User guide

Standard Screens
SIZE OPENINGS STANDARD SCREENS
in. mm in. mm
1
⁄2 - 2 15-50 0.032 0.813
1
⁄32" 304SS perf.
2
1
⁄2 - 3 65-80 0.045 1.143
3
⁄64" 304SS perf.
Performance Data
Table shows flow rates (gpm-water) at various pressure
drops (psi) for standard screens.
Flow-coefficient
The flow coefficient (C
v
) is the number of gallons per minute
of water flowing through a given size restriction at a pressure
drop of one psi. To obtain the C
v
factor for a given size
strainer, read capacity at intersection with the one (1) psi
pressure drop.
Conversions: For gpm to lpm, multiply by 3.8. For psi
to bars, multiply by .069
in. mm
3 80
2
1
⁄2 65
2 50
1
1
⁄2 40
1
1
⁄4 32
1 25
3
⁄4 20
1
⁄2 15
Strainer Size
gpm lpm
500 1900
100 380
10 38
1 3.8
.5 1.9
0.1 1 10
Flow (water) - gpm
Pressure Drop - psig
A
C
NPT
B
Inlet
Cap
NPT/SW
Dimensions — Weights
SIZE DIMENSIONS WEIGHTS
A B C (NPT)
in. mm in. mm in. mm in. mm lbs. kgs.
1
⁄2 15 2
5
⁄16 59 1
9
⁄16 40
3
⁄8 10 0.5 .2
3
⁄4 20 3
1
⁄8 79 2
1
⁄8 54
3
⁄8 10 0.8 .3
1 25 3
5
⁄16 84 2
5
⁄8 67
1
⁄2 15 1.5 .6
1
1
⁄4 32 4
1
⁄8 105 3 76
1
⁄2 15 2.0 .9
1
1
⁄2 40 4
11
⁄16 119 3
3
⁄16 81
1
⁄2 15 2.8 1.2
2 50 5
7
⁄16 138 3
13
⁄16 97
1
⁄2 15 4.3 2.9
2
1
⁄2 65 7
7
⁄8 200 5
5
⁄16 135 1
1
⁄4 32 13.0 5.8
3 80 8
7
⁄8 225 5
15
⁄16 151 1
1
⁄4 32 18.0 8.1
Dimensions shown are subject to change. Contact Watts for exact dimensions when required.
ES-87SI 0933 © 2009 Watts
USA: 815 Chestnut St., No. Andover, MA 01845-6098; www.watts.com
Canada: 5435 North Service Rd., Burlington, ONT. L7L 5H7; www.wattscanada.ca
A Watts Water Technologies Company