Page 38 - Mechanical Products Installation Handbook IH-1000M

30 INSTALLATION INSTRUCTIONS Mechanical Outlet Couplings
Figure 702 Grooved Outlet Coupling
The following instructions apply to the Figure 702 Grooved Outlet Coupling as described in technical data sheet G220. The installation is based on IPS steel pipe grooved in accordance with Standard Cut Groove or Roll Groove Specifications. Refer to Tech Data Sheet G710 for additional information.
Step 1. Inspect exterior groove and ends of the pipe to verify all 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, indenta- tions, or other markings.
Step 2. Verify that the coupling and gasket grade are correct for the application intended. Refer to Tech Data Sheet G610 for additional gasket information.
Note: The Figure 702 gasket contains a plated steel ring inside the outlet neck to aid sealing. Do not remove this steel ring.
To help insert pipe easily and mount couplings smoothly without pinching, the edges and outer surfaces of the gasket should be covered with a fine layer of lubricant.
To prevent gasket deterioration, a petroleum- free lubricant is required for all EPDM gaskets.
For low temperature applications, a petroleum- free silicone-based lubricant such as Dow Corning* No. 7 Release Compound should be used to prevent lubricant freezing.
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.
Step 4. Insert the mating pipe into the other end of the gasket. Install both pipes until their ends touch the built-in internal rib of the gasket, which works as a pipe stop. No part of the gasket should protrude into the groove of either pipe.
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Step 2.
Step 3.
Step 4.