3
ES-A-ACV-LF980GD-16 2115
© 2021 Watts
Threaded = 400psi (27.6 bar)
150# Flanged = 250psi (17.2 bar)
300# Flanged = 400psi (27.6 bar)
Grooved End = 400psi (27.6 bar)
Operating Pressure
M Series Basic Valves
Pump Control Valve with Mechanical Check Feature
Full Port Ductile Iron Dual Chamber Basic Valve with Mechanical Check Feature
1
X
3
6
3
2
X
X
Y/FC
Y/FC
4(L)
CLOSES VALVE
OPENS VALVE
FLOW
5
X
Globe Flanged
Angle Flanged
Globe Threaded
Globe Grooved End
Angle Threaded
Angle Grooved End
Basic Valve Body Options
Standard Materials
Body and Cover:
Ductile Iron ASTM A536
Coating:
NSF Listed Fusion Bonded Epoxy
Lined
and
Coated
Trim:
316 Stainless Steel
Elastomers:
Buna-N (standard)
EPDM
(optional)
Viton™
(optional)
Nut, Spring and Stem:
Stainless Steel
Anti-Scale (Optional):
Xylan Coated Stem and Seat
Viton™ is a trademark of The Chemours Company FC, LLC
ACV Schematic - Series LF980GD-16
This Ames ACV is a full port, dual chamber basic valve that incor-
porates a two-piece telescoping disc and diaphragm assembly. This
assembly is the only moving part within the valve, allowing it to open
or close as commanded by the pilot control system. The lower por-
tion of this two-piece assembly is a mechanical check feature, which
acts independent of diaphragm position or pilot control system, and
provides immediate check action when flow ceases.
When pressure is applied to the upper diaphragm chamber and
released from the lower diaphragm chamber, the valve travels to a
closed position. When pressure is applied to the lower diaphragm-
chamber and released from the upper diaphragm chamber the valve
travels to a full open position.
Ames ACV Main Valves are Lead Free. The Ames ACV piloting sys-
tem contains Lead Free* components, ensuring all of our configura-
tions are Lead Free compliant.
Globe Pattern Dual Chamber Basic Valve with Mechanical Check
Feature (
900GD-16)
Angle Pattern Dual Chamber Basic Valve with Mechanical Check
Feature (
900AD-16)
Operating Temperature
Buna-N: 160°F (71°C) Maximum
EPDM: 300°F (140°C) Maximum
Viton™: 250°F (121°C) Maximum
Epoxy Coating**: 225°F (107°C) Maximum
** Valves can be provided without internal epoxy coating consult factory
