Cla-Val 133VF - Manual (Page 2)

3” valve flow rate
8” valve flow rate
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133VF System Using Differential Pressure Sensing
Typical 133VF System installation where the differential pressure transmitter is valve mounted. As the pressure
reducing valves transition between low flow and high flow conditions, SCADA operators can monitor valve flow
rates to determine the most efficient operation of the pressure reducing station. Provide for adequate protection
from lightning strikes.
Wiring Diagram
133VF Purchase Specification
The model 133VF Valve Flow Measurement System shall be specified and installed on a new or existing valve with “KVF” suffix letters
inserted after the model number of Cla-Val standard hydraulic control valve (i.e.: 90-01AB-KVF) and shall be capable of calculating flow
in common measurement units. It shall use a valve mounted position transmitter rated NEMA type 6P for temporary submersible oper-
ation that shall track valve position from 0 to 100%. It shall also be equipped with a differential pressure transmitter or an inlet and out-
let pressure transmitter with a NEMA 4X rating and shall have infinite ranging ability. The transmitters shall also be capable of being
zeroed in the field to compensate for elevation and temperature changes. Information from these transmitters shall be assimilated into
a flow module capable of computing flow when the pressure differential is measured at the body bosses of the control valve or on the
pipeline if located within three pipe diameters of the control valve. Flow Module power shall be 24VDC not to exceed 150 mA current
draw. The flow module shall output a 4-20mA flow signal. All power to operate the foregoing equipment shall be supplied by others.
The Valve Flow Measurement System shall be similar in all respects to the model 133VF. Please see back page for additional order-
ing information and model number detail to insert after the KVF suffix.
RTU
Not Supplied by
CLA-VAL
Power
Supply
other wires not used