Materials, Pressure – temperature, Standards – Watts N223BS User Manual
Page 2: Options, Capacity, Dimensions — weights, Reduced pressure fall-off flow
Materials
Body:
Bronze
Seat:
Replaceable stainless steel alloy
Strainer Screen: Stainless steel (model N223S)
Diaphragm:
Reinforced Buna-N
Valve Disc:
EPDM
Pressure – Temperature
Temperature Range: 33°F – 160°F (0.5°C – 71°C)
Maximum Working Pressure: 300psi (20.7 bar)
Adjustable Reduced Pressure Range: 25 – 75psi (172 – 517 kPa)
Standard Reduced Pressure Setting: 50psi (345 kPa)
Standards
Both 2
1
⁄
2
" and 3" are listed to ASSE 1003 through IAPMO (UPC).
The 2
1
⁄
2
" is also listed to ASSE 1003 through ASSE.
Options
HP
High pressure range 75 – 125psi (172 – 517 kPa)
Capacity
A
N
L
C
D
Dimensions — Weights
2
1
⁄
2
"
3"
Reduced Pressure Fall-Off
Flow
kPa psi
345 50
276 40
207 30
138 20
121 17.5
103 15
86 12.5
69 10
52 7.5
34 5
17 2.5
0 0
40
80
120
160
200
240 320 400 480 560 640 720
gpm
152
304
456
608
760
912 1216 1520 1824 2128 2432
2736
lpm
SizE (DN)
DimENSiONS
WEighT
A (N223BS)
C
D
L
N (N223BS)
N223B
N223BS
in. mm
in. mm
in. mm in. mm in. mm in. mm lbs. kgs. lbs. kgs.
2
1
⁄
2
65 17 432 10
3
⁄
4
273 2
7
⁄
8
73 7
7
⁄
8
200 5 127 30 13.6 44 20.0
3 80 20
3
⁄
4
527 12
3
⁄
4
324 4
1
⁄
8
105 10
1
⁄
2
267 6
3
⁄
4
172 71 32.2 95 43.0
I.P. = 83 psi, R.P. = 50 psi Lockup
(65mm)
(80mm)
ES-N223B 1210
© 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