Page 35 - Tyco-Grooved-Fire-Protection-Products-Installation-Handbook
P. 35

 Figure 702 Mechanical Outlet Coupling 1 of 2 NOTICE
 Always read and understand the instructions. Never remove any piping component without verifying that the system is depressurized and drained.
Reducing Couplings are not recommended for applications below 40°F (4°C).
Installation/Assembly Instructions
The following instructions apply to Figure 702 Mechanical Outlet Cou- plings. The installation is based on pipe grooved in accordance with Standard Cut Groove or Roll Groove Specifications. Refer to Technical Data Sheet TFP1898 for more information.
Step 1. Inspect exterior groove and ends of the pipe to verify all burrs, loose debris, dirt, chips, paint and any other foreign material such as grease are removed. The sealing surfaces of the pipe ends must be free from projections, indentations, or other markings.
Step 2. Verify that the coupling and gasket grade are correct for the application intended. Refer to data sheet G610 for additional gasket information.
The Figure 702 gasket contains a plated steel ring inside the outlet neck to aid sealing. Do not remove this steel ring.
The sealing edges and outer surfaces of the gasket should be covered with a fine layer of petroleum-free lubricant or equivalent. To prevent deterioration of the gasket material a petroleum lubricant 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 3. Mount the gasket over one end of the pipe so that the gasket lip covers the area between the pipe end and the groove.

   33   34   35   36   37