METALOK INDUSTRIES

FRONT FERRULE

FRONT FERRULE

The Front Ferrule is a critical sealing component in a two-ferrule tube fitting system. Positioned between the tube and the fitting body, it is designed to create a strong mechanical grip on the tube and form a leak-tight seal when compressed by the Nut. As the Nut is tightened, the Front Ferrule is driven forward into the fitting body, wedging between the tube and the body to create a secure, pressure-resistant seal. Precision-engineered for METALOK-type compression fittings, the Front Ferrule is available in sizes from 1/8” to 2” and 3mm to 50mm, and is made from high-strength, corrosion-resistant materials such as Stainless Steel (SS), Brass, Duplex, Monel, and Hastelloy.

  • Forms the primary seal in a two-ferrule tube fitting system.
  • Designed for use with METALOK-compatible fittings.
  • Precision-machined for accurate fit and consistent performance.
  • Available in a variety of corrosion-resistant metals.
  • Suitable for high-pressure and high-temperature applications.
  • Provides a secure and leak-tight seal under extreme conditions.
  • Ensures consistent tube gripping and alignment.
  • Minimizes system downtime due to leaks or failures.
  • Maintains system integrity in vibration and thermal cycling.
  • Ideal for use in critical fluid and gas handling systems.
Part NumberT
(Tube OD)
1-FF1/16″
2-FF1/8″
4-FF1/4″
5-FF5/16″
6-FF3/8″
8-FF1/2″
10-FF5/8″
12-FF3/4″
14-FF7/8″
16-FF1″
Part NumberT
(Tube OD)
3M-FF3mm
6M-FF6mm
8M-FF8mm
10M-FF10mm
12M-FF12mm
14M-FF14mm
15M-FF15mm
16M-FF16mm
18M-FF18mm
20M-FF20mm
22M-FF22mm
25M-FF25mm

Working