Specification

ES-AS/AST 0714 © Watts Regulator Company, 2007
USA: 815 Chestnut St., No. Andover, MA 01845-6098; www.watts.com
Canada: 5435 North Service Rd., Burlington, ONT. L7L 5H7; www.wattscanada.ca
Water Safety & Flow Control Products
1. AS or AS-T Air Separator
2. 9D Backflow Preventer
3. BD,SW,SS Boiler Drain Valves
4. 1156F-A or 1156F, B1156F,
N256, 1450F, T145B Boiler
Fill Valves 4a 911S Combination
S1156F Fill Valve and
9D Backflow Preventer
5. CV/CVY Bronze Check Valve
6. ET/ETX Expansion Tank
7. 2000, 2000S Flow Checks
8. P3 Flow Control Valve
9. GVS/GV Gate or GLV Globe Valves
10. 1170, 70A, N170-M2 Mixing Valves
11. RPV or PB56 Purge Valves
12. 3L, 53L Pressure Relief Valves
13. 374A, 174A, 740 Hot Water Boiler
Safety Relief Valves
14. T&P Test Plug
15. B-6000 Ball Valve
16. FV-4M1 Float Vent Valve
17. DuoVent Automatic Float Vent Valve
18. U5B, 25AUB Water Pressure
Reducing Valves
19. SCV
1
⁄8" or
1
⁄4" Service Check Valves
20. SCV
1
⁄2" Service Check Valve
21. DPTG Temperature/Pressure Gauge
Watts Specialty Items for Hydronic Heating Systems
2
or
3
4
4
2
4a
5
6
6
6
7
7
8
9
10
11
21
12
13
14
15
15
16
17
18
19
20
1 AS
1 AS-T
Alternate Fill Valve Piping
MODEL SIZE (DN) DIMENSIONS WEIGHTS
ABCDD1E
in. mm in. mm in. mm in. mm in. mm in. mm in. mm lbs. kg
AS-M1 1 25 6
1
⁄4 159 4 102 2
3
⁄4 70
1
⁄8 3– –
1
⁄2 13 4.5 2.0
AS-T-M1 1 25 6
1
⁄4 159 4 102 2
3
⁄4 70
1
⁄8 3
1
⁄2 13
1
⁄2 13 4.5 2.0
AS-M1 1
1
⁄4 32 6
1
⁄4 159 4 102 2
3
⁄4 70
1
⁄8 3– –
1
⁄2 13 4.5 2.0
AS-T-M1 1
1
⁄4 32 6
1
⁄4 159 4 102 2
3
⁄4 70
1
⁄8 3
1
⁄2 13
1
⁄2 13 4.5 2.0
AS-M1 1
1
⁄2 40 8 203 5
5
⁄16 135 3
5
⁄8 92
1
⁄8 31 25
1
⁄2 13 7.4 3.4
AS-M1 2 50 8 203 5
5
⁄16 135 3
5
⁄8 92
1
⁄8 31 25
1
⁄2 13 7.4 3.4
AS-M1 2
1
⁄2 65 10
5
⁄16 262 7
1
⁄4 184 5 127
1
⁄8 31 25
1
⁄2 13 15.0 6.8
AS-M1 3 80 10
5
⁄16 262 7
1
⁄4 184 5 127
1
⁄8 31 25
1
⁄2 13 15.0 6.8
A
AS
AS-T
C
B
D
D1
E
B
E
C
A
Dimensions