FITOK Tube Fittings Are Fully ASTM F1387 Certified


6D series tube fittings


We are proud to announce that FITOK 6D Series Tube Fittings have passed all standard qualification tests and supplementary tests listed below and are fully ASTM F1387 certified in the presence of a third party. This is a powerful endorsement of our product quality and technical strength, and a testament to our constant pursuit of excellence.


ASTM F1387, Standard Specification for Performance of Piping and Tubing Mechanically Attached Fittings, is published by the American Society of Testing and Materials. This Specification consists of standard test items and supplementary test items. It is essential for testing fittings used for United States naval ships and has become one of internationally recognized authoritative standards for piping in recent years.

ASTM F1387 adopts various stringent testing conditions to simulate a harsh working environment, where fittings are tested for sealing performance. Our 6D Series Tube Fittings have stood stringent challenges, which proves that they conform to requirements of the Specifications in key attributes of connection strength, sealing performance, etc. This demonstrates that our products stand up to practical test and are able to play a remarkable role in piping systems of various industries.


ASTM F1387 Testing Items for FITOK 6D Series Tube Fittings


Tests Based on ASTM F1387 - Standard Qualification Tests
ASTM F1387 Section No. Name of Test Status
A2 Examination of Specimen Pass
A3 Pneumatic Proof Test Pass
A4 Hydrostatic Proof Test Pass
A5 Impulse Test Pass
A6 Flexure Fatigue Test Pass
A7 Tensile Test Pass
A8 Hydrostatic Burst Test Pass
A9 Repeated Assembly Test Pass
A10 Rotary Flexure Test Pass


Tests Based on ASTM F1387 - Supplementary Tests
ASTM F1387 Section No. Name of Test Status
S2 Thermal Cycling Test Pass
S3 Elevated Temperature Soak Test Pass
S4 Stress-Corrosion Test Pass
S5 Torsion Test Pass
S6 Shock Test Pass
S7 Fire Test Pass
S8 Vibration Test Pass


Our tube fittings can meet your needs in piping systems of petrochemical, oil and gas, energy and other industries. Thank you for your continuous support and trust. Should you have any questions or needs, please feel free to contact us. We will offer you our best services and reliable, safe, and efficient solutions.


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Last updated June 16, 2020


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