Instruction Manual
D101550X012
8532 Valve
June 2017
9
Figure 4. Installation of Wafer‐Style Valves
A5557
1. See figure 4 for recommended valve orientation.
D For Wafer‐Style Valves: Install the lower flange bolts first to form a cradle for the valve (see figure 5). See table 5 for
flange bolt specifications.
D For Lugged Valves: Position the valve between the flanges. Be sure to leave enough room for the flange gaskets.
Install the lower flange bolts.
2. For all Valves: Select the appropriate gaskets for the application. Flat sheet, spiral wound, or other gasket types,
made to the ASME B16.5 standard or user's standard, can be used on 8532 valves depending on the service
conditions of the application.
3. For Wafer‐Style Valves: Properly orient the valve according to the specific application. Place the valve in the line so
the flow properly enters the valve as indicated by the flow tag. Then, install the valve and the gaskets between the
flanges into the cradle formed by the flange bolts.
4. Install the remaining flange bolts.
D For Wafer‐Style Valves: Make sure the gaskets are centered on the gasket sealing surfaces of the flange and body.
5. For all Valves: Tighten the flange bolts in an alternating criss‐cross fashion to a torque value of one‐fourth of the
final bolting torque. Repeat this procedure several times, increasing the torque value each time by a fourth of the
final desired torque. After applying the final torque value, tighten each flange bolt again to allow for gasket
compression.
Packing Adjustment and Shaft Bonding
WARNING
Personal injury could result from packing leakage. Valve packing was tightened before shipment; however, the packing
might require some readjustment to meet specific service conditions. Check with your process or safety engineer for any
other hazards that may be present from exposure to process media.
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