Male Thread Straight Elbow Plastic Hose Barbed Hose Bulkhead Union Connector

Match two dimensions: (1) the thread size of your port — measure the outer diameter of the male thread or check your equipment manual for the metric thread spec (M6, M8, M10, etc.); (2) the inner diameter of your flexible tubing — the barb OD should equal or be very slightly larger than the tubing ID so the barb grips firmly when pushed in.

The Straight type creates an inline connection — fluid flows in a straight line from the threaded port through the barb. The Elbow type turns the flow 90°, which is useful when space is limited or when you need to route tubing along a surface rather than away from it perpendicularly.

For low-pressure, static applications (such as gravity-fed water lines or aquarium plumbing) the barb alone typically holds the tubing securely. For applications with higher pressure, vibration, or frequent disconnection, adding a worm-drive or spring hose clamp over the tubing at the barb is recommended to prevent pull-off.

Yes. The plastic body does not rust or corrode when used with water, air, or other non-aggressive fluids. However, plastic fittings are not suitable for use with strong solvents, concentrated acids, or fuels — check chemical compatibility with the specific plastic grade before use in chemical-handling applications.

These connectors are commonly used with water, air, and mild aqueous solutions. They are not rated for petroleum-based fuels, strong solvents, or high-temperature steam. If you are unsure about compatibility with a specific fluid, contact us to confirm the plastic material grade before ordering.

The threaded end can be unscrewed and reinstalled multiple times without issue. The barbed end can also be reused, though repeated insertion and removal of tubing may gradually reduce the grip of the barb. For critical connections, replacing the fitting after several reuse cycles is advisable.

Thread the male end into the female port by hand first, then tighten with a wrench — do not overtighten plastic threads. Soften the end of flexible tubing briefly in warm water if needed to ease it over the barb, then push firmly until the tubing seats past the first barb ridge. Add a hose clamp if required by your application.