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ES-A-ACV-LF984GD 2115
© 2021 Watts
LEAD FREE
*
ACV Standard Components - Series LF984GD
Specifications
Body Material:
Lead Free Copper Silicon Alloy
CF8M (316) Stainless Steel (Optional)
Seat:
316
Stainless
Steel
Elastomers:
Buna-N
(standard)
Viton™
(optional)
EPDM
(optional)
Inlet Pressure Rating:
400psi (27.6 bar) maximum
LFCP14-1
* The wetted surface of this product contacted by consumable water
contains less than 0.25% of lead by weight.
Viton™ is a trademark of The Chemours Company FC, LLC
Model LFCP14-1
Rate-of-Flow Pilot
Size:
3/8
" NPT
The Model LFCP14-1 is a direct acting, diaphragm actuated Pilot
that senses and responds to changes in a differential pressure
signal. The differential pressure signal is usually created by an
orifice plate located inline either upstream or downstream of the
Main Valve. The Pilot has two sensing chambers, one above and
one below the diaphragm. The "low" pressure signal is sensed
above the diaphragm, and the "high" pressure signal is sensed
below the diaphragm.
An increase in flow rate causes the differential pressure across
the orifice plate to increase. The Pilot modulates toward a closed
position when the differential pressure signal increases above the
control setpoint, causing the Main Valve to modulate toward a
closed position, decreasing flow rate.
A decrease in flow rate causes the differential pressure across
the orifice plate to decrease. The Pilot modulates toward an open
position when the differential pressure signal decreases below the
control setpoint, causing the Main Valve to modulate toward an
open position, increasing flow rate. Turning the adjustment screw
clockwise raises the control setpoint, increasing flow rate. Turning
the adjustment screw counterclockwise lowers the control set-
point, decreasing flow rate.
The LFCP14-1 is equipped with one
3/8
" NPT inlet and two outlet
ports for ease of installation, and two
1/8
" NPT sensing ports. The
1/8
" sensing port above the diaphragm is used to monitor the "low
pressure" differential signal, and the sensing port below the dia-
phragm is used to monitor the "high pressure" differential signal.
