Materials, Pressure – temperature, Standards – Watts LF223S User Manual
Page 2: Options, Capacity, Dimensions — weights
Materials
Body:
1
⁄
2
" – 2" (15 – 50mm) Lead Free* Brass
2
1
⁄
2
" (65mm) Cast Iron
Spring cage:
Iron
Bottom plug:
Lead free brass
Bottom plug gasket: Buna-N
Seat:
Stainless steel
Seat gasket:
Buna-N
Adjusting screw: Steel
Locking nut:
Brass
Spring button:
Cast Iron
Spring:
Zinc-plated wire
O-Ring:
Buna-N
Diaphragm plate: Cast Iron
Diaphragm:
Reinforced Buna-N
Disc holder:
Lead free copper silicon alloy
Nameplate:
Aluminum
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
1
⁄
2
" – 2" (15 – 50mm) meets requirements of ASSE Standard 1003;
(ANSI A112.26); CSA Standard B356; Southern Standard Plumbing Code,
Military Standard MIL-V-18146B and listed by IAPMO.
Options
B
Builtin bypass feature
LP
Low pressure range 10-35psi (69 – 241 kPa)
HP
High pressure range, reduced range shown below:
Capacity
Series LF223 sizes
1
⁄
2
",
3
⁄
4
", 1" (15, 20, 25mm)
Series LF223 sizes 1
1
⁄
4
", 1
1
⁄
2
", 2", 2
1
⁄
2
" (32, 40, 50, 65mm)
Size (DN)
DimeNSioNS
WeigHt
A (LF223)
As (LF223S)
C
D
N (LF223S)
LF223
LF223S
in.
mm
in.
mm
in.
mm
in.
mm
in.
mm
in.
mm
lbs.
kgs.
lbs.
kgs.
1
⁄
2
15 4
1
⁄
4
108
9
229
6
1
⁄
4
159
2
50
2
1
⁄
2
64 4.5 2.0 6 2.7
3
⁄
4
20 4
1
⁄
4
108
9
229
6
1
⁄
4
159
2
50
2
1
⁄
2
64
5
2.3
6.5
2.9
1
25
4
3
⁄
4
121 10
15
⁄
16
262 6
1
⁄
2
165 2
1
⁄
8
54 2
15
⁄
16
75
7
3.2
9.5
4.3
1
1
⁄
4
32 5 127 11
15
⁄
16
287 6
3
⁄
4
172 2
3
⁄
4
70
3
76
9
4.1
12
5.4
1
1
⁄
2
40 6
3
⁄
4
171 14
3
⁄
4
375
97⁄8
251
2
3
⁄
4
70 3
7
⁄
16
87
19.5
8.8
23.5
10.7
2
50
8
203
16
3
⁄
4
425 10
3
⁄
4
273 3
3
⁄
8
86
4 102 30 13.6 37.5 17.0
2
1
⁄
2
65
9
229
20
1
⁄
8
511 10
3
⁄
4
273 3
3
⁄
8
86
5
127
32.5
14.8
59
26.8
ReDuceD PReSSuRe RANge - SuFFix HP
Size
Range
in.
mm
psi
bar
1
⁄
2
15
50-145
3.4-10.0
3
⁄
4
20
50-145
3.4-10.0
1
25
50-145
3.4-10.0
1
1
⁄
4
32
50-120
3.4-8.3
1
1
⁄
2
40
50-95
3.4-6.6
2
50
50-95
3.4-6.6
2
1
⁄
2
65
50-95
3.4-6.6
As
N
A
c
D
Dimensions — Weights
lpm gpm
304 80
266 70
227 60
190 50
151 40
114 30
76 20
38 10
0 0
0 5 10 15 20
psi
0
34
69
103
138
kPa
lpm gpm
950 250
760 200
570 150
379 100
190 50
0 0
0 5 10 15 20 25
30
psi
0
34
69
103
138
172
207
kPa
Flow
Flow
Pressure Drop
Pressure Drop
ES-LF223 1412
© 2014 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
223
0
10
20
30
40
50
60
70
80
0
5
10
15
20
PRESSURE FALL OFF - PSI
223
0
50
100
150
200
0
5
10
15
20
25
30
PRESSURE FALL OFF - PSI
1
⁄
2
"
3
⁄
4
"
1"
223
0
10
20
30
40
50
60
70
80
0
5
10
15
20
PRESSURE FALL OFF - PSI
223
0
50
100
150
200
0
5
10
15
20
25
30
PRESSURE FALL OFF - PSI
1
1
⁄
2
"
1
1
⁄
4
"
2"
2
1
⁄
2
"