Yokogawa GC8000 Process Gas Chromatograph User Manual
Page 411
<6. Maintenance>
6-58
IM 11B08A01-01E
F0250.ai
In case of K9193NT, NY
In case of K9193NU, NX
(2)
(2)
(1)
Air
Air
SV11
EXH
IN
IN
IN
OUT
SV11
EXH
IN
OUT
OUT2
OUT2
OUT1
OUT1
PV12
PV11
PV11
Figure 6.50
(6) Diaphragm of Pneumatic Valve for Atmospheric Pressure Balancing or
Stream Switching
(1) Remove the pipe for air.
(2) Remove the four screws on the upper section of the stream switching valve (see Figure
6.51) or the atmospheric-pressure balancing valve (see Figure 6.52) to remove the upper
section of the valve itself.
(3) Replace the diaphragm with a new one and reassemble the valve. Install the new
diaphragm in the same orientation. Exercise care to avoid losing the adjusting pin and
spring at the lower section of the valve.
F0251.ai
1
10
No. Part name
Part number Quantity
air in
4
2
3
11
7
5
6
9
8
K9192WB
K9192W
A
1 BASE
K9192WD
1 1
2 BODY
K9192WE
1 1
3 CAP
K9192WF
1 1
4 PISTON
K9192WG 1 1
5 O-RING
K9142QU
1 1
6 O-RING
L9817FK
1 1
7 SPRING
K9192WH
1 1
8 SPRING
K9035AW
1 1
9 PIN
K9192WK
1 1
10 DIAPHRAGM K9192WL 1
K9192WV
1
11 SCREW
Y9335JU
4 4
Figure 6.51
Stream Switching Valve
2nd Edition : May 11, 2012-00