Changing Seals In The Injection Assembly; Changing The Dosing Seals - dosatron DIA 2 F Manual De Utilización

CHANGING SEALS IN THE INJECTION ASSEMBLY

(with pressure off)
Frequency : At least once per year.
IMPORTANT ! Use no tool or metallic utensils.
ADVICE: Before dismantling any part of the injection assembly it is
advisable to operate the DOSATRON, injecting clean water so as to
rinse through the injection system. In this way, risks of contact with
concentrated solutions in the injection assembly are minimized.
During any such intervention, wear protective eyewear and gloves !
METHOD OF REMOVING SEAL
Fig. 12 : Between finger and thumb, pinch the component and the seal ;
push towards one side to deform the seal.
Fig. 13 : Increase the deformation to grip the part of the seal thus
exposed and pull it out of its groove.
Clean the seal seating without any tools.
Refitting is done by hand.
It is very important that the seal is not twisted once in place as this would
impair its efficiency.
© DOSATRON INTERNATIONAL / 52
Fig. 12
Fig. 13

CHANGING THE DOSING SEALS

- Change the seals at least once per year.
- Wear protective eyewear and gloves.
- Rinse the DOSATRON and the injection areas by injecting
clean tepid water.
- Turn off the water supply and allow the pressure to drop to zero.
- Take off the suction tube of product.
- Take apart the injection assembly.
- Pull downwards to remove it.
- Change out the isolation body (Fig. 14-C), the seals
(Fig. 14-J/K/L/M) and the suction valve assembly (Fig.
- Reassemble in the reverse order by hand.
Fig. 14
© DOSATRON INTERNATIONAL / 53
14-A).
C
J
K
L
M
A