REPAIR AND REPLACEMENT PROCEDURES
COMPONENT REMOVAL AND INSTALLATION PROCEDURES
WBPEEUI110505A0
8 - 5
2. Coat the O-rings with a film of Dow Corning No. 4 com-
pound and install.
3. Mount the low pressure (-) side process flange and the tank
flange/cell and characterization board assembly in the proper
position and insert the process flange studs until the process
flange nuts already installed come in contact with the tank
flange assembly.
4. Starting with one of the other four process flange nuts, fin-
ger tighten it only until it comes in contact with the process
flange.
5. Proceed in the same manner with the remainder of the pro-
cess flange nuts, operating diagonally two by two.
6. Working diagonally two by two, tighten the process flange
nuts in 25% increments until reaching a value of 65 to 69 Nm
(48 to 52 ft-lbs) for stainless steel and NACE nuts or 78 to
82 Nm (57 to 61 ft-lbs) for carbon steel nuts.
NOTE: If the O-rings are PTFE, tighten to the same torque again
after
five days. This is necessary due to the cold flow properties of
PTFE. Tests have shown that a loss of torque of as much as
40 percent occurs over the five days. After a second tightening, no
loss of torque is apparent.
7. Coat the cylindrical part of the cell with a light coating of
the DRI-GLIDE sealant (Fig.
).
Figure 8-3. Type PTSDL Level Transmitter
T 02 2 28 A
C E L L L O C K
F LA N G E A DA P T E R B O LT S
V E N T /D R AIN
P LU G
1 /2 -1 4 N P T C O N D U IT
C O N N E C T IO N
(B OT H S ID ES )
E Z -C A L O P T IO N
H IG H P R E S S U R E S ID E
P R O C E S S F L A N G E
H IG H P R E S S U R E S ID E
C O N N E C T IO N (+ )
P R O C E S S
F LA N G E
N U T S (8 )
C E L L L O C K IN G
S C R E W
(OT H E R S ID E )
L OW P R E SS U R E
S ID E P R O C E S S
F LA N G E
R IG H T
H O U S IN G
C OV E R
(P RO T E C TS
T E R M IN A LS )
L OW P R E SS U R E S ID E
P R O C E S S C O N N E C TIO N (– )
1 /2 -1 4 N P T O N F L A N G E A DA P TE R
1 /4 -1 8 N P T O N B O DY (T Y P IC A L)
O P T IO N A L F L AN G E A D AP T E R
(F O OT B A LL )
O P T IO N A L
E X T EN SIO N
E LE C T R O N IC S
A S S E M B LY
O -R IN G S E A L (2 )
L EF T H O U S IN G C OV E R
(P RO T E C TS E LE C T R O N IC S
A N D O P T IO N A L L C D
O R A N A L O G M E T E R )
P R O C E S S F L A N G E
S T U D S (4 )
C E L L
Содержание Platinum standard Series
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