METALOK INDUSTRIES

BACK FERRULE

BACK FERRULE

The Back Ferrule is the secondary gripping component in a two-ferrule tube fitting system. Positioned behind the Front Ferrule, it plays a key role in holding the tube securely in place by providing strong mechanical support. When the Nut is tightened, the Back Ferrule is compressed and driven forward, locking the tube in position while allowing the Front Ferrule to form a tight, leak-proof seal. Specifically designed for use with METALOK-type compression fittings, the Back Ferrule ensures reliable tube retention without damaging the tubing surface. It is available in sizes ranging from 1/8” to 2” and 3mm to 50mm and is manufactured from corrosion-resistant materials such as Stainless Steel (SS), Brass, Duplex, Monel, and Hastelloy.

  • Acts as the tube-gripping element in two-ferrule systems.
  • Compatible with METALOK compression fittings.
  • Precision-machined for accurate and repeatable performance.
  • Manufactured from robust, corrosion-resistant metals.
  • Available in a wide range of sizes for various tubing needs.
  • Provides strong, vibration-resistant tube retention.
  • Ensures alignment and stability of the tube during operation.
  • Prevents over-compression or damage to the tube.
  • Enhances overall sealing integrity of the fitting system.
  • Reliable performance in critical and high-pressure environments.
Part NoT
(Tube OD)
1-BF1/16″
2-BF1/8″
4-BF1/4″
5-BF5/16″
6-BF3/8″
8-BF1/2″
10-BF5/8″
12-BF3/4″
14-BF7/8″
16-BF1″
Part NoT
(Tube OD)
3M-BF3mm
6M-BF6mm
8M-BF8mm
10M-BF10mm
12M-BF12mm
14M-BF14mm
15M-BF15mm
16M-BF16mm
18M-BF18mm
20M-BF20mm
22M-BF22mm
25M-BF25mm

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