
Bulletin 74.2:T208
3
Figure 2. Type T208 with Internal Pressure Registration Operational Schematics
Figure 3. Type T208M with External Pressure Registration Operational Schematics
INLET PRESSURE
OUTLET PRESSURE
ATMOSPHERIC PRESSURE
INLET PRESSURE
OUTLET PRESSURE
ATMOSPHERIC PRESSURE
ERSA02737
ERSA02738
DIAPHRAGM
UMBRELLA VENT
PIPE PLUG
LEVER
STEM
ORIFICE
DISK
BACK DISK SPRING
CONTROL SPRING
DIAPHRAGM
UMBRELLA VENT
CONTROL LINE CONNECTION
LEVER
STEM SEAL O-RING
CONTROL SPRING
THROAT SEAL
ORIFICE
DISK
BACK DISK SPRING
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