About Trueway Tube Fittings

Trueway Tube Fittings are Double Ferrule Compression Type Fittings comprising of precision engineered components such as Body, Front Ferrule, Back Ferrule & Nut.

Trueway Ferrule type Tube Fittings are used for achieving High-Pressure Leak-proof Joints of Metal Tubing by swaging of Ferrules using a wrench or spanner, without welding. Complete range of Tube Fittings such as Connectors, Elbows, Tees, Adaptors, Cross etc are available in various sizes.

Trueway Compression Tube Fittings are suitable for a wide range of applications, including High-Pressure Gases, Liquids, and Vacuum Systems. With a Double Ferrule design, they are ideal for even the most demanding conditions, such as Impulse, Vibration, High-Pressure Gases, and Vacuum.

Trueway Tube Fittings are available in various material grades, including Stainless Steel, Hastelloy, Inconel, Monel, Brass, PTFE, Carbon Steel etc. ensuring compatibility with your specific requirements.

Why Trueway Double Compression Tube Fittings are Preferred over others

  • Trueway Tube Fittings are Silver plating on tube fitting nuts: Avoids galling/ thread seizure. Fittings become suitable for multiple reuses.
  • Trueway Tube Fittings have Double ferrules with controlled hardness: Achieves high pressure swaging joint with tube.
  • Trueway Tube Fittings need low tightening torque while Swaging: Allows easy & damage free installations. Saves time for installation.
  • Trueway Tube Fittings are tested & approved as per ASTM F 1387-99 (2005): Suitability for critical applications.
  • Trueway Tube Fittings are supplied with Heat/ Lot no. traceability & detailed permanent marking: Easy identification of products.
  • Trueway has all Inhouse Test Facilities: Products offered with guarantee for performance.
  • Trueway Tube Fittngs are supplied with Plastic protection caps on open ends: Protection of product from damage & external dirt.
  • Trueway has Wide range of material grades: Wide selection of products for different applications.
  • Special products can be developed & delivered: Solutions under one roof possible.
  • Trueway has Experience of more than two decades: Assurance of failsafe products.
  • Trueway Tube Fittings are Low on Cost. High on Quality: Our products are cost effective with high quality, suitable even for critical applications.
  • Trueway has many Satisfied customers: Many of our customers are with us for many years, satisfied with our quality/services & same keep adding.

How to Install Trueway Double Ferrule Fittings

TRUEWAY tube fittings can be installed in following three easy steps
  • Insert the squarely cut and de-burred tubing into the fitting and ensure the tubing rests firmly against the fitting body shoulder. Rotate the nut finger-tight until tube does not rotate by hand.
  • Mark the nut at 6 o’clock position.
  • While holding fitting body steady with a spanner, tighten the nut 11/4 turns, from the marked position.
  • For smaller sizes 1/16, 1/8, and 3/16 in.; 2, 3, and 4 mm tube fittings, only 3/4 turn from finger tight is required.
  • For higher sizes above 1” (25 mm), Pre-swage the ferrules on tubing and tighten ½ turn

Tubing Selection details for High-Pressure Leak-Proof Joints with Trueway Tube Fittings

While Trueway can also supply Trueway make Tubing in complete Range along with the Trueway Tube Fittings, following care has to be taken while selection of Tubing to achieve High-Pressure Leak-Proof Joints
  • Tube OD Tolerance has to be as per ASTM A 269/ A 213
  • Tube should be without any surface Damage & Deep Lines on Surface
  • Tube should be Soft Annealed & should have Hardness as per ASTM A 269 (Preferably less than 80 HRB)
  • Proper Thickness of Tube has been selected as per the Pressure Requirements
Even though Trueway Tube Fittings can be used with any other standard make Tubing with above details, using Trueway Make Tubing with Trueway Make Tube Fittings will give assured Leak proof Joints, also for High Pressure & Critical Applications. Also, Trueway make Tubing with Matt surface Finish is available

Pressure Rating for Trueway Tube Fittings & Trueway Make Tubing

Trueway Compression Tube Fittings are Hydro tested up to 10000 psi Pressure. However, to achieve Leak-proof Joint Trueway Tubing has to be selected with Proper Thickness, as per the chart given below.
Size & Pressure Rating for TRUEWAY Seamless Stainless-Steel Tube
Sr. No. Tube Size (Inch) Tube OD (Inch) Tube wall thickness (Inch) Tube wall thickness SWG Pressure Rating (psi)
1 ¼” OD ¼” OD 0.035” 20 SWG 4000 psi
2 ¼” OD ¼” OD 0.049” 18 SWG 6000 psi
3 3/8” OD 3/8” OD 0.035” 20 SWG 3000 psi
4 3/8” OD 3/8” OD 0.049” 18 SWG 4000 psi
5 ½” OD ½” OD 0.035” 20 SWG 2000 psi
6 ½” OD ½” OD 0.049” 18 SWG 3000 psi
7 ½” OD ½” OD 0.065” 16 SWG 4000 psi