Ferrules

Ohio Valley offers a wide variety of one-piece ferrules. We offer GC ferrules in 100% Graphite, 60% Polyimide/40% Graphite, 85% Polyimide/15% Graphite, 100% Polyimide, and 100% PTFE ferrules. Various combinations of reducing ferrules are available.

Choosing the Right Ferrule

Types 1/16″ x 0.4mm 1/16″ x 0.5mm 1/16″ x 0.8mm 1/16″ x 1.0mm No Hole 2 Hole	Recommended Use Capillary Tubing with ID of 0.10-0.25mm Capillary Tubing with ID of 0.28-0.35mm Capillary Tubing with ID of 0.45-0.53mm Capillary Tubing with ID of 0.75mm Custom fittings or plugs Connects 2 Pieces of capillary tubing to the same fitting

Maximum Operating Temperatures

100% Graphite ferrules 85% Polyimide / 15% Graphite 60% Polyimide / 40% Graphite 100% Polyimide ferrules 100% PTFE ferrules	450°C 400°C 400°C 350°C 250°C

Ferrules

Ohio Valley offers a wide variety of one-piece ferrules. We offer ferrules in 100% Graphite, 60% Polyimide/40% Graphite, 85% Polyimide/15% Graphite, 100% Polyimide, and 100% PTFE ferrules. Various combinations of reducing ferrules are available.

Choosing the Right Ferrule

Types 1/16″ x 0.4mm 1/16″ x 0.5mm 1/16″ x 0.8mm 1/16″ x 1.0mm No Hole 2 Hole	Recommended Use Capillary Tubing with ID of 0.10-0.25mm Capillary Tubing with ID of 0.28-0.35mm Capillary Tubing with ID of 0.45-0.53mm Capillary Tubing with ID of 0.75mm Custom fittings or plugs Connects 2 Pieces of capillary tubing to the same fitting

Maximum Operating Temperatures

100% Graphite ferrules 85% Polyimide / 15% Graphite 60% Polyimide / 40% Graphite 100% Polyimide ferrules 100% PTFE ferrules	450°C 400°C 400°C 350°C 250°C

Graphite
Ferrules 100%

PTFE
Ferrules 100%

Polyimide/
Graphite Ferrules

Polyimide
Ferrules 100%

Graphite Ferrules 100%

Our graphite ferrules fit “Swagelok” or “Parker” fittings. Graphite ferrules are soft and compliant. They will not stick to glass at higher temperatures. These GC ferrules are ideal for glass to metal connections. The graphite ferrule can be reused if not over tightened.

1/16″ OD 100% Graphite Ferrules

1/4″ OD 100% Graphite Ferrules

1/8″ OD 100% Graphite Ferrules

Assorted Graphite Ferrules

PTFE Ferrules 100%

The PTFE ferrules are a one piece design and require no back ferrule. These ferrules are completely inert.

1/16″ OD PTFE Ferrules

1/4″ OD PTFE Ferrules

1/8″ OD PTFE Ferrules

Assorted PTFE Ferrules

Polyimide/Graphite Ferrules

60% Polyimide / 40% Graphite Ferrules
Size 1/16″
Size 1/4″
Size 1/8″

85% Polyimide / 15% Graphite Ferrules
Size 1/16″
Size 1/4″
Size 1/8″

Polyimide Ferrules 100%

Improved mixing techniques for polyimide ferrules allow for better homogenous mixing of graphite and polyimide resin. One can observe this when looking at a polyimide ferrule. The surfaces are very smooth and exhibit a highly polished or highly shined surface.

1/16″ OD Polyimide Ferrules

1/4″ OD Polyimide Ferrules

1/8″ OD Polyimide Ferrules