Watts S400 / S1400 User Manual
Stainless steel series basic valves, Operating pressure, Operating temperature
Stainless Steel Series Basic Valves
Job Name –––––––––––––––––––––––––––––––––––––––––––
Contractor ––––––––––––––––––––––––––––––––––––––––––––
Job Location –––––––––––––––––––––––––––––––––––––––––
Approval –––––––––––––––––––––––––––––––––––––––––––––
Engineer –––––––––––––––––––––––––––––––––––––––––––––
Contractor’s P.O. No. ––––––––––––––––––––––––––––––––––
Approval –––––––––––––––––––––––––––––––––––––––––––––
Representative ––––––––––––––––––––––––––––––––––––––––
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.
ES-ACV-S400-S1400
S400 / S1400
Full Port Stainless Steel
Single Chamber Basic Valve with
Mechanical Check Feature
The Watts ACV Models S400 and S1400 are full port, single
chamber basic valves that incorporate a two-piece telescoping
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 lower portion 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.
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.
Model S400: Globe Pattern Single Chamber Basic Valve with
Mechanical Check Feature
Model S1400: Angle Pattern Single Chamber Basic Valve with
Mechanical Check Feature
Dimensions
S400 (Globe)
S1400 (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
Shipping
Weights*
A
B
C
D
E
F
G
H
I
in.
mm
in.
mm
in.
mm
in.
mm
in.
mm
in.
mm
in.
mm
in.
mm
in.
mm
in.
mm
lbs.
kgs.
4
100
15
381
15
5
⁄
8
397
10
5
⁄
8
270
7
1
⁄
2
191
7
7
⁄
8
200
5
127
5
5
⁄
16
135
1
⁄
2
13
3
⁄
4
19
77
35
6
150
20
508
21
533
13
3
⁄
8
340
10
254
10
1
⁄
2
267
6
152
6
1
⁄
2
165
1
⁄
2
13
3
⁄
4
19
168
76
8
200
25
3
⁄
8
645
26
3
⁄
8
670
16
406
12
3
⁄
4
324
13
1
⁄
4
337
8
203
8
1
⁄
2
216
1
25
1
25
225
102
10
250
29
3
⁄
4
756
31
1
⁄
8
791
17
1
⁄
8
435
14
7
⁄
8
378
15
9
⁄
16
395
8
5
⁄
8
219
9
5
⁄
16
237
1
25
1
1
⁄
4
32
376
171
12
300
34
864
35
1
⁄
2
902
20
7
⁄
8
530
17
432
17
3
⁄
4
451
13
3
⁄
4
349
14
1
⁄
2
368
1
25
1
1
⁄
4
32
450
204
16
400
41
3
⁄
8
1051
43
1
⁄
2
1105
25
635
20
13
⁄
16
529
21
5
⁄
8
549
15
11
⁄
16
398
16
1
⁄
2
419
1
25
1
1
⁄
2
38
850
386
*Estimated in lbs.
C
I
H
H
A
B
D
E
F G