Watts M1110-14 User Manual
Mustang series
Schematics
• Opens when oat reaches low level stop
• Closes when oat reaches high level stop
• Low and High Level stop collars are adjustable
ON-OFF FLOAT CONTROL VALVE
(4” and Smaller)
02/09
M110-14 (Globe)
M1110-14 (Angle)
Standard Components
1 – Main Valve (Single Chamber)
2 – On-Off Float Control
3A – High Level Adjustment Stop
3B – Low Level Adjustment Stop
Options & Accessories
○ X – Isolation Cocks
○ FC – Flo-Clean Strainer
○ Y – Y-Strainer (Replaces Flo-Clean)
○ ACS – Adjustable Closing Speed
(Replaces Fixed Orice)
○ AOS – Adjustable Opening Speed
○ P – Position Indicator
○ L – Limit Switch
(2)
(1)
(3)
(3)
(1)
Standard 3” & Smaller
(2)
Standard 4” & Larger
(3)
Optional All Sizes
(3)
(2)
(3)
X
Y/FC
P/L
X
1
FLOW
CLOSES VALVE
OPENS VALVE
2
3A
3B
Operations
The On-Off Float Control Valve is designed to open fully or close drip-tight as commanded by the Float
Control Pilot. The Float Pilot may be either valve or remote mounted. The valve closes drip tight when water
level reaches the adjustable high-level setpoint, and opens fully when water level is below the adjustable
low-level setpoint, allowing a calculated “draw-down” of water level to increase tank circulation. The On-Off
Float Pilot commands the routing of uid and pressure into and out of the cover chamber of the main valve.
When water level reaches the adjustable high-level setpoint, the Float Pilot connects the cover chamber
of the valve to upstream pressure, closing the valve drip tight. The valve remains closed as water level
decreases. When water level reaches the adjustable low-level setpoint, the Float Pilot connects the cover
chamber of the valve to atmosphere (wet drain), opening the valve fully. High and low levels are separately
adjustable by positioning stop collars on the oat rod(s) at desired opening and closing setpoints.
If desired, the on-off action of the valve can be “reversed” by modifying the hydraulic connections of the OnOff Float Pilot.
12541 Gulf Freeway • Houston, Texas 77034 • (Ph) 713.943.0688 • (Fx) 713.944.9445 • www.watts.com
Mustang series
M110-14 (Globe)
M1110-14 (Angle)
Materials
Body & Cover: Ductile Iron ASTM A536
Coating: NSF Listed Fusion Bonded
Epoxy Lined and Coated
Trim: 316 Stainless Steel
Elastomers: Buna-N (standard)
EPDM
Viton
Stem, Nut & Stainless Steel
Spring:
Operating Pressure
Threaded = 400 psi
150 Flanged = 250 psi
300 Flanged = 400 psi
Operating Temperature
Buna-N: 160°F Maximum
EPDM: 300°F Maximum
Viton: 250°F Maximum
Globe
L
D
A
B
C
K
K
Pilot System
Float Control
Brass (Standard)
Angle
K
H
I J
E
F
G
Tubing & Fittings
Copper / Brass (Standard)
Stainless Steel (Optional)
Float Ball
Polyethylene (6” dia.)
Float Rods
(2) 12” Rods (Standard)
Dimensions
A B C D E F G H I J K L
VALVE
GLOBE
SIZE
1-1/4 7-1/4 - - 5-1/2 3-1/4 - - 1-7/8 - - 3/8 1/4 20
1-1/2 7-1/4 8-1/2 9 5-1/2 3-1/4 4 4-1/4 1-7/8 4 4-1/4 3/8 1/4 25
2-1/2 11 11 11-5/8 7-1/2 5-1/2 5-1/2 5-7/8 4 4 4-5/16 1/2 1/2 65
THRD.
2 9-3/8 9-3/8 10 6-1/2 4-3/4 4-3/4 5 3-1/4 3-1/4 3-1/2 3/8 1/2 40
3 12-1/2 12 13-1/4 8-1/4 6-1/4 6 6-3/8 4-1/2 4 4-3/8 1/2 1/2 95
4 - 15 15-5/8 10-5/8 - 7-1/2 7-7/8 - 5 5-5/16 3/4 3/4 190
6 - 20 21 13-3/8 - 10 10-1/2 - 6z 6-1/2 3/4 3/4 320
8 - 25-3/8 26-3/8 16 - 12-3/4 13-1/4 - 8 8-1/2 1 1 650
10 - 29-3/4 31-1/8 17-1/8 - 14-7/8 15-9/16 - 8-5/8 9-5/16 1 1 940
GLOBE
150#
GLOBE
300#
COVER TO
CENTER
ANGLE
THRD.
ANGLE
150#
ANGLE
300#
ANGLE
THRD.
ANGLE
150#
ANGLE
300#
PORT
For larger sizes consult factory
SIZE
PORT
SIZE
SHIPPING
WEIGHTS*
Valve Cover Chamber Capacity
Valve Size (in) 1-1/4 1-1/2 2 2-1/2 3 4 6 8 10
.oz. 4 4 4 10 10 22 70
U.S. Gal - - - - - - -
- -
1-1/4 2-1/2
Valve Travel
Valve Size (in) 1-1/4 1-1/2 2 2-1/2 3 4 6 8 10
Travel (in) 3/8 3/8 1/2 5/8 3/4 1 1-1/2 2 2-1/2
12541 Gulf Freeway • Houston, Texas 77034 • (Ph) 713.943.0688 • (Fx) 713.944.9445 • www.watts.com
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