Swing Piston Pumps NPK 09
Design and function
Translation of original Operating Instructions, English, KNF 121576-121579 11/20
9
Fig. 3:
Pneumatic connection of two-headed pumps
How Swing Piston Pumps work
1
Inlet valve
2
Outlet valve
3
Working chamber
4
Retainer plate
5
Piston seal
6
Eccentric
7
Connecting rod
8
Compressor housing
Fig. 4: How Swing Piston Pumps work
Swing Piston Pumps transfer, compress and evacuate air.
The swing piston, consisting of retainer plate (
4
) and piston seal
(
5
), is moved up and down by the eccentric (
6
) and the connecting
rod (
7
). In the downward stroke the swing piston aspirates the
medium to be transferred via the inlet valve (
1
). In the upward
stroke, the swing piston presses the medium out of the pump head
via the outlet valve (
2
). The swing piston is sealed off from the
compressor housing by a piston seal (
5
) and operates oil-free.
Summary of Contents for NPK 09
Page 23: ......
Page 24: ...KNF worldwide Find your local KNF partner on www knf com...
