Specification

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)
Options
Add Suffix
-“ “ 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
-DU-PEX Double Union - PEX union inlet and outlet
-DU-CPVC Double Union - CPVC union inlet and outlet
-G Gauge tapping,
1
8" (3mm)
-LP Low pressure range 10-35psi (69 - 241 kPa)
-DU-XL
3
4" & 1" Only - Drop-in replacement for dual union
70XL Pressure Reducing Valve
**** Viega ProPress
®
connections are optional factory installed
fittings on each end of the approved/certified assembly.
Dimensions – Weights
Capacity
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
FSWEAT
ESWEAT
EPEX
FPEX
FNPT
ENPT
C
D
G
A + E
A
FEMALE NPT THREAD
BOTH ENDS OF BODY
A + E + E
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.
SIZE DIMENSIONS WEIGHT
A C D ENPT ESWEAT EPEX ECPVC EQC FNPT FSWEAT FPEX FCPVC FQC G
in. 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 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 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 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
-DU-XL
3
4 4
1
8 105 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 4 102 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
Consult factory for dimensions with press connections.
FCPVC
ECPVC
FQC
EQC
ES-LFN55B 2050 © 2020 Watts
USA: T: (978) 689-6066 • F: (978) 975-8350 • Watts.com
Canada: T: (905) 332-4090 • F: (905) 332-7068 • Watts.ca
Latin America: T: (52) 81-1001-8600 • F: (52) 81-8000-7091 • Watts.com
Standards
Meets requirements of ASSE Standard 1003; (ANSI A112.26.2)
and CSA Standard B356. Certified by NSF to ANSI/NSF
Standard 61-G. Listed by IAPMO.