Page 50 - Mechanical Products Installation Handbook IH-1000M

42 INSTALLATION INSTRUCTIONS HDPE Couplings
Figure 9094 HDPE Flange Coupling
• WARNING
Always read and understand the instructions including the “Installation Guidelines” provided on page 15. Failure to follow these instructions may result in improper product installation, joint failure, leakage, serious personal injury, and/or property damage.
The following instructions apply to the Figure 9094 HDPE Flange Coupling as described in technical data sheet G584. The coupling is designed to join high-density polyethylene (HDPE) to ANSI class 125 or 150 flanged piping systems. The HDPE pipe is to conform to ASTM D2447, D3000, D3035, or F714 (metric sizes to ISO 161/1, DIN8074, and AS8074), at ambient temperatures with wall thickness from SDR 7.3 to 32.5. The Figure 9094 Coupling is not intended for use on anything other than HDPE piping. Refer to Technical Data Sheet G584 for additional information.
Step 1. HDPE pipe must be cut square. The maximum allowed tolerances are 0.125 inch (3.2 mm) on HDPE pipe sizes 2 inch to 4 inch and 0.156 inch (4.0 mm) on 6 inch and larger sizes. Make sure that the pipe end, within 1 inch from the end, is clean and free from indenta- tions, projections, scratches, or other harmful surface defects such as scale, chips, and grease.
Step 2. Place the flange housings over HDPE pipe. The flange must be assembled with its machined teeth on the HDPE pipe. The gasket cavity must face the pipe end. Fasten the draw bolts and nuts loosely.
• CAUTION
To avoid injuries from sharp machined gripping teeth, wear protective gloves when handling couplings.
Step 3. The HDPE pipe end must be flush with the flange face. Use a ruler or straight edge to verify.
Step 1.
Step 2.
Step 3.