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The Omnitrol Model 613 single stage control and
the Model 713 two stage, (Dual Actuator), control
are top mounted level switches of the adjustable
differential type and utilize porcelain as standard
displacer material. Porcelain offers several
advantages such as low cost and high density for
use in applications such as sewage, oils, paints
and foaming and surging liquids. The displacer is
styled, and the surface glazed, to help prevent
adherence of oils and other contaminants
common to applied processes. These controls
have solid displacers which are unaffected by
pressure, leakage, and collapsing. With a simple
field adjustment the displacer can be positioned
to any desired elevation below the mounting
connection to open and/or close an electric or
pneumatic switch. |
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| Specific Gravity | 1.7 | 1.6 | 1.5 | 1.4 | 1.3 | 1.2 | 1.1 | 1.0 | .95 | .90 | .85 | .80 | .75 | .70 | .65 | .60 | .55 | .50 |
| Differential Inches | 1.72 | 1.81 | 1.91 | 2.02 | 2.15 | 2.30 | 2.49 | 2.70 | 2.84 | 2.98 | 3.10 | 3.31 | 3.51 | 3.74 | 4.00 | 4.32 | 4.68 | 5.12 |
| Differential mm. | 44 | 46 | 48 | 51 | 55 | 58 | 63 | 69 | 72 | 76 | 79 | 84 | 89 | 95 | 102 | 110 | 119 | 130 |
| Specific Gravity | 1.2 | 1.1 | 1.0 | .95 | .90 | .85 | .80 | .75 | .70 | .65 | .60 | .55 | .50 |
| Differential Inches | 2.30 | 2.49 | 2.70 | 2.84 | 2.98 | 3.10 | 3.31 | 3.51 | 3.74 | 4.00 | 4.32 | 4.68 | 5.12 |
| Differential mm. | 58 | 63 | 69 | 72 | 76 | 79 | 84 | 89 | 95 | 102 | 110 | 119 | 130 |