The Flow Governor is a protective device, installed downstream of the Flow Meter, to limit the flow rate through the Flow Meter, to the maximum Meter flow rate capacity. This becomes essential when the pump capacity is greater than the capacity of the Flow Meter or when a common pump is used for more than one Flow Meter.Download Literature in pdf format.
DESIGN FEATURES
Low pressure drop.
Compact & rugged construction.
A sensitive pressure differential orifice design.
Adjustable flow rate.
PRINCIPLES OF OPERATION
The Flow Governor consists of a body having an orifice, a spring balanced piston & a butterfly control valve. Variation in liquid flow across the orifice creates a differential pressure which applies a downward or upward force on the piston. This in turn rotates the butterfly valve to restrict & maintain a constant rate of flow. The downward compression force on the piston is resisted by the spring tension, which is adjustable & enables accurate presetting of a constant flow rate.
APPLICATIONS
Single pump, multipoint gantry filling.
High flow regulation for Meter protection.
MATERIALS OF CONSTRUCTION
Body
For 80 mm & 100 mm size:
Cast Iron (standard).
Cast Steel ASTM A 216 WCB (optional).
For 150 mm size:
Carbon Steel Fabricated (standard).
Piston
Electroplated Carbon Steel.
Butterfly Valve
Aluminium Alloy LM 25.
Springs
Spring Steel.
Other Wetted Parts
Stainless Steel AISI 410.
Seals
Nitrile (standard).
Viton (optional).
SPECIFICATION
Type
Variable area orifice.
Sizes
80 mm
100 mm
150 mm
Setting Flow Ranges
1364 LPM for 80 mm (use with TL 03 / 04).
2046 LPM for 80 mm (use with TL 05 / 06).
2273 LPM for 100 mm (use with TL 07 / 08).
2955 LPM for 100 mm (use with TL 09 / 10).
2955 LPM for 150 mm (use with TL11 / 12).
(flow rate setting between +/- 20%)
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