User Manual

Mustang Series
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C
F G
D
E
A
B
H
Standard 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 (optional)
Viton (optional)
Stem, Nut & Stainless Steel
Spring:
R
01/05
M6500 (Globe)
M61500 (Angle)
Globe
Angle
Dimensions
Description
The Watts ACV Models M6500 and M61500 are reduced port, dual chamber basic valves that incorporate a one-
piece disc and diaphragm assembly. This assembly is the only moving part within the valve allowing it to open,
close, or modulate as commanded by the pilot control system. The reduced port design offers improved low-flow
performance and cavitation resistance.
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. When pressure is balanced between the upper
and lower diaphragm chambers, the valve will hold an intermediate position until commanded to modulate open or
closed by the pilot control system.
Model M6500: Globe Pattern Dual Chamber Basic Valve
Model M61500: Angle Pattern Dual Chamber Basic Valve
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
Description
Operating Pressure
Operating Temperature
A B C D E F G H I J
VALVE
SIZE
GLOBE
150#
GLOBE
300#
COVER TO
CENTER
ANGLE
150#
ANGLE
300#
ANGLE
150#
ANGLE
300#
PORT
SIZE
PORT
SIZE
PORT
SIZE
SHIPPING
3 10-1/4 11 9-1/16 3/8 1/2 1/4 31
4 13-7/8 14-1/2 11-11/16 6-15/16 7-1/4 5-1/2 5-13/16 1/2 1/2 1/2 50
6 17-3/4 18-5/8 15-1/4 8-7/8 9-3/8 6-3/4 7-1/4 3/4 3/4 1/2 130
8 21-3/8 22-3/8 20-1/8 10-11/16 11-3/16 7-1/4 7-3/4 3/4 3/4 3/4 210
10 26 27-3/8 23-11/16 1 1 1 363
12 30 31-1/2 26-1/4 1 1 1 528
16 35 36-5/8 34-1/8 1 1-1/4 1 826
18 48 49-5/8 41 1 2 1 1365
20 48 49-5/8 41 1 2 1 1390
M6500 link
Standard Materials
8550 Hansen Road • Houston, Texas 77075 • (Ph) 713.943.0688 • (Fx) 713.944.9445 • www.wattsacv.com