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3.3.2 Replacing the diaphragm
Notes on cleaning metering pumps with hygienic pump head
WARNING!
Sparking from static charge
Electrostatic sparks can jump from the diaphragm.
–
Only remove the dosing head outside of explosive
atmospheres.
CAUTION!
Damage due to the possible falling of the heavy Sigma 3
dosing head (types 070410, 070580, 040830 and
041030): Weight: 32 kg.
–
Use lifting straps to move the large dosing head.
1
2
3
4
5
6
7
Fig. 15: Cross-section through the Sigma Hygiene liquid end
1
O-ring
2
Connector section
3
Valve housing
4
Ball
B1285_3
25
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