Table of Contents

Definition of Bite-type Tube Fittings

A bite type tube fitting is primarily an assembly composed of a fitting body, biting ferrule, and nut. The biting ferrule, a metal ring with a sharp cutting edge at its inner circular end, is key. During assembly, this edge cuts into the seamless steel tube being connected and is secured and sealed with the nut’s help.

bite type tube fittings
bite-type tube fittings

Application of Bite-type Tube Fitting

These fittings are typically used to connect and secure seamless steel tubes and other rigid tubes to other equipment or tube components, creating transition connections and seals.

Installation of Bite-type Tube Fittings

Installing bite-type tube fittings is a multi-step process that requires attention to detail to ensure a secure connection.

bite type tube fittings
bite-type tube fittings

Steps in Installation

  1. Cut the seamless steel tube to the appropriate length, removing any burrs and impurities at the ends. The tube’s cross-section must be perpendicular to the longitudinal axis with an angular tolerance not exceeding 0.5°. If bending the tube, ensure the straight-line length of the cross-section and the bending angle are at least three times the nut’s length.
  2. Slide the nut and biting ferrule onto the seamless steel tube in the correct order. If the direction is wrong, the biting ferrule will not secure and seal correctly.
  3. The assembly process is crucial. Lubricate the threads of the preassembled fitting body and biting ferrule, then insert the rigid tube into the fitting body to its maximum depth and hand tighten the nut for pre-tightening. Use a professional wrench to tighten the nut until the biting ferrule clamps the tube. Experienced workers can feel this turning point through an increase in torque or by using a torque wrench. After locking the nut, mark the position. Finally, tighten the nut another half-turn after reaching the pressure point for optimal installation and sealing effects. You can inspect the assembly by disassembling the preassembled fitting body and checking the biting ferrule’s cutting edge embedding.

Specifications for Bite-type Tube Fittings

We recommend purchasing the biting ferrule, nut, and bite type fittings as a set. Our company can provide fittings of all specifications in different standard systems, including British, American, German, and Japanese.

Conclusion

Bite-type tube fittings are widely used in many industrial devices requiring rigid tube installations. They provide a convenient, reliable, and stable connection method.

Frequently Asked Questions (FAQs)

  1. What is a bite-type tube fitting? A bite-type tube fitting is primarily an assembly composed of a fitting body, biting ferrule, and nut, used to connect and secure seamless steel tubes to other components.
  2. How are bite-type tube fittings installed? Installing these fittings involves cutting the seamless steel tube to the appropriate length, sliding the nut and biting the ferrule onto the tube, and tightening the nut until the biting ferrule clamps the tube. Finally, tighten the nut another half-turn after reaching the pressure point.
  3. Can bite-type tube fittings be used with other standard systems? Yes, our company can provide fittings of all specifications in different standard systems, including British, American, German, and Japanese.
  4. How do you ensure the correct installation of a bite type tube fitting? Correct installation can be verified by inspecting the biting ferrule’s cutting edge embedding after disassembling the preassembled fitting body.
  5. Why are bite-type tube fittings important? These fittings are important due to their role in connecting different tube interfaces, thus ensuring excellent sealing performance, corrosion resistance, safety, and stability in the system.
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