Series 152a adjusting spring range chart, Capacity, Dimensions — weights – Watts 152A User Manual
Page 2

ES-152A 0403
© Watts Regulator Co., 1996
Printed in U.S.A.
USA: 815 Chestnut St., No. Andover, MA 01845-6098; www.wattsreg.com
Canada: 5435 North Service Rd., Burlington, ONT. L7L 5H7; www.wattscanada.ca
A
D
C
Flow
Flow
Flow
Pressure Drop
Pressure Drop
Pressure Drop
Series 152A
Adjusting Spring Range Chart
SIZE
*ADJUSTABLE RANGES
SPRING AND MODEL NO.
in.
mm
psi
bars
1
⁄
2
15
3 – 15
.21 – 1.05
145
1
⁄
2
15
10 – 50
.70 – 3.51
146
1
⁄
2
15
30 – 140
2.11 – 9.84
141
3
⁄
4
20
3 – 15
.21 – 1.05
145
3
⁄
4
20
10 – 50
.70 – 3.51
146
3
⁄
4
20
30 – 140
2.11 – 9.84
141
1
25
3 – 15
.21 – 1.05
146
1
25
10 – 30
.70 – 2.11
128
1
25
30 – 140
2.11 – 9.84
142
1
1
⁄
4
32
3 – 15
.21 – 1.05
146
1
1
⁄
4
32
10 – 30
.70 – 2.11
128
1
1
⁄
4
32
30 – 140
2.11 – 9.84
142
1
1
⁄
2
40
5 – 40
.35 – 2.81
276
1
1
⁄
2
40
30 – 100
2.11 – 7.03
299
2
50
5 – 40
.35 – 2.81
276
2
50
30 – 100
2.11 – 7.03
299
*The minimum reduced pressure ranges shown are recommended
only when very sensitive regulation service is needed for specific
requirements. However, all valves may be adjusted below the working
range minimums shown for lower regulation or complete shut off.
SIZE (DN)
DIMENSIONS
WEIGHT
A
C
D
in.
mm
in.
mm
in.
mm
in.
mm
lbs.
kg.
1
⁄
2
15
6
152
7
178
1
15
⁄
16
49
11
4.99
3
⁄
4
20
6
152
7
178
1
15
⁄
16
49
11
4.99
1
25
7
1
⁄
2
191
7
1
⁄
2
191
2
3
⁄
16
56
20
9.07
1
1
⁄
4
32
7
1
⁄
2
191
7
1
⁄
2
191
2
3
⁄
16
56
20
9.07
1
1
⁄
2
40
9
229
11
1
⁄
4
286
2
3
⁄
4
70
40
18.14
2
50
9
229
11
1
⁄
4
286
2
3
⁄
4
70
40
18.14
bars psi
1.4
20
1.0
15
0.7
10
0.3
5
0
0
2
4
6
8
10
12 gpm
7.6
15.2
22.8
30.4
38
45.6 lpm
bars psi
1.4
20
1.0
15
0.7
10
0.3
5
0
0
bars psi
1.7
25
1.4
20
1.0
15
0.7
10
0.3
5
0
0
5
10
15
20
25
30
35
40 gpm
19
38
57
76
95
114
133
152 lpm
5
10
15
20
25
30
35 gpm
19
38
57
76
95
114
133 lpm
Quick Reference Capacity Chart For Average Conditions
From
From
From
From
From
From
From
From
From
psi
bar
psi
bar
psi
bar
psi
bar
psi
bar
psi
bar
psi
bar
psi
bar
psi
bar
Initial Pressure
50
3.52
75
5.27
100
7.03
125
8.79
150 10.55 175 12.3 200 14.06
225 15.82 250 17.58
Up To
Up To
Up To
Up To
Up To
Up To
Up To
Up To
Up To
Reduced Pressure
20
1.41
35
2.46
50
3.52
60
4.22
70
4.92
80
5.62
90
6.33 100
7.03 125 8.79
in.
mm
*Maximum Capacities in Lbs. of Steam Per Hour
152A
1
⁄
2
"
15
80
111
143
175
205
237
270
299
332
152A
3
⁄
4
"
20
285
394
506
620
726
841
956
1060
1178
152A
1"
25
402
557
715
875
1025
1186
1349
1497
1663
152A
1
1
⁄
4
"
32
442
613
786
962
1127
1305
1484
1646
1830
152A
1
1
⁄
2
"
40
665
870
1120
1355
1600
1950
2230
2460
2725
152A
2"
50
765
1000
1285
1490
1840
2242
2564
2829
3134
*1 Lb. Steam Equals 970 BTU Per Hour
Capacity
152A Size
1
⁄
2
" (15mm)
152A Size
3
⁄
4
" (20mm)
152A Size 1" (25mm)
Range 30 - 140
Range 10 - 50
Range 3 - 15
Range 30 - 140
Range 10 - 50
Range 3 - 15
Range 30 - 140
Range 10 - 50
Range 3 - 15
Dimensions — Weights