Determine Drag Pressure
Determine drag pressure using the following steps:
1) Move the carriage so that the faced pipe
ends are approximately 1" (25.4mm)
apart.
2) Shift the carriage directional control to
the middle (neutral) position (
A
).
3) Shift the pressure selector control (
B
) to
the middle heating position, and adjust
the heating pressure reducing knob (
C
)
to its lowest pressure by turning the knob
counterclockwise completely.
4) Shift the carriage directional control to the left (
A
).
5) Gradually increase the heating pressure by turning the knob
clockwise slowly. Increase the pressure until the carriage just
begins to move.
6) Quickly reduce the heating pressure knob counterclockwise until
the carriage is just barely moving.
7) View pressure on carriage pressure gauge (
D
). Record this actual
drag pressure.
TX05040-05-05-16
CD14
34
-11-18-15
0
100
200
300
400
500
600
700
800
900
1000
DIRECTIONAL
CONTROL
VALVE
FACING
PRESSURE
HEATING
PRESSURE
FUSING
PRESSURE
SELECTOR
VALVE
A - Carriage Directional Control
B - Pressure Selector Control
C - Heating Pressure Reducing Knob
D - Carriage Pressure Gauge
B
D
A
C
FUSES
MOTOR
POWER
SUPPLY
CD019
41-0
2-
07
-17
A
B
C
CD018
89-0
2-01-17
D
Calculate Fusion Pressure
With the selector control in the down position, the fusion pressure
can be set.
The theoretical fusion pressure can be calculated using the fusion
pressure calculator supplied with the machine or by using the
McCalc® app is available for iOS, Android, Windows Phone
and PC devices.
Always add drag pressure to the theoretical fusion pressure.
Gauge (Fusion) Pressure = Theoretical Fusion Pr Drag
Pressure
The use of the DataLogger
®
will provide the ability to calculate fusion pressure as
well as log fusion joints.
TX04811-05-05-16
PH
04
00
4-8-
25-0
9
Butt Fusion Procedure
3 - 9
Ac
roba
t HP
U
Dy
n
aMc EP HP
U
PH
05
50
5-0
4-18-16
Содержание A714201
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