Materials, Pressure – temperature, End connections – Watts LF008PCQT User Manual
Page 2: Capacity, Standards, Approvals, Dimensions — weights, Typical installation, Notice
Materials
Springs:
Stainless steel
Bonnet:
PPO
Vent Disc:
EPDM
Disc Holder: PPO
Check Disc: Silicone rubber
Body:
Lead Free* cast copper silicon alloy
Pressure – Temperature
Temperature Range: 33°F – 180°F (0.5°C – 83°C)
Maximum Working Pressure: 150psi (10.3 bar)
End Connections
Female NPT - Ball Valve shutoffs
Capacity
As compiled from documented Foundation for Cross-Connection
Control and Hydraulic Research at the University of Southern
California lab tests.
==
Typical maximum system flow rate (7.5 feet/sec.)
A strainer is recommended to be installed ahead of the backflow preventer to prevent the fouling of the check assembly
and resulting spillage from the valve during repressurization. Do not install in concealed locations or areas where water
leakage due to normal wear of the internal parts can cause damage.
Standards
Meets requirements of IAPMO.
Approvals
D
E
2"
B
kPa psi
69 10
55 8
41 6
28 4
14 2
0 0
0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 5.5
gpm
0 1.9 3.8 5.7 7.6 9.5 11.4 13.3 15.2
17.1 19 21
lpm
3
⁄
8
" (10mm)
∆P
FLOW
kPa psi
97 14
83 12
69 10
55 8
41 6
28 4
14 2
0 0
0 1 2 3 4 5 6 7 8 9
10
gpm
0 3.8 7.6 11.4 15.2 19 22.8 27 30 34 38
lpm
7.5
fps
2.3
mps
==
∆P
FLOW
3
⁄
4
" (20mm)
kPa psi
69 10
55 8
41 6
28 4
14 2
0 0
0 5 10 15 20 25 30
gpm
0 19 38 57 76 95
114
lpm
7.5
fps
2.3
mps
∆P
FLOW
0 5 10 15 20 25 30 35 40 45 50
gpm
0 19 38 57 76 95 114 135 152
171
190
lpm
7.5
fps
2.3
mps
kPa psi
69 10
55 8
41 6
28 4
14 2
0 0
1" (25mm)
∆P
FLOW
Dimensions — Weights
LF008PCQT
SizE (DN)
DimENSiONS
WEigHT
B D E
in. mm in. mm in. mm in. mm lbs. kgs.
3
⁄
8
10 5
1
⁄
2
140 3
15
⁄
16
100 3
1
⁄
8
79 1.6 .73
1
⁄
2
15 5
3
⁄
4
146 4
3
⁄
16
106 3
3
⁄
8
86 1.7 .77
3
⁄
4
20 7 178 4
5
⁄
8
117 4
1
⁄
2
114 3.8 1.72
1 25 7
1
⁄
2
191 5
1
⁄
8
130 4
7
⁄
8
124 4.8 2.18
1056
B64.1.2
3
⁄
4
" (20mm) Hose
Adapter with
strainer washer
Supply Hose
Shutoff
Test cock
Dispensing inducers
Solenoid Valves
LF008PCQT-S Watts P60-m1
Pressure Reducing Valve
Typical Installation
1" min.
(25mm)
ES-LF008PCQT 1318
© 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
==
==
1
⁄
2
" (15mm)
NOTICE