Standard screens, Flow-coefficient, Dimensions — weights performance data – Watts 88S User Manual
Page 2

Standard Screens
Size
OpeNiNgS
StaNdard ScreeNS
in.
mm
in.
mm
1
/
4
- 2 8-50mm
0.062
1.57
1
⁄
16
" 304SS perf.
†Wire mesh liners are available to insert inside the standard
1
⁄
16
" perforated screen.
Flow-Coefficient:
The flow coefficient (Cv) 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 Cv factor for a given size strainer, read
the flow capacity curve at intersection with the one (1)
psi pressure drop.
To convert to atmospheres, multiply by .069.
To convert gpm to lpm, multiply by 3.8
For performance data on nonstandard screens and liners,
please send for F-C77.
in. mm
2 50
1
1
⁄
2
40
1
1
⁄
4
32
1 25
3
⁄
4
20
1
⁄
2
15
3
⁄
8
10
1
⁄
4
8
300
200
100
9
8
7
6
5
4
3
2
10
9
8
7
6
5
4
3
2
1
0.1 .2 .3 .4 .5 .6 .7 .8 .91 2 3 4 5 6 7 8 9 10
Liquid Flow (Water) - gpm
Strainer Size
pressure drop - psi
Flow/pressure drop chart
c
Npt
B
inlet
cap
Npt
a
Size
dimeNSiONS
WeightS
A
B
C (NPT)
Cv
in.
mm
in.
mm
in.
mm
in.
mm
lbs.
kgs.
Rating
1
⁄
4
8 3 76 2
1
⁄
4
57
1
⁄
4
8 1.3 .5
3
1
⁄
2
3
⁄
8
10 3 76 2
1
⁄
4
57
1
⁄
4
8 1.3 .5
6
1
⁄
2
15 3
13
⁄
16
97 2
5
⁄
8
67
1
⁄
4
8 2.1 .9
10
1
⁄
2
3
⁄
4
20 4
3
⁄
8
111 3
3
⁄
16
81
3
⁄
8
10 3.0 1.3
17
1
25
5
3
⁄
16
132 3
3
⁄
4
95
1
⁄
2
15 4.5 2.0
28
1
1
⁄
4
32 5
5
⁄
8
143 4
7
⁄
8
124
3
⁄
4
20 5.8 2.6
45
1
1
⁄
2
40 6
1
⁄
4
159 5 127
3
⁄
4
20 7.0 3.1
60
2
50
7
1
⁄
2
191 6
1
⁄
8
156 1
25 10.0
4.5
100
Dimensions — Weights
Performance Data
For standard
1
⁄
16
" (1.6mm) perforated stainless screen.
ES-88S 1325
© 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