HYDAC FILTER SYSTEMS FAM-50-M-2-A-45-Z-Z-D-Z-1/-EX02-F, Инструкция по эксплуатации и техническому обслуживанию

Страница: 31 / 88

Connecting the FAM
FAM 15-70 ATEX
en
Page 31 / 88
BEWA FAM-15-70 II 2G IIB+H2 T4 EX02 4510066 en-us 2020-01-24.docx 2020-01-24
Notes on pipes and hoses
NOTICE
Non-permitted pressure at the inlet IN / outlet OUT
Risk of malfunctions
►
Determine the pressure to be anticipated at the inlet/outlet with the
prescribed values.
Make sure that the cross-section of the connection lines is at least as large
as the cross-section of the connection threads.
In order to keep the pressure loss as low as possible, use as few threaded
connections as possible. Connect all connectors to the FAM without initial
stress.
The pressure at the inlet P
e
/ outlet P
a
depends on the height differential
between the FAM fluid surface in the tank connection (aspiration height

P
(height)
) and the line losses (

P
(line)
).
If the FAM is above the fluid surface in the tank, determine the pressure as
follows:
P
e
= -

P
(height)
-

P
(line)
P
a
= -

P
(height)
+

P
(line)
If the FAM is below the fluid surface in the tank, determine the pressure as
follows:
P
e
= +

P
(height)
-

P
(line)
P
a
= +

P
(height)
+

P
(line)
Caution: P
e zul
/ P
a zul
refers to the inlet/outlet FAM without hose.
The respective values for P
e zul
/ P
a zul
can be found in the technical data on
page 85.
Determine pressure loss

P
(height)
as follows:

P
(height)
[bar] = h/10.
Here, h stands for the distance between the suction port on FAM and the
fluid surface in tank