EB 3131 EN
19
Design and principle of operation
Table 3:
Technical data
Valve size
DN 15
DN 20 DN 25 DN 32
3)
DN 40
3)
DN 50
3)
K
VS
coefficient
0.4
1)
1
1)
2.5 4
1)
6.3
8
12.5
16/20
3)
20/25
3)
X
Fz
value
0.6
0.55
0.55/0.45
3)
0.45/
0.4
3)
Pressure rating
PN 16/25
PN 25
Max. permissible differential pressure ∆p
across the regulator
10
2)
/20 bar
16 bar
Max. permissible temperature
Liquids: 130 °C
2)
/150 °C · Air and nitrogen: 150 °C
4)
Pressure above adjusted diff. pressure set
point at which internal excess pressure
limiter responds (Types 46-7, 47-5)
0.5 bar
Conformity
·
Differential pressure set point ranges
Type 46-7 and Type 47-1: continuously
adjustable
0.2 to 0.6 bar
0.2 to 1 bar
0.5 to 2 bar
0.2 to 0.5 bar
0.2 to 1 bar
0.5 to 2 bar
Types 47-5 · Fixed set point
0.2 bar · 0.3 bar · 0.4 bar · 0.5 bar
1)
Special versions
2)
For PN 16 version
3)
Additional version: regulator with flanged body made of spheroidal graphite iron
(EN-GJS-400-18-LT)
4)
Only in PN 25 version and diaphragm and seals made of FKM
Table 4:
Regulator without connecting parts
Valve size
DN 15
DN 20
DN 25
DN 32
1)
DN 40
1)
DN 50
1)
Pipe Ø d
21.3
26.8
32.7
42
48
60
Connection R
G ¾
G 1
G 1¼
G 1¾
G 2
G 2½
Width across flats SW
30
36
46
59
65
82
Length L
65
70
75
100
110
130
H
65
85
H1
Type 46-7
248
265
415
Type 47-1
265
285
425
Type 47-5
108
125
175
H2
Type 46-7
185
205
–
Type 47-1
200
220
H3
75
95
ØD
116
160
1)
Additional version: regulator with flanged body
