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Reference Manual
00809-0100-4388, Rev BA
January 2008
Rosemount 1153 Series D
2-8
Conduit 1. Seal the conduit threads with thread sealant (the transmitter conduit
seal interface was qualified using Grafoil™ tape). Conduit threads
mate with a standard
1
/2–14 NPT male fitting.
2. Starting at zero thread engagement, install the conduit into the
transmitter between 4 and 7 turns, or a minimum of 12.5 ft-lb (16.9
N-m). Hold the electronics housing securely to avoid damaging the
threaded neck seal between the sensor module and the electronics
housing during conduit installation.
3. Provide separate support for the conduit if necessary.
Figure 2-6. Transmitter Installation Configurations
Blocking Valves
Flow
3-Valve Manifold
Plugged Tees for Steam
Service or Sealing Fluid
Drain/Vent
Valves
Sufficient
Length
for Cooling
Rosemount 1153DD, HD
Plugged Tees for
Steam Service or
Sealing Fluid
Blocking
Valve
Drain/Vent
Valve
Sufficient
Length
for Cooling
Rosemount 1153AD, GD
Rosemount 1153AD, GD
LIQUID SERVICE
Drain/Vent
Valves
Drain/Vent
Valve
3-Valve
Manifold
Flow
Rosemount 1153DD, HD
GAS SERVICE
H
H
L
L