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PIPING WORK
8.2 STOP vALvES
LIQUID vALvE
(Spindle type)
RAS-(4-6)
FS(v)NME
RAS-(8-12)
FSXNME
B
A
C
D
HEX4
Tightening torque (Nm)
A
33-42
B
14-18
C
33-42
D/E
7-9
Nº
Description
A
Cap
Core valve
Check Joint
B
Only the charging hose
cap
can be connected.
!
C A U T I O N
C
Flare nut
If the flare nut is tightened too hard, the flare nut
may crack after a long time and cause refrigerant
leakage.
Open – Counterclockwise
D
Spindle
Close – Clockwise
This valve is opened or closed by rotating 90
degrees. Rotate the stem until the pin touches
E
Stem
the stopper. Do not apply extra force. Do not
leave the ball valve partly open.
28
PMML0511 rev.1 - 06/2019
GAS vALvE
(Ball type)
RAS-(4-6)
RAS-(8-12)
FS(v)NME
FSXNME
A
A
B
B
C
C
E
1.5mm
90º
90º
20-25
27.5-32.5
14-18
12-14
68-82
95-105
≤5
≤5
Remarks
(4-6)HP
1
4
Liquid pipe (ø9.52)
(field-supplied)
Liquid pipe (ø15.88)
(field-supplied)
10HP
1
2
Liquid pipe (ø9.52)
(field-supplied)
Accessory pipe (*)
E
(OD19.05→ID22.2)
Gas pipe (ø22.2)
(field-supplied)
6mm
8HP
1
2
Liquid pipe (ø9.52)
(field-supplied)
Gas pipe (ø19.05)
(field-supplied)
Accessory pipe
(OD19.05→ID15.88)
Gas pipe (ø15.88)
(field-supplied)
12HP
1
2
Accessory pipe
(OD9.52→ID12.7)
Liquid pipe (ø12.7)
(field-supplied)
Accessory pipe (*)
(OD19.05→ID22.2)
Accessory pipe
(OD19.05→ID25.4)
Gas pipe (ø25.4)
(field-supplied)
Gas pipe (ø22.2)
(field-supplied)
?
N O T E
•
Flare all the pipes and accessories to connect with the stop valves.
•
(*)Cut the accesory
Heat pump
8HP
1
2
Liquid pipe (ø9.52)
(field-supplied)
Gas pipe (ø19.05)
(field-supplied)
12HP
1
2
Accessory pipe
(OD9.52→ID12.7)
3
Liquid pipe (ø12.7)
(field-supplied)
Accessory pipe
(OD19.05→ID25.4)
Gas pipe (ø25.4)
(field-supplied)
Heat recovery
10HP
1
2
Liquid pipe (ø9.52)
(field-supplied)
3
Accessory pipe (*)
(OD19.05→ID22.2)
Gas pipe (ø22.2)
(field-supplied)
Gas pipe (ø19.05)
(field-supplied)
Nº
Description
Stop valve for liquid line
Stop valve for gas line (Low)
Stop valve for gas line
(High/Low)
Stop valve for gas line
3
!
C A U T I O N
Use a reducer valve when
nitrogen gas blowing is performed
during brazing. The gas pressure
should be maintained within 0.03
to 0.05 MPa. If a excessively high
pressure is applied to a pipe, it will
cause an explosion.
OD19.05→ ID22.2/25.4.
3
3
3
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