Pressure — temperature, Typical mounting, Dimensions - weights – Watts AS-B User Manual
Page 2: Laminar flow
Pressure — Temperature
Maximum Working Pressure: 125psi (862 kPa)
Maximum Operating Temperature: 275°F (135°C)
Typical Mounting
A
C
D**
B
Table 1
Pipe length to achieve laminar flow
SIZE (DN)
INLET
OUTLET
in
mm
in
mm
in
mm
3
/
4
”
20
13
1
/
2
343
4
1
/
2
114
1”
25
18
457
6
152
1
1
⁄
4
”
32
22
1
/
2
572
7
1
/
2
191
MODEL
SIZE (DN)
DIMENSIONS
WEIGHT
A
B
C
D**
in.
mm
in.
mm
in.
mm
in.
mm
in.
mm
lbs.
kgs.
*AS-B-S
3
/
4
”
20
5
127
3
7
/
16
87
2
5
/
16
59
3
5
/
16
85
1.7
.77
*AS-B-S
1”
25
6
1
⁄
2
165
4
5
⁄
16
110
3
76
3
5
/
16
85
3.4
1.6
*AS-B-S
1
1
⁄
4
”
32
6
1
⁄
2
165
4
5
⁄
16
110
3
76
3
5
/
16
85
3.4
1.6
*Supplied with one
1
⁄
2
” brass pipe plug and
1
⁄
2
” FV4-M1 Float Vent.
**Dimension for removal of air vent.
Dimensions - Weights
AS-B-S (Sweat)
Watts
Model
1
/
2
” FV-4M1
Watts
Model SCV*
Watts
Model ET
Expansion Tank*
Watts
Model SCV*
Water feed piping from
Watts Model SB1156
or B911S
Laminar Flow
For most systems the AS-B will provide superior air separation with
minimal inlet/outlet piping length, optimum operation is achieved
with laminar flow, see Table 1 below.
Note:
Supplied with Watts Model
1
⁄
2
” (15mm) FV-4M1 and one
1
⁄
2
”
(15mm) brass pipe plug.
*Model SCV service check valves and Watts Model ET expansion
tank are not supplied with the AS-B.
ES-AS-B 1044
© 2010 Watts
USA: No. Andover, MA • Tel. (978) 688-1811 • Fax: (978) 794-1848 • www.watts.com
Canada: Burlington, ONT. • Tel. (905) 332-4090 • Fax: (905) 332-7068 • www.wattscanada.ca
A Watts Water Technologies Company