Yokogawa FD20 Immersion Fitting - Manual (Page 14)

IM 12B6K2-01E-E
14
4-3. Cleaning systems
The standardised design of fittings makes it
possible to mount cleaning systems directly.
The 4-hole types are especially designed for
these applications. The Yokogawa program includes two
different types of cleaning systems
(see figure 4-3):
- brush cleaning
(electrically or pneumatically driven)
- chemical cleaning
4-3-1. Selection criteria
Cleaning system Mechanical Chemical
Applications with Brush Acid Base
Oils, fats
Resins (wood, pulp) X
Emulsions of latex X
Fibers (paper, textile) X
Crystaline precipations (carbonates) X XX
Amorpheus precipations (hydroxides) X XX
Fig. 4-3a. Brush Cleaning Fig. 4-3b. Chemical Cleaning