4.8 Minimum pressure
At 75 °C, the minimum pressure at the pump intakes for reliable
lubrication of the sleeve bearings:
LXE/HXE
LXED/HXED
Single pumps
Twin pumps
LXE 326, LXE 403
LXED 403
0,1 bar Overpressure
LXE 504
LXED 504
0,2 bar Overpressure
HXE 402, HXE 402-1
HXED 402-1
0,4 bar Overpressure
The values apply up to 500 m (1640 ft) above sea level.
Additional pressure for greater heights:
0.01 bar per 100 m (328 ft) additional altitude.
Additional pressure for:
95 °C
0,45 bar
english
38
Install
stop slide valve
before and after the pump.
This will avoid having to drain and refill the system
if the pump has to be replaced.
4.7 Flange connection
The pump flanges are bored
with fixing holes PN6 / PN10 /
PN16.
The plain washers «B»
provided are to be installed
on the pump side to ensure
that the flanges are securely
fastened.
Admissible screw torque:
for M 12
➜
40 Nm
for M 16
➜
95 Nm
The installation of combination flange
with combination flange is not admissible.
PN 6
PN 10 / PN 16
PN 6
PN 10 / PN 16
DN 40
DN 50
M 12
M 16
Ø 14
Ø 18
DN 65
Use the appropriate screws
for the given nominal pressure PN.
A
B
Safety elements (such as spring lock washers)
are not admissible.
Warning
LXE_HXE 03.11.2006 8:36 Uhr Seite 38