Tank Flange Standard Flat Type with Pilot

The Series 250 Standard Flat Type with Pilot flange is manufactured for dependable performance in pressure vessel, boiler, tank, and related industrial equipment applications. Its flat-face design with locating pilot supports accurate positioning and alignment during fabrication and assembly.

Manufactured in accordance with applicable Underwriters Laboratories requirements and ASME Boiler and Pressure Vessel Code provisions, these flanges are produced from recognized forged carbon steel materials and are available with standard or special thread configurations.

Key Features

• Series 250 standard flat-type flange
• Integral pilot for accurate positioning and alignment
• Manufactured in accordance with applicable UL requirements
• Complies with applicable portions of ASME Boiler and Pressure Vessel Code Sections II, IV, and VIII
• Material complies with ASTM A105 / ASME SA105
• Additional applicable materials include ASTM A181-70A and ASME SA181-70
• Standard NPT threads conform to ANSI/ASME B1.20.1-1983
• NPTF dry-seal and other special threads available

Construction Details

Manufactured from forged carbon steel materials meeting applicable ASTM, ASME, and DOT specifications, the Series 250 flange provides excellent strength and dependable service in demanding equipment assemblies.

The flat face and pilot configuration simplify alignment during installation, while precision-machined threads provide compatibility with standard threaded connections.

Important Notes

Verify flange dimensions, thread type, material, and equipment requirements before ordering or installation.

NPTF dry-seal threads and other special thread forms may require a custom order.

Refer to the complete manufacturer catalog for available sizes, dimensions, material options, and pressure limitations.

Product Documents

Complete Catalog