Refer to the Mounting notes and Commissioning notes.
Note the correct direction of flow, for both two-port and three-port valves, as shown in the diagrams below.
Recommendation
Fit a strainer upstream of the valve to increase reliability.
Warning
The direction of flow for two-port valve MUST be as indicated by the arrow, from A → B.
MVI422…two-port valve |
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De-energized position: Port “A” closed |
Three-port valves can be used in both diverting and mixing circuits.
When used in diverting circuits, the direction of flow for three-port valve is as indicated by the arrow in the valve body, from AB → B and AB → A (recommended) .
When used in mixing circuits, the direction of flow for three-port valves is opposite the arrow in valve body, from A → AB and B → AB.
MXI422…three-port valve (diverting circuits) | MXI422…three-port valve (mixing circuits) |
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De-energized position: Port “A” closed | De-energized position: Port “A” closed |
