Materials, Pressure – temperature, Standards – Watts LFN45B-L User Manual
Page 2: Options, Dimensions – weights, Capacity, Flow pressure drop

Materials
Body:
Lead Free* cast copper silicon alloy
Seat:
Thermoplastic
Cage: Thermoplastic
Integral Strainer: Stainless steel
Diaphragm:
Reinforced EPDM
Valve Disc:
EPDM
Pressure – Temperature
Temperature Range: 33˚F – 180˚F (0.5˚C – 82˚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
Meets requirements of ASSE Standard 1003; (ANSI A112.26.2); CSA
Standard B356; and listed by IAPMO. City of Los Angeles.
Options
G
Gauge tapping
GG
Gauge tapping and 160psi (11.0 bar) gauge
Dimensions – Weights
SIzE (DN)
DImENSIoNS
wEIghT
A
T
A
s
A
N
B
T
B
s
B
N
C
D
E
T
E
S
G
in. mm in. mm in. mm in. mm in. mm in. mm in. mm in. mm in. mm in mm in mm in. mm lbs.
kgs.
1
1
⁄
4
32 8
3
⁄
8
213 7
15
⁄
16
201 5
13
⁄
16
148 4
3
⁄
8
111 4
1
⁄
8
105 3
1
⁄
16
78 8
7
⁄
8
225 1
7
⁄
16
36
11
⁄
16
17 1 25 3
1
⁄
4
82 6.5 2.9
1
1
⁄
2
40 8
3
⁄
8
213 8
3
⁄
16
207 5
13
⁄
16
148 4
9
⁄
16
115 4
7
⁄
16
112 3
1
⁄
4
83 8
7
⁄
8
225 1
5
⁄
8
41
11
⁄
16
17 1
1
⁄
8
28 3
1
⁄
4
82 8 3.6
2 50 9 228 9
1
⁄
4
235 6
3
⁄
8
162 5 126 5
1
⁄
16
129 3
11
⁄
16
93 8
7
⁄
8
225 1
7
⁄
8
47
11
⁄
16
17 1
3
⁄
8
34 3
11
⁄
16
93 9 4.1
E
T - NPT ENgAgEmENT FoR TIghT JoINT
E
S - FEmALE SwEAT SoCKET DEPTh
Capacity
g
A
T = NPT
A
S = sweat
C
max.
D
B
T = NPT
B
S = sweat
A
N - NoNE
B
N - NoNE
Capacity N45B
0
5
10
15
20
25
0
10
20
30
40
50
60
70
80
90
100
110
Flow
p
or
D
er
us
se
r
P
/N55B
2"
1
1
/
4
"
1
1
/
2
"
kPa psi
0 0
34
5
69 10
103
15
138
20
172
25
0 10 20 30 40 50 60 70 80 90 100
110
gpm
0 38 76 114 152 190 228 266 304 342 380 418 l
pm
Flow
Pressure Drop
(40mm)
(50mm)
(32mm)
ES-LFN45B-L 1323
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