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Materials
Body: Lead Free* cast copper silicon alloy
Seat: Thermoplastic
Cage:  Thermoplastic
Integral Strainer:  Stainless steel
Diaphragm:  Reinforced EPDM
Valve Disc:  Elastomer
Pressure – Temperature
Temperature Range: 33˚F – 180˚F (0.5˚C – 82˚C)
Maximum Working Pressure: 400psi (27.6 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) and
CSA Standard B356. Certified by NSF to ANSI/NSF Standard 61 Annex G. 
Listed by IAPMO and City of Los Angeles.
Options
Add Suffix
G  Gauge tapping
GG  Gauge tapping and 160psi (11.0 bar) gauge
Dimensions – Weights
Capacity
FSWEAT
ESWEAT
FCPVC
EPEX
FPEX
ECPVC
ABOVE VALVE SHOWN WITH SINGLE NPT UNION CONNECTION ON INLET
VALVES MAY BE ORDERED WITH 0,1,OR 2 UNION CONNECTIONS USING ANY
COMBINATION OF NPT, SOLDER, PEX OR CPVC CONNECTIONS REQUIRED
“F” DIMENSIONS ARE APPROXIMATE ENGAGEMENT LENGTHS.
A + E + E
C
D
G
A + E
A
FEMALE NPT THREAD
BOTH ENDS OF BODY
FNPT
ENPT
EQC
FQC
SIzE (DN) DIMENSIONS WEIGHT
A  C  D 
ENPT
ESWEAT
EPEX
ECPVC  EQC
FNPT
FSWEAT
FPEX
FCPVC  FQC  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 in. mm in. mm in. mm lbs. kgs.
1
2 15
3
7
16
88 4
9
16 116 1
11
16 43
5
8
16
5
8
15
13
16
21
9
16
15
1
7
16 36
1
2
13
1
2
13
5
8
16
1
2 13 1
1
2 38 2
1
4 57 2
.
91
3
4 20
3
7
16
88 4
9
16 116 1
11
16 43
5
8
16
7
8
21
15
16
24
13
16
21
1
9
16 40
9
16
14
3
4
19
5
8
16
3
4 18 1
11
16 42 2
1
4 57 2
.
91
1 25
4
1
8
105 4
9
16 116 1
11
16 43
3
4
20
1
26
1
1
8
29
1
1
16
26
1
11
16 43
11
16
17
15
16
23
13
16
21
15
16 23 1
3
4 45 2
1
4 57 3 1.36
kPa psi
0 0
34.5 5
68.9 10
103.4 15
137.8 20
172.3 25
0 10 20 30 40 gpm
0 37.3 75.7 113.6 151.4 lpm
Pressure Drop
Flow
ES-LFN45B 1323 © 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
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