ProMinent Makro TZ Operating Instructions Manual page 20

Function description
Page 20
Function description of a piston liquid end (for TZKa)
The heart of the liquid end is a highly resistant, coated stainless steel piston (2). When the piston
(2) moves into the liquid end the suction valve (1) closes and the feed chemical flows out of the
liquid end via the discharge valve (3). When the piston (2) moves in the opposite direction the
discharge valve (3) closes due to the negative pressure in the liquid end and fresh feed chemical
flows into the liquid end via the suction valve (1).
The flushing collar (5) enables the user to rinse the piston sealing surface or drain off leakage
fluid.
3
2
1
Fig. 14
4 5
1 Suction valve
2 Piston
3 Discharge valve
4 Packing collar
5 Flushing collar
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