Specification Sheet

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.
Options
-“ “ NPT threaded female inlet x NPT female outlet
-U NPT threaded union inlet x NPT female outlet
-U-S Solder union inlet x NPT female outlet
-w/press**** Press inlet x press outlet (non union)
-DU Double Union – NPT threaded union female inlet
and outlet
-DU-S Double Union – Solder union inlet and outlet
-G Gauge tapping,
1
⁄8"
**** Viega ProPress
®
connections are optional factory installed fittings on each end
of the approved/certified assembly.
Dimensions – Weights
SIZE DIMENSIONS WEIGHT
AT As AN BT Bs BN C D ET ES G
in. 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 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 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 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
Consult factory for dimensions with press connections.
ET - NPT ENGAGEMENT FOR TIGHT JOINT
ES - FEMALE SWEAT SOCKET DEPTH
Capacity
G
AT = NPT
AS = sweat
C
Max.
D
BT = NPT
BS = sweat
AN - NONE
BN - NONE
Capacity N45B
0
5
10
15
20
25
0102030405060708090100 110
Flow
p
o
rD erusserP
/N55B
2"
1¼"
1½"
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 lpm
Flow
Pressure Drop
ES-LFN45B-L 1640 © 2016 Watts
USA: T: [phone] • F: [phone] • Watts.com
Canada: T: [phone] • F: [phone] • Watts.ca
Latin America: T: (52) 81-1001-8600 • Watts.com