Series 519 Instruction Sheet

Service Instructions
There is no service required for the differential by-pass valves.
CAUTION: If the by-pass valve is not installed, commissioned and
maintained properly, according to the instructions contained in this
manual, it may not operate correctly and may endanger the user.
CAUTION: Make sure that all the connecting pipework is water tight.
Leave this manual for the user.
Caleffi North America, Inc.
3883 West Milwaukee Road
Milwaukee, WI 53208
T: 414.238.2360 F: 414.238.2366
CALEFFI
∆p (m w.g.)
1 2 0
G (m
3
/h) (gpm)
∆p (m w.g.) (psi)
0
1
2
3
4
5
6
7
0
10
1
2
3
4
5
6
7
8
9
11
5 0 10 15 25 20 30
3 4 5 6
40 35 45
7 8 9 10
8
0
1
2
3
4
5
6
7
8
code 519700A -
519709A (1 1/4”)
1
2
3
4
5
6
➧
Setting positions
∆p (m w.g.)
1 2 0
G (m
3
/h) (gpm)
∆p (m w.g.) (psi)
0
1
2
3
4
5
6
7
0
10
1
2
3
4
5
6
7
8
9
11
5 0 10 15 25 20 30
3 4 5 6
40 35
7 8 9
8
0
1
2
3
4
5
6
7
8
code 519600A -
519609A (1”)
1
2
3
4
5
6
➧
Setting positions