Injecta Taurus TM2 Serie Manual De Instalación página 6

1.4 Pump head
1.4.1 Operating principle
Mechanical diaphragm models (fig. A)
The rod is mechanically connected to the diaphragm (4).
The diaphragm (4) is actuated by the rod and separates the pumphead (3) from the atmosphere. Suction (1) and
discharge (2) valves are operated by positive and negative pressure
Suction stroke
During the suction stroke the difference between the suction pressure and the pressure inside the process head
(3) causes the opening of the suction valve (1).
The process liquid is sucked from the suction line into the process chamber (3).
.
Discharge stroke
During the discharge stroke the suction valve (1) is closed and the discharge valve (2) will open due to the posi-
tive pressure inside the process chamber (3). The process liquid is discharged from the process chamber (3) into
the discharge line
Membrana mecca-
nica
Valvola di aspira-
1
zione
2 Valvola di scarico
3 Testata
4 Membrana
7 Pistone
- Fig. A -
Membrana meca- Mechanical diaph-
nica ragm
Válvula de aspi-
Suction valve
racón
Válvula de impul-
Discharge valve
sión
Cabeza Pump head
Membrana Diaphragm
Piston Piston
DosingPump.ir
rev. 4.0 EN
Membrane meca- Mechanische
nique Membran
Vanne d'aspiration Ansaugventil
Vanne de refoule-
Auslaßventil
ment
Tête Prozeßkammer
Membrane Membran
Piston Kolben
4