Page 44 - Mechanical Products Installation Handbook IH-1000M

36 INSTALLATION INSTRUCTIONS Plain End Couplings
Figure 909 Plain End 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.
This section covers the following products, listed below with their corresponding tech data sheets.
• Figure 909 Plain End Couplings (TDS G190) for installation on plain end or beveled standard wall steel, stainless steel, or aluminum pipe.
Step 1. Square cut the pipe ends. Maximum variation from perpendicular (P Dimension) is 1/32˝ (0.8 mm) for 2˝ – 6˝ pipe sizes, 1/16˝ (0.60 mm) for 8˝ – 10˝ pipe sizes. Inspect the pipe ends to verify all burrs, loose debris, dirt, chips, paint and any other foreign material such as grease are removed. Pipe end sealing surfaces must be free from sharp edges, projections, indentations, and/or other defects.
Step 2. Using a ruler or tape measure and a bright colored marking pen, make a mark 1˝ (25 mm) from the pipe ends. A minimum of 4 marks equally spaced around the pipe is recommended.
Step 3. Make a second mark from the pipe ends. Refer to the Figure 909 Plain End Cou- pling dimensional data listed in the Plain End Systems section of this manual. Make these marks parallel to the marks from Step 2.
Step 4. Verify that the gasket grade is correct for the application intended. Refer to the Gaskets section of this manual, or Tech Data Sheet G610 for additional gasket information.
The sealing edges and outer surfaces of the gasket should be covered with a fine layer of lubricant. To prevent deterioration of the gasket material, a petroleum-free lubricant should only be used on Grade “E” “EPDM”. For assembly below 40°F (4°C), a petroleum-free silicone lubricant must be used to prevent freezing of the lubricant.
Step 1.
P
Step 2.
Step 3.
Step 4.