BE6100
Edition 08/2018
Page 2 of 13
BRINKMANN-Screw Pump Type BFS / TFS / FFS
Contents
1
Indication to the manual .................................... 2
2
Description of product and working principle .. 2-3
3
Safety instructions .......................................... 4-5
4
Transport, and Temporary storage ................... 5
5
Installation / Connection ................................. 6-8
6
Start up / Shut down .......................................... 8
7
Operation ........................................................... 9
8
Servicing and Maintenance ............................... 9
9
Trouble shooter’s guide ................................... 10
10
Spare part ....................................................... 11
11
Repair Instructions ..................................... 11-12
12
Disposal .......................................................... 12
13
EC declaration of conformity ........................... 13
1 Indication to the manual
This operating manual gives basic instructions
which are to be observed during installation, opera-
tion and maintenance of the pump. It is therefore
imperative that this manual be read by the respon-
sible personnel and operator prior to assembly and
commissioning. It is always to be kept available at
the installation site.
1.1 Identification of safety instructions in the
operating manual
Safety instructions given in this manual non-
compliance with which would affect
safety
are
identified by the following symbol
Safety sign according with ISO 3864
–B.3.1
or where
electrical safety
is involved, with
Safety sign according with ISO 3864
–B.3.6
Where non-compliance with the safety instructions
may cause a risk to the machine and it’s function
the word
ATTENTION
is inserted.
2 Description of product and working
principle
2.1 Scope
Pumping of fluids at
high backpressure. The dis-
charge pressure needs to be at least 2 bar higher
than the inlet pressure.
2.2 Application range
Screw pumps are designed for pumping filtered,
lubricating fluids (Please consult with the manu-
facturer for specific applications).
Screw pumps are used in applications where
high pressures and constant flow rates are re-
quired (e.g. general machine design, machine
tool industry, etc.)
Operate pump within the design limititations and
in accordance with section 2.6.
2.3 Working principle
The intermeshing threads of three screw spin-
dles generate liquid holding chambers.
The center spindle is driven and all three screw
spindles rotate.
The medium moves continuously and without
noticeable pulsation toward the pump discharge.
Proper clockwise rotation must be ensured at all
times. Incorrect counterclockwise rotation will
result in dry running and pump damage. Cata-
strophic failure is possible!
Screw pumps are self-priming, however, dry
running must be avoided under any circum-
stances as it will almost instantly damage the
pump and it might result in catastrophic failure.
Screw pumps are positive displacement pumps
and must therefore always be used in combina-
tion with a pressure limiting valve or pressure
relief valve.
2.4 Type code structure (example)
High pressure screw pump:
BFS 250 / 80 -G
Pump series designation
BFS, TFS or FFS
Pump size
Maximum pressure in bar
Special features
(e.g. with mechanical seal)
2.5 Pump Models
Immersion style
BFS, TFS
(-H) pressure outlet above tank plate
FFS foot mounted inline style
