Page 38 - Tyco-Grooved-Fire-Protection-Products-Installation-Handbook
P. 38

 Figure 71 Flange Adapter 2 of 2
Step 4. The sealing edges and outer surfaces of the gasket should be covered with a fine layer of petroleum-free lubricant. To prevent deterio- ration of the gasket material a petroleum lubri- cant should not be used on Grade “E” “EPDM” gaskets. For assembly below 40°F (4°C) a petroleum-free silicone lubricant must be used to prevent freezing of the lubricant.
Step 5. Place the gasket into the gasket pocket with the gasket marking side in first.
Step 6. Bring both the Flange Adapter and the opposite Flange together. Ensure proper align- ment and slide each of the remaining flange bolts (not supplied) in the remaining bolt holes. Tighten all nuts uniformly in an alternating pattern to bring the flange faces firmly together and check that the nuts are sufficiently torqued.
For proper bolt torques refer to Pages 58 and
60. Bolt torque information has been provided in accordance with the UL 213 “Standard for Rubber Gasketed Fittings
for Fire Protection Service” (Refer to Page 12).
Flange Washer Adapters are required when the Figure 71 Flange Adapter is used against surfaces such as:
1. Rubber surfaces
2. Adapting to AWWA cast flanges
3. Rubber faced wafer valves
4. Serratedflangesurfaces
Figure 71 Flange Adapters are not recommended for applications that incorporate tie rods for anchoring, or on standard fittings within 90° of each other. Refer to Technical Data Sheet TFP1880 for more information.

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