Watts S6500 / S61500 User Manual
Stainless steel series basic valves, Operating pressure, Operating temperature
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Viton
®
is a registered trademark of DuPont Dow Elastomers.
Watts product specifications in U.S. customary units and metric are approximate and are provided for reference only. For precise measurements,
please contact Watts Technical Service. Watts reserves the right to change or modify product design, construction, specifications, or materials with-
out prior notice and without incurring any obligation to make such changes and modifications on Watts products previously or subsequently sold.
Stainless Steel Series Basic Valves
ES-ACV-S6500-S61500
S6500 / S61500
Reduced Port Stainless Steel
Dual Chamber Basic Valve
The Watts ACV Models S6500 and S61500 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 or close as commanded by
the pilot control system.
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.
The Stainless Steel design offers superior corrosion resistance,
as well as a lightweight alternative to conventional heavy iron
valves. Stainless Steel construction reduces corrosion, reducing
diaphragm wear and the frequency and labor costs associated
with traditional maintenance repairs.
Dimensions
S6500 (Globe)
S61500 (Angle)
Standard Materials
Body, Cover &
304L Stainless Steel (standard)
Flanges:
316L Stainless Steel (optional)
Trim:
316 Stainless Steel
Elastomers:
Buna-N (standard)
EPDM
Viton
®
Stem, Nut & Spring: Stainless Steel
Operating Pressure
150 Flanged = 250psi (17.2 bar)
Operating Temperature
Buna-N: 160°F (71°C) Maximum
EPDM: 300°F (140°F) Maximum
Viton
®
: 250°F (121°C) Maximum
Valve Size
Globe 150#
Globe 300# Cover To Center Angle 150#
Angle 300#
Angle 150#
Angle 300#
Port Size
Port Size
Port Size
Shipping
Weights*
A
B
C
D
E
F
G
H
I
J
in.
mm
in.
mm
in.
mm
in.
mm
in.
mm
in.
mm
in.
mm
in.
mm
in.
mm
in.
mm
in.
mm
lbs.
kgs.
6
150
17
3
⁄
4
451
18
5
⁄
8
473
15
1
⁄
4
387
8
7
⁄
8
225
9
3
⁄
8
238
6
3
⁄
4
171
7
1
⁄
4
184
1
⁄
2
13
3
⁄
4
19
1
⁄
2
13
130
59
8
200
21
3
⁄
8
543
22
3
⁄
8
568
20
1
⁄
8
511
10
11
⁄
16
271
11
3
⁄
16
284
7
1
⁄
4
184
7
3
⁄
4
197
1
⁄
2
13
3
⁄
4
19
1
⁄
2
13
210
95
10
250
26
660
27
3
⁄
8
695
23
11
⁄
16
602
1
25
1
25
1
⁄
2
13
363
165
12
300
30
762
31
1
⁄
2
800
26
1
⁄
4
667
1
25
1
1
⁄
4
32
1
⁄
2
13
528
240
16
400
35
889
36
5
⁄
8
930
34
1
⁄
8
867
1
25
1
1
⁄
2
38
1
25
826
375
18
450
48
1219
49
5
⁄
8
1260
41
1041
1
25
1
1
⁄
2
38
1
25
1365
619
20
500
48
1219
49
5
⁄
8
1260
41
1041
1
25
1
1
⁄
2
38
1
25
1390
630
24
600
48
1219
49
3
⁄
4
1260
41
1041
1
25
1
1
⁄
2
38
1
25
1485
674
*Estimated in lbs.
Model S6500: Globe Pattern Dual Chamber Basic Valve
Model S61500: Angle Pattern Dual Chamber Basic Valve
A
B
D
E
F G
I
H
C
H
J