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Standard Factory Setting ("0" Position):
The standard "0" position is the position where point (A), the
bottom of the adjusting screw slot is even with point (B), the
top surface of the cap.
FX1
100 °C at 0.9 MPaG (9 barg),
212 °F at 130 psig
Temperature Setting Range
200
15 ˚C below saturated
steam temperature
150
100
50
0.1
0.2
0.3
Operating Pressure (MPaG)
1 MPa = 10.197 kg/cm
= 10 bar
2
Set Temperature Adjustment Chart
The trap can be set to open at any temperature between 50 °C and 200 °C (120 °F and 390 °F)
provided the set temperature is at least 15 °C (27 °F) below saturated steam temperature.
To determine the number and direction of adjusting screw turns required for the desired set
temperature, refer to the charts below.
1. Start at the standard factory setting (point A) (100 °C at 0.9 MPaG, 9 barg; 212 °F at 130 psig).
2. Move up or down vertically to the desired set temperature (point B).
3. Follow the set temperature line in either direction to the vertical line corresponding to the
actual operating steam pressure (point C).
4. Follow the horizontal line to where it meets the left side of the chart (point D), indicating the
number and direction of turns required. (- turn: clockwise, + turn: counterclockwise)
+5
+4
1
/
2
+4
+3
1
/
2
+3
+2
1
/
2
+2
+1
1
/
2
D
D
+1
+
1
/
2
+ -
0
1
-
/
2
-1
-1
1
/
2
-2
1
-2
/
2
0.1
0.2
0.3
Operating Pressure (MPaG)
1 MPa = 10.197 kg/cm
= 10 bar
2
- turn: clockwise, + turn: counterclockwise
Standard "0" position = 100 ˚C at 0.9 MPaG, 9 barg; 212 ˚F at 130 psig
0.5
0.7
1
2.1
200
190
180
170
160
150
140
130
B
B
C
C
120
110
100
A
A
90
80
70
60
50
0.5 0.7
1
1.5
2.1
― 10 ―
Adjusting
Screw
390
27 ˚F below saturated
steam temperature
300
200
120
15
20
30
50
Operating pressure (psig)
+5
+4
1
/
2
+4
+3
1
/
2
+3
+2
1
/
2
+2
+1
1
/
2
+1
D
D
C
C
+
1
/
2
+ -
0
1
-
/
2
-1
-1
1
/
2
-2
1
-2
/
2
10
30
50
100 150 200 300
Operating Pressure (psig)
Adjuster Slot
A
B
100
200
300
390
380
360
340
320
300
280
260
B
B
240
220
210
A
A
200
180
160
140
120
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