Seko 43651 Manuel D'installation page 5

1.2 Identification label
Standard Actual dimensions: mm 53x35
1 Modello
2 Numero di fabbrica Número de
3 Anno
fabbricazione
4 Portata
5 Pressione
massima
1.3 Mechanism and gearbox
Mechanism is the device that permits to transform the electric motor rotary movement in alternate and to actuate
the plunger.
1.3.1 Adjustment of the stroke length
To obtain high accuracy performances pump must operate at ideal conditions: constant speed, pressure, viscosity.
Before turning the adjustment knob, release the adjustment by rotating of 1/4 of turn the lock screw.
Models
The variation from 0 to 100% of the maximum flow rate is obtained by rotating the adjustment knob counter clock-
wise; each revolution of the adjustment knob corresponds to a variation of 1/10 of the maximum capacity; moreover
the knob edge is subdivided in 10 parts eachone corresponding to a variation of 1/100 of the maximum flow rate
1.4 Pump head
1.4.1 Operating principle
The packing (5) on the piston (4) seals the pumpheadSuction (1) and discharge (2) valves are operated by positive
and negative pressure
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 positive
pressure inside the process chamber (3). The process liquid is discharged from the process chamber (3) into the
discharge line.
SPR0136001
Modelo Model
Serial Number
matrícula
fabricar año Manufacture year
Caudal Flow rate
Presión máxima Maximum pres-
sure
Rev. 5.2
Modèle
Numéro de fabri-
cation
Fabriquer année
Débit
Maximum pres-
sure
EN
Modell Triebwerks
Baunummer
Fertigen Jahr
Förderleistung
Maximaler Druck
3