Watts LFN223BS - Manual (Page 2)

Models
2 1 ⁄
2
" LFN223M2-B NPT threaded female inlet x NPT threaded female outlet
3" LFN223M1-B NPT threaded female inlet x NPT threaded female outlet
2 1 ⁄
2
" LFN223M2-BS NPT threaded female inlet with strainer x NPT threaded female outlet
3" LFN223M1-BS NPT threaded female inlet with strainer x NPT threaded female outlet
For
1 ⁄
2
" – 2 1 ⁄
2
" threaded connections, refer to literature ES-LF223.
For 3" flanged connections, refer to literature ES-LF223F.
Materials
Body: Lead Free* cast copper silicon alloy
Seat: Replaceable stainless steel alloy
Strainer Screen: Stainless steel (model LFN223S)
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.
Both 2 1 ⁄
2
" and 3" are listed to NSF 61-G
Options
HP High pressure range 75 – 125psi (172 – 862 kPa)
2
1 ⁄
2
" HP, LP, G and GC options
3" HD option
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 WEIGHT
A (LFN223BS) C D L N (LFN223BS) LFN223B LFN223BS
in in. mm in. mm in. mm in. mm in. mm lbs. kgs. lbs. kgs.
2 1 ⁄
2
17 432 10 3 ⁄
4
273 2 7 ⁄
8
73 7 7 ⁄
8
200 5 127 30 13.6 44 20.0
3 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-LFN223B 1329 © 2013 Watts
USA: Tel: (978) 688-1811 • Fax: (978) 794-1848 • www.watts.com
Canada: Tel: (905) 332-4090 • Fax: (905) 332-7068 • www.watts.ca
A Watts Water Technologies Company
DIMENSIONS