Caleffi 167 - Manuale

By-pass differenziale per gruppi serie 165, 166 e 167 I
Differential by-pass for 165, 166 and 167 series units GB
Funzione
La valvola di by-pass differenziale viene utilizzata per controllare la
prevalenza a cui è sottoposto il circuito di distribuzione secondario.
Function
The differential by-pass valve is used to control the head to which the
secondary distribution circuit is subjected.
cod. 519006 © Copyright 2012 Caleffi
Hydraulic characteristics
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0 200 400 600 800 1000 1200 1400 1600 1800
0
5
10
15
20
25
30
35
40
45
50
55
60
65
70
75
80
Flow rate (l/h)
∆p (kPa) ∆p (m w.g.)
0
0,5
1,0
1,5
2,0
2,5
3,0
3,5
4,0
4,5
5,0
5,5
6,0
6,5
7,0
7,5
8,0
0,2
0,5
1,0
1,5
2,0
2,5
3,0
Setting
positions ➧
Technical specifications
Body:
brass EN 1982 CB753S
Obturator: EPDM
Spring: stainless steel
Seals: EPDM
Max. working pressure: 10 bar
Max. working temperature: 100°C
Setting range: 2÷30 kPa (0,2÷3 m w.g.)
Connections: 1” M x 1” M