the receptacle.

• Turn the water tap on full.

Additionally required:
Vacuum tube e.g. U10140

3B Scientific GmbH • Rudorffweg 8 • 21031 Hamburg • Germany • www.3bscientific.com • Technical amendments are possible

1

Connection sleeve

2

Water jet pump

3

Sleeve

4

Valve nut

5

Washers

6

Hose nipple

1

2

3

4

5

1

6

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