Hosetail Tee Connector Fittings T-Piece Barbed Male BSP 1/8"-3/4" Air Water Fuel

Measure the outer diameter of the male thread on your existing fitting or pipe, then match it to the BSP standard: 1/8" BSP has an OD of approximately 9.7mm, 1/4" BSP is approximately 13.2mm, 3/8" BSP is approximately 16.7mm, 1/2" BSP is approximately 20.9mm, and 3/4" BSP is approximately 26.4mm. If you are unsure, use a thread gauge or consult the specification of your existing valve or manifold.

The barb size should match the inner diameter (ID) of your flexible hose, not the outer diameter. Measure the bore of your hose — for example, if your hose has a 6mm inner bore, select the 6mm barb option. A correctly sized barb will require a firm push to seat the hose and will grip securely without the need for a clamp in low-pressure applications, though a hose clamp is recommended for pressurized systems.

These fittings are listed as compatible with fuel media. However, suitability depends on the specific fuel type, concentration, temperature, and pressure of your application. For petrol (gasoline), diesel, and similar hydrocarbon fuels at low to moderate pressures, these fittings are generally appropriate. For aggressive fuels, high-pressure fuel injection systems, or regulatory-compliant installations, confirm material compatibility with your specific fuel before use.

BSP parallel threads (BSPP) require a sealing method such as PTFE tape, thread sealant compound, or a bonded seal washer to achieve a leak-free joint. BSP taper threads (BSPT) can seal on the thread taper itself but still benefit from PTFE tape for reliability. Apply 2–3 wraps of PTFE tape in the direction of the thread before assembly. Do not overtighten — hand-tight plus 1–2 turns with a wrench is typically sufficient for most BSP connections.

Yes, these hosetail tee connectors are rated for air media. For compressed air applications, ensure the working pressure of your system does not exceed the fitting's rated pressure (see variant options or contact us to confirm). Always use appropriate hose clamps on the barbed ports when the system operates under pressure, and inspect connections regularly for signs of wear or leakage.

A barbed fitting relies on the hose being pushed over a ridged (barbed) profile, which grips the hose inner wall to resist pull-off. The connection is typically secured with a hose clamp for pressurized applications. A push-fit fitting uses an internal collet and O-ring mechanism that locks onto the outer diameter of rigid or semi-rigid tubing without additional clamps. These hosetail tee connectors are barbed fittings, designed for use with flexible hose.

One piece provides a complete T-piece fitting with one BSP male thread port and two barbed hosetail ports — sufficient for a single tee junction. If you are building a system with multiple branch points, select the appropriate pack quantity (2, 4, 5, 10, or 20 PCS) to reduce per-unit cost and ensure you have spares on hand for future maintenance.