SOR Vane Operated Flow Switch - Manual

Form 588 (04.13) ©SOR Inc. 1/4
This device is intended as a flow/no-flow device only. It is not recommended
for use as an accurate measurement device. The 900 Series Flow
Switch is designed for vertical mounting only.
900 Series
Flow Switches
General Instructions
Registered Quality System to ISO 9001
Design and specifications are subject to change without notice.
For latest revision, go to www.sorinc.com
NOTE: If you suspect that a product is defective, contact the factory or
the SOR
® Representative in your area for a return authorization number
(RMA). This product should only be installed by trained and competent
personnel.
Installation
Step 1 - Vane Length
Vane clearance is critical for proper operation of the switch. In order
to ensure this clearance, the following procedure should be followed:

Measure “C” on the existing pipe run (See
on page 2).

Trim vane (if necessary) to ensure a minimum of 3/16” vane clearance
when installed. Allow for thread engagement.
Step 2 - Installation

Thread bushing into pipeline coupling and align arrows in direction of flow.
(Arrows are located on fitting.)
Step 3 - Flow Adjustment
The flow rate on each switch may be externally adjusted following this procedure:

Remove the switch housing cover.

Remove the hex head plug located at the end of the enclosing tube (See on page 2).

Adjust the switch adjustment screw to the flow required. To increase switching flow
rate, turn screw clockwise. Maximum flow adjustment is approximately 10 turns.
w
y or
mber
etent
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wed:
clearance
If vane is removed from unit for trimming, proper re-assembly is essential,
keeping small vane in its original position (See
on page 2).