Dimensions – weights, Capacity approvals, Typical installation – hydrant meter backflow – Watts 994HMB User Manual
Page 2: Pr essur e loss, Overall lay length: 37
Dimensions – Weights
• Overall lay length: 37
1
⁄
2
" (953mm)
• Weight: 66 lbs. (30 kgs)
• Height from top of open gate valve to bottom
of relief valve: 19" (483mm)
• Width: 10" (254mm)
Capacity
Approvals
Model 994HMB Hydrant Meter Backflow Preventer meets the
design requirements of most national standards. Due to the
portability of the unit, there are no national approvals available.
Contact the factory for specific approvals on the reduced pres-
sure backflow preventer.
ES-994HMB 0708
© Watts Regulator Company, 2007
8
1
⁄
4
"
9
3
⁄
16
"
37
1
⁄
2
"
MODEL
WEIGHT
lbs.
kgs.
994HMB-GPM
66
30
994HMB-CFM
66
30
Pr
essur
e Loss
kPa psi
345 50
276 40
207 30
138 20
69 10
0
0
0
100
200
300
400
500 gpm
0
380
760
1140
1520
1900 lpm
2
4
6
200
400
600
800
8
20
40
60
80
0
100
1000
10
Over
Register
Under
Register
Accuracy P
e
r
Cent
15
10
5
0
5
10
-
+
USA: 815 Chestnut St., No. Andover, MA 01845-6098; www.watts.com
Canada: 5435 North Service Rd., Burlington, ONT. L7L 5H7; www.wattscanada.ca
B a c k f l o w P r e v e n t i o n P r o d u c t s
Typical Installation – Hydrant Meter Backflow