Chemtrol 6551-H 2 in Schedule 80 Socket Flange

2-Inch Schedule 80 Socket Flange

This Chemtrol fitting provides a socket-style connection for two-inch nominal pipe in Schedule 80 systems. The polyvinylidene body handles a maximum operating pressure of 150 psi across a temperature range of 73 to 280 degrees Fahrenheit. It suits industrial plumbing installations that require a flanged joint with four bolt holes on a 4 3/4-inch bolt circle. Builders needing a solvent-weld socket flange in this size and pressure class will find it appropriate.

Practical Limits of the Schedule 80 Socket Interface

The socket end accepts Schedule 80 pipe for a permanent solvent-weld bond, so the joint cannot be disassembled for maintenance. Pressure capacity is fixed at 150 psi and the temperature ceiling is 280 degrees Fahrenheit, limiting use in high-pressure steam or cryogenic lines. The four-bolt pattern with 3/4-inch holes on a 4 3/4-inch circle determines mating flange compatibility. Systems requiring higher pressure ratings or a different bolt pattern cannot use this flange.

Check Your Existing Setup Before Ordering

Verify that the piping is two-inch nominal Schedule 80 so the socket fits correctly. Confirm the mating flange shares the same 4 3/4-inch bolt circle and 3/4-inch bolt holes for proper alignment. Ensure the process fluid is compatible with polyvinylidene and that operating conditions stay within the 150 psi and 280-degree Fahrenheit limits. This flange is not suited for applications needing a threaded, welded, or higher-pressure connection.