Flange Connection; Minimum Pressure - Biral LX Instrucciones De Instalación Y Funcionamiento

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4.6 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.

4.7 Minimum pressure

At 75° the minimum pressure
at the pump intake,
when the pump is running,
is to ensure lubrication
of the sleeve bearings:
english
Safety elements (such as spring lock washers)
Warning
are not admissible.
Use the appropriate screws
for the given nominal pressure PN.
PN 6
DN 40
DN 50 M 12
DN 65
Admissible screw torque:
for M 12 40 Nm
for M 16 95 Nm
The installation of combination flange
with combination flange is not admissible.
LX
Single pumps
LX 325, LX 401, LX 402
LX 326, LX 403
LX 502
LX 503, LX 504
LX 652
LX 653, LX 654, LX 655
LX 802, LX 803
HX
Single pumps
HX 402, HX 402-1
HX 501, HX 502,
HX 501-1, HX 502-1
HX 652
HX 802
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:
A
PN 10 / PN 16 PN 6
M 16 Ø 14
LXD
Twin pumps
LXD 401, LXD 402
LXD 403
LXD 503, LXD 504
LXD 653, LXD 654, LXD 655 0,6 bar
LXD 802, LXD 803
HXD
Twin pumps
HXD 402-1
HXD 501-1, HXD 502-1
HXD 652
HXD 802
90 °C
110 °C
140 °C
B
PN 10 / PN 16
Ø 18
0,1 bar
0,1 bar
0,1 bar
0,2 bar
0,5 bar
0,6 bar
0,4 bar
0,5 bar
1,0 bar
1,6 bar
0,35 bar
1,10 bar
3,30 bar