Bronze hose union, barb x barb — no thread (B1)
TECTUL · Dispatch across Colombia · Exports to Central & South America
Straight union in brass bronze with a barbed spigot on both ends, no thread on either, to splice two flexible hose runs of the same diameter or repair one after a cut. Each end is secured with its own clamp.
IMPORTANT: reference data — may differ from the physical product; verify with an advisor before buying.
SKU VT-RAC-B1UNION (B1 hose union) · 5 diameters 3/16″–1/2″ · sold by the unit
1. Technical specifications
| Size | D1 [mm] | D2 [mm] | L [mm] | Weight [g] |
|---|---|---|---|---|
| 3/16″ | Confirmed on quotation | 5 | ||
| 1/4″ | Confirmed on quotation | 7 | ||
| 5/16″ | 3.5 | 6.0 | 48.0 | 9 |
| 3/8″ | Confirmed on quotation | 12 | ||
| 1/2″ | 5.0 | 7.8 | 40.0 | 24 |
IMPORTANT
This technical data sheet is a reference guide to the properties of this product type; it is not a quality certificate for the product you are buying. The measurements, dimensions and physical or geometric characteristics of the product supplied may vary by manufacturer, heat and lot, and may even fall outside the cited standards. If any of these figures is critical to your design or build, verify it with one of our advisors against the physical product or the lot's mill certificate, so you can be fully certain of what you are buying. · Original data sheet: tectul.com/en/conduccion-de-fluidos/racores-y-acoples/ficha-tecnica-b3-union-manguera-bronce.html
Only unambiguously legible values from the source table are published (March 2022 revision).
| Product | Straight bronze union, barbed spigot on both ends, no thread |
| Material | Cast brass bronze |
| Connection | Barbed spigot + clamp on each end |
| Commercial range | 3/16″ to 1/2″ barb diameter |
2. Frequently asked questions
Is it suitable for repairing a cut hose?
Yes, that is its typical use: cleanly cut both damaged ends, insert each into one end of the union and secure with a clamp.
Can I use it between two different hose diameters?
No; this part has the same barb diameter on both ends. For different diameters you need a reducing union, which is not documented in this sheet.
3. Application notes
Feasibility
Suitable for repairing or splicing low-pressure flexible water or air hose of the same diameter on both ends.
Installation
Cut the hose ends perpendicular and clean, insert fully onto each barb and secure with a clamp sized to the hose's actual outer diameter.
Design
Confirm exact D1/D2/L before detailing tight installation drawings for sizes marked "confirmed on quotation". Actual working pressure is limited by the hose, not by the bronze body.
4. Technical notice and limitation of liability
The pressures, dimensions, weights and other characteristics in this sheet are theoretical calculation values obtained from nominal properties published in the standards cited (ASME B36.10-2022, ASME B31.3-2024, ASTM A106/A106M-19a, ASTM A53/A53M-24, API Spec 5L 46th ed.). They guide selection; they are not a certificate of conformity for any given lot.
The actual behavior of each lot varies with manufacturing — wall tolerance (up to −12.5%), out-of-roundness, residual stresses — and with the raw material — chemical composition within the ranges the standard allows, heat-to-heat differences. To certify a lot, the tests defined by its product standard are required: tensile test, flattening test and hydrostatic test, documented in the manufacturer's mill test certificate (MTC), which TECTUL supplies upon request; testing of the lot in an independent laboratory can also be arranged.
These values must not be used as the sole criterion in critical or safety applications, or wherever failure of the line may compromise people, property or the environment: in such cases the design belongs to the project's responsible engineer under the applicable code (ASME B31.3, B31.1 or the one governing the installation), with the design temperature, corrosion allowance and load cases of the actual service. Before deciding with these data, consult our technical team.
Sources
- Ficha de fabricante "B1 - Union Manguera" (catálogo de accesorios de manguera de bronce, IMR/TECTUL, revisión marzo 2022): D1, D2, L y peso para 5/16″ y 1/2″; peso para 3/16″, 1/4″ y 3/8″
This data sheet is the property of TECTUL, part of the Industrias IMR group. Reproduction without attribution is prohibited. Original document and updates: tectul.com/en/conduccion-de-fluidos/racores-y-acoples/ficha-tecnica-b3-union-manguera-bronce.