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ANSI Female Threaded Flange Steel
The Female NPT Threaded ANSI Flange is a durable steel fitting designed for secure, leak-resistant connections in industrial piping systems. Manufactured to ANSI B16.5 Class 150 standards, it features a precision-machined female NPT thread for direct connection to male-threaded pipe or components—ideal for systems where welding is not preferred.

Product Features:
- Material: High-strength carbon steel for durability and corrosion resistance.
- Thread Type: Female NPT (National Pipe Thread) for standardized compatibility.
- Flange Standard: ANSI B16.5 – Class 150 bolt pattern and pressure rating.
- Sizes Available: 1″, 1-1/2″, 2″, 2½”, 3″, 4″, and 6″.
Included Components:
- 1″, 1-1/2″, 2″, 2½”, 3″ sizes: Includes 1 gasket and 4 bolts.
- 4″ and 6″ sizes: Includes 1 gasket and 8 bolts.
Optional Accessories:
- Additional bolt kits and replacement gaskets available separately.
- Viton gaskets offered for high-temperature applications.
Applications: Designed for use in compressed air systems and inert gas lines, this flange provides a reliable threaded connection for industrial environments where safety, performance, and ease of installation are critical.

Additional information
Weight
2.662 lbs
ANSI Flange to Female NPT
25mm (1") ANSI Flange to 1" Female NPT, 40mm (1-1/2") ANSI Flange to 1-1/2" Female NPT, 50mm (2") ANSI Flange to 2" Female NPT, 63mm (2-1/2") ANSI Flange to 1" Female NPT, 63mm (2-1/2") ANSI Flange to 1-1/2" Female NPT, 63mm (2-1/2") ANSI Flange to 2" Female NPT, 80mm (3") ANSI Flange to 1" Female NPT, 80mm (3") ANSI Flange to 1-1/2" Female NPT, 80mm (3") ANSI Flange to 2" Female NPT, 80mm (3") ANSI Flange to 2-1/2" Female NPT, 100mm (4") ANSI Flange to 1-1/2" Female NPT, 100mm (4") ANSI Flange to 2" Female NPT, 150mm (6") ANSI Flange to 1" Female NPT, 150mm (6") ANSI Flange to 1-1/2" Female NPT, 150mm (6") ANSI Flange to 2" Female NPT, 150mm (6") ANSI Flange to 2-1/2" Female NPT, 150mm (6") ANSI Flange to 3" Female NPT
Color
Silver Metallic
Features
Bolts and Gasket Included, High Flow
Pressure
188 PSI, 232 PSI, 29.9 inHg (99% vacuum), 300 PSI
Connection
Threaded
Temperature
-4°F to +176°F
Material
Steel
AIRpipe Certification
ASME, ASTM, CE, CRN, EN, ISO 14001, ISO 8573-1, ISO 9001, TS, TUV, UL