Table des Matières
Publicité
Les langues disponibles
Les langues disponibles
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
C
C
+1
+
/
1
2
0
-
/
1
2
-1
-1
/
1
2
-2
-2
/
1
2
0.1
0.2
0.3
0.5
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
9. Cleaning Function
Rust, scale and other buildup on the valve seat may hinder the sealing ability of the steam trap
and cause steam leakage and resultant higher product temperature; or block the valve seat
opening - thereby preventing condensate discharge and resultant lowered product temperature.
The LEX3N-TZ contains a built-in cleaning device that can be used without removing the trap
from the line. Follow the steps below to remove contaminant accumulation from around the valve
opening.
CAUTION
Cleaning Function Instructions
1. First close the inlet isolation valve, followed by then closing the outlet isolation valve. Wait
until the pressure between the inlet isolation valve and the trap equals atmospheric pressure
(when the trap body temperature cools to room temperature). Do not remove the cap nut or
the cover unless the trap is isolated from and is not subjected to steam pressure.
2. Hold the cover with one wrench and use another wrench to slowly loosen and remove the
cap nut. Remove cap nut slowly to allow any residual pressurized steam to leak from the
trap interior through the threads of the adjustment screw and the cover. If steam leakage
occurs while loosening cap nut or locknut, disassemble the trap and replace both the
seal ring and the cover gasket (see chapter 10).
200
190
180
170
160
150
140
130
120
B
B
110
100
90
A
A
80
70
60
50
1
2
3
4.6
• To prevent possible injury, always relieve pressure from trap before
opening to clean the trap.
• Always wear heat-insulated gloves and eye protection for the following
instructions. Failure to do so may result in burns.
+5
+4
/
1
2
+4
+3
/
1
2
+3
+2
/
1
2
+2
+1
/
1
2
D
+1
+
/
1
2
0
-
/
1
2
-1
-1
/
1
2
-2
-2
1
/
2
15
Operating Pressure (psig)
̶ 10 ̶
B
C
C
A
A
50
100
200 300
500650
Continued on page 11
390
380
360
340
320
300
280
260
240
220
210
200
180
160
140
120
Publicité
Table des Matières
