Dimensions — weights, Installation, Capacities – Watts 188A User Manual
Page 2
Dimensions — Weights
0
30
60
90
120
150 170 gpm
0 114 228 342 456 570
646
lpm
3
/
4
” - 2” (20 - 50mm)**
A
C
D
Pressure Loss
Flow Rate
Installation
Atmospheric Vacuum Breaker must be installed 6" (152mm)
above the highest point of the downstream piping. There can be
no shutoff valves downstream of an AVB. The AVB should not be
subjected to continuous pressure for more than 12 hours per ASSE
Std. 1001.
size (DN)
DimeNsioNs
weight
A
C
D
in.
mm**
in.
mm
in.
mm
in.
mm
lbs.
kgs.
3
⁄
4
20
2
1
⁄
4
57
1
7
⁄
8
48
1
1
⁄
2
38
1.13
.51
1
25
2
7
⁄
8
73
2
1
⁄
8
54
1
11
⁄
16
43
1.75
.79
1
1
⁄
4
32
2
7
⁄
8
73
2
1
⁄
8
54
1
13
⁄
16
46
2.13
.96
1
1
⁄
2
40
3
5
⁄
8
92
2
7
⁄
16
62
2
3
⁄
16
56
3.63
1.64
2
50
4
1
⁄
8
105
2
7
⁄
8
73
2
1
⁄
2
64
5.25
2.38
Capacities
kPa psi
82 12
62 9
41 6
21 3
0 0
3
/
4
”
1”
1
1
/
4
”
1
1
/
2
”
2”
ES-188A 1223
© 2012 Watts
USA: Tel: (978) 688-1811 • Fax: (978) 794-1848 • www.watts.com
Canada: Tel: (905) 332-4090 • Fax: (905) 332-7068 • www.wattscanada.ca
A Watts Water Technologies Company
** Metric Dimensions are nominal pipe diameter. This product
is produced with NPT threaded end connections.