Instruction Manual
D101550X012
8532 Valve
June 2017
7
Figure 2. Available Seal Configurations
PTFE OR UHMWPE SOFT
SEAL WITH BACKUP O-RING
BACKUP
O-RING
SEAL RING
RETAINING
RING
VALVE DISK
VALVE BODY
T-SLOT
NORMAL
FLOW
DIRECTION
NOVEX METAL SEAL
GRAPHITE
GASKET
METAL
SEAL RING
RETAINING
RING
VALVE DISK
VALVE BODY
NORMAL
FLOW
DIRECTION
PHOENIX III
FIRE SAFE SEAL
BACKUP
O-RING
METAL
SEAL RING
GRAPHITE
GASKET
VALVE DISK
VALVE BODY
NORMAL
FLOW
DIRECTION
RESILIENT
INSERT
B2313-3
Adjusting the Actuator Travel Stops or Travel
Key number locations are shown in figures 9 and 10, unless otherwise noted.
1. Refer to the actuator instruction manual to locate the actuator travel stop that controls the closed position of the
valve disk (key 2). When adjusting the travel stop or travel, make sure that the disk is from 0 to 0.76 mm (0 to 0.030
inch) away from the internal stop in the valve body (see figure 5). This adjustment is necessary to be certain that the
actuator output torque is fully absorbed by the actuator travel stop or by the actuator. The internal travel stop in the
valve body should not absorb any of the actuator torque.
2. Before installing the valve/actuator assembly in the process line, cycle the valve several times to be sure the valve
disk returns to the proper position.
Installing the Valve
The maximum allowable inlet pressures for 8532 valves are consistent with the applicable ASME pressure/temperature
ratings except where limited by the material capabilities as shown in table 2 or figure 2.
Refer to table 5 for the quantity and size of line bolting required to install the valve in the pipeline.
CAUTION
To avoid damage to the valve disk during installation, the valve must be in the fully closed position. If the 8532 valve is
equipped with a fail‐open actuator, remove the actuator before installing the valve/actuator assembly or cycle the valve
into the fully closed position. Then, take appropriate steps to be sure that the actuator does not cause the valve to open
during installation.
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