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

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%

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

PTFE Ferrules 100%

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

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.

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