ZUWA Impeller Pumps
17
9.3 Mechanical pressure switch
The pressure switch stops the pump once the
preset pressure of 3 bar is reached (top switching
point). When pressure reaches the lower switching
point the pump will start automatically. Switch
hysteresis is set to 30% as standard.
connector plug
The top switching point can be adjusted with the
setting screw located beneath the connector plug.
>
Remove connector plug and turn setting screw
with a small screw driver:
- turn
right
for
higher
pressure
- turn
left
for
lower
pressure
Switch hysteresis can not be adjusted.
Technical data
pressure switch and
connector plug
setting screw
switch pressure:
adjustable from 1 – 10 bar
switch current:
4 A
connecting thread:
1/4"
protection class:
IP 65 with plug
switch box:
stainless steel or brass
membrane:
FKM as standard
9.4 Tool for changing the impeller
A useful tool to install the impeller easily into the casing. Suitable for all ZUWA
impellers.
