Installation and assembly instructions for GRINNELL G903 Flange Adapters, including torque values, gasket selection, and pipe groove specifications.
This guide provides step-by-step instructions for installing GRINNELL G903 Flange Adapters on grooved pipes. It covers inspection, gasket selection, bolt tightening, and torque specifications for different pipe sizes. Safety precautions are emphasized, including the use of personal protective equipment and ensuring pipes are depressurized before installation.
The guide includes detailed tables for bolt torque ranges and pipe groove dimensions for various nominal pipe sizes, from 2 inches (DN50) to 24 inches (DN600). It also specifies gasket lubrication requirements and compatibility with different pipe materials and groove types.
| Maximum Allowable Pipe End Flare Diameter (Roll Grooved) | Measured at pipe end diameter |
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Always wear safety glasses, hard hat, and foot protection. Never remove piping components without verifying the system is depressurized and drained. Failure to do so may result in serious personal injury.
A petroleum-free silicone lubricant must be used to prevent freezing of the lubricant when assembling below 40°F (4°C). Petroleum lubricants should never be used on Grade “E” “EPDM” gaskets.