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The MACOMB GROUP 081-040-000 weld cap has a nominal size of 4 IN and a buttweld connection type. Constructed from carbon steel conforming to ASTM A234 Grade WPB, it is designed for XS/SCH 80 schedules. It has a maximum pressure of 2751 PSI and a temperature rating of -20 to 650 DEG F.
The shape of the cap is 2:1 ellipsoidal and conforms to the shape requirements given in the ASME boiler and pressure vessel code
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