Features

• Sizes range from 1/16″ to 2″ and 2 mm to 50 mm
• Diverse materials and configurations are available
• Precision machined components ensure perfect deformation of the ferrules and tubing
• Hardened threads with smooth surface finish avoid galling and help to extend the fitting service life
• Female nut threads are silver-plated to reduce the friction against the body threads
• Radius junction design for elbows provides smooth flow path
• Every fitting is marked with size, material and heat number
• Fittings are easy to disconnect and retighten
• 1/8″ to 5/8″, 3 mm to 16 mm fittings available with EC-79 certification.

Working Temperature

The working temperature of the thread ends may be limited by the Teflon Tape or Thread Sealant or, when applicable, the gaskets or O-rings as follows:

Working Pressure

• The maximum working pressures of the tube ends at ambient temperature are determined by the maximum working pressure of the FITOK Tubing that is used
• The maximum working pressures of the thread ends at ambient temperature are stated as above.
• To get the maximum working pressure at elevated temperature, use the maximum working pressure at ambient temperature to multiply the factors.
• The maximum working pressure of the whole fitting is determined by the end connection with the lowest pressure rating.

Thread Ends

NPT Threads

Comply with ASME B1.20.1, SAE AS71051

• 60° Thread Angle
• Pitch Measured in Inch
• Truncation of root and crest are parallel
• Taper 1;16
• Type of Sealing: Thread Angle

ISO Tapered Thread

Comply with ISO 7-1, EN 10226-1, BS 21, DIN 2999, JIS B0203

• 55° Thread Angle
• Pitch measured in inch
• Truncation of root and crest are round
• Taper 1:16
• Type of Sealing: Thread Sealant

For more information on the thread ends that FITOK have to offer please contact our sales team: sales@nvfcl.com or call 01942601209