INSTRUCTION MANUAL FOR VISUAL FLOW INDICATORS
1. INSTRUMENT DESCRIPTION
Visual flow indicators are normally used to display the passage of liquids; moreover, there are models that are even pre-
arranged to sense gaseous fluids.
Visual flow indicators of the free-passage type are designed to be fitted in whatever position within the system, both
vertically and horizontally, and with a two-directional flow.
- "model SLE": free-passage sight glass;
- "model SCE": free-passage sight glass with chain to further improve the fluid passage display.
- "model SBE": free-passage sight glass with fixed paddle to create whirlpools within the flow and further improve the
flow passage display;
- "model SBB": free-passage sight glass with drip for a typical application within distillation processes;
- "model E": free-passage sight glass with glass tube;
- "model SPG": free-passage sight glass with threaded ring nuts;
- "model SPV": free-passage sight glass with rotating impeller.
As regards visual flow indicators of the moving paddle type, the direction and the sense of the flow are well known and
shall always be respected.
- "model SPA": sight glass of the moving paddle type for vertical mounting with ascending fluid;
- "model SPD": sight glass of the moving paddle type for vertical mounting with descending fluid;
- "model SPO": sight glass of the moving paddle type for horizontal mounting with fluid rate measurement.
There are another two types of sight glass that are used as visual windows for mounting on vessels:
- "model SSR": with circular-shaped;
- "model SSL": with oval-shaped.
Finally, there are also two models in which display of passage to liquids, isn't carried on directly from the porthole, but
through a returned indicator (these two models are suitable for hogh pressures and/or temperature):
- "model CV-TM": sight glass with valve type body;
- "model SPO-TM": sight glass with body "SPO" model.
24010 Ponteranica (Bergamo) ITALY - via Serena, 10 - Phone +39 035 4530211 - Fax +39 035 570546 - www.officineorobiche.it - e-mail: info@officineorobiche.it
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OFFICINE OROBICHE S.r.l.
Information subject to change without prior notice
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