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material
Regulator
Body
Bonnet
Slotted disc
Diaphragm, O-rings
Slam shut
Connecting part
Seat
Valve plug
Pilot
Body
Manometric box
Filter
cOEFFIcIEnTS
caPacITy
cg
c1
Valve plug travel (mm)
TyPE
PRX/120
PRX/125
PRX/120-aP
PRX/125-aP
Steel
Steel
Stainless steel
Nitrile
Steel
Stainless steel
Stainless steel
Steel
Stainless steel or Aluminium
Steel
Table 2. Flow Coefficients and Valve Plug Travel
DN 25
100%
480
60%
290
30%
140
100%
33
60%
29
30%
30
35
Table 3. Pilot Pressure Ranges
OuTLET PRESSuRE
RangE, bar
1.0 to 1.8
1.8 to 3.0
3.0 to 5.5
5.5 to 8.5
8.5 to 14.5
14.5 to 23.0
23.0 to 30.0
30.0 to 40.0
30.0 to 80.0
connections
Inlet / Outlet:
ISO PN 100 B
ISO PN 50 B
ISO PN 20 B
Other possibilities exist (contact factory)
ISO PN 16 B, 25 B, 40 B
Pilot Impulse line (IP):
Pilot Monitor impulse line (IM):
Intermediate impulse line (PI):
Slam shut impulse line:
Mechanism box vent:
Impulse diameter:
DN 50
DN 80
1800
3400
1020
1970
560
970
36
37
28
29
29
26
35
50
PILOT cOnTROL SPRIng InFORmaTIOn
Spring color
Yellow
Green
Blue
Black
Silver
Gold
Aluminium
Red
Clear
Type EZR
(ANSI 600 RF)
(ANSI 300 RF)
(ANSI 150 RF)
1/4'' NPT tapped
1/4'' NPT tapped
1/4'' NPT tapped
1/4'' NPT tapped
1/4'' NPT tapped
Pipe interior Ø 8/10 mm minimum
DN 100
DN 150
5550
11200
3300
7150
1690
3570
38
27
26
50
Part number
M0255240X12
M0255230X12
M0255180X12
M0255220X12
M0255210X12
M0255200X12
M0255860X12
M0255190X12
M0273790X12
36
30
26
50
B05a
B05b
3
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