METALOK INDUSTRIES

TUBE INSERT

TUBE INSERT

A Tube Insert is a reinforcement component used in conjunction with soft or thin-walled tubing to prevent deformation or collapse during compression fitting installation. It is inserted into the end of the tube to provide internal support when the Nut and Ferrules are tightened, ensuring a proper seal and maintaining the structural integrity of the tubing. Tube Inserts are particularly useful in plastic, copper, or other soft metal tubing applications, where added support is essential for leak-free and vibration-resistant connections. Available in sizes from 1/8” to 2” and 3mm to 50mm, Tube Inserts are made from durable materials such as Stainless Steel (SS), Brass, and other compatible metals.

  • Provides internal support for soft or thin-walled tubing.
  • Prevents tube collapse during compression fitting assembly.
  • Compatible with METALOK and other compression fitting systems.
  • Available in a wide range of sizes and materials.
  • Easy to insert and remove as needed.
  • Ensures a secure, leak-tight connection.
  • Maintains tube shape and alignment under compression.
  • Enhances fitting performance and longevity.
  • Reduces the risk of system failure due to tube deformation.
  • Ideal for use in soft metal or plastic tubing applications.
Part NumberT
(Tube OD)
Tx
(Tube OD)
Ø D
(mm)
4-TI-21/4″1/8″2.3
4-TI-31/4″3/16″3.5
6-TI-33/8″3/16″3.5
6-TI-43/8″1/4″4.0
8-TI-61/2″3/8″7.0
12-TI-83/4″1/2″11.0
12-TI-103/4″5/8″14.0
Part NumberT
(Tube OD)
Tx
(Tube OD)
Ø D
(mm)
6M-TI-4M6mm4mm2.8
8M-TI-6M8mm6mm4.4
10M-TI-8M10mm8mm6.4
12M-TI-8M12mm8mm6.4
12M-TI-10M12mm10mm8.3

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