Internal expansion is a extremely important in certain applications, and we are proud to offer a great ability to install these specialized hose fittings on hoses up to 6 inches in diameter.
What is internal expansion?
Internal expansion involves drawing a die through the end fitting, expanding that fitting from the inside out and expanding it and the inside diameter of the hose outward against a specialized heavy ferrule which securely holds the hose end fitting into the hose.
Why is internal expansion important?
The more common crimping or clamping method for hose end fitting installation involves inserting a fitting into the hose and then clamping down from the outside of the hose. While this is standard for many applications and works well, it does have the disadvantage of reducing the inside diameter of the hose. With Internal expansion the fitting is expanded to match the inside diameter of the hose, this leaves the connection with a virtually transition free flow profile. These connections are termed “full flow” because the end fittings do not introduce any restriction of flow to the connection.
Common applications for internal expansion:
- Food Industry
- Allows for superior cleanliness and cleanability.
- More viscous or thick media will flow more smoothly.
- Greater flow efficiency increases production capabilities and reduces the load on pumping equipment.
- Tar and Asphalt
- Hot tar hoses require internal expansion to ensure that the tar doesn’t build up on the lip of a standard end fitting.
- Plaster, Grout, Concrete
- Any thick media that requires great force to pump can benefit from the “full flow” of internally expanded fittings.
- Fuel delivery and aircraft fueling
- Whether delivering home heating oil or fueling an airplane, time is money.
- Internal expansion optimizes flow rates and keeps things moving.
- Whether delivering home heating oil or fueling an airplane, time is money.