Prestolok Reduced Union is a product in the couplings & quick connects family for fluid conduction. 13 sizes published with per-variant price and availability. Price from $ 2.600 COP before VAT.
| SKU | Size | Unit price (from) | Availability | Qty | |
|---|---|---|---|---|---|
| VT-59245-01 | 6 mm x 4 mm | $ 2.600 | In stock | ||
| VT-59245-02 | 8 mm x 4 mm | $ 2.600 | In stock | ||
| VT-59245-03 | 8 mm x 6 mm | $ 2.600 | In stock | ||
| VT-59245-04 | 10 mm x 6 mm | $ 2.600 | In stock | ||
| VT-59245-05 | 10 mm x 8 mm | $ 2.600 | In stock | ||
| VT-59245-06 | 12 mm x 6 mm | $ 2.600 | In stock | ||
| VT-59245-07 | 12 mm x 8 mm | $ 2.600 | In stock | ||
| VT-59245-08 | 12 mm x 10 mm | $ 2.600 | In stock | ||
| VT-59245-09 | 5/16" x 1/8" | $ 2.600 | In stock | ||
| VT-59245-10 | 5/16" x 1/4" | $ 2.600 | In stock | ||
| VT-59245-11 | 3/8" x 1/4" | $ 2.600 | In stock | ||
| VT-59245-12 | 1/2" x 1/4" | $ 2.600 | In stock | ||
| VT-59245-13 | 1/2" x 3/8" | $ 2.600 | In stock |
Prices per size, per unit, before VAT. Confirmed in the quote together with shipping.
| Family | Couplings & quick connects |
| Connection | Other |
| Sales unit | Se vende por Unidades (Unid.) |
| Availability | In stock |
| Factory PDF data sheet | Available from an advisor |
Prestolok Reduced Union for Pneumatic Tube is a TECTUL fluid handling fitting used to connect two pneumatic tubes of different diameter without using thread in panels, machines or auxiliary lines. The lot does not report a single material, so the exact construction must be confirmed when quoting. It differs because it reduces between two tube sizes, unlike a straight Prestolok union of equal diameter. The technical selection reference is push-to-connect fitting for pneumatic tube; if the project requires certification, traceability or standard equivalence, request the technical data sheet before installation. To buy it correctly, it is not enough to ask for “the coupling” or “the fitting”: confirm nominal size, end type, fluid, temperature, seal compatibility, available space and whether the assembly works with hose, tubing, NPT thread, quick coupling, camlock system or panel. We do not publish a single maximum pressure because performance depends on material, seal, temperature, vibration, support, joining method, fluid and commissioning test.
| Actual reported size | Presentation |
|---|---|
| 6 mm x 4 mm | Sold by units (Unit) |
| 8 mm x 4 mm | Sold by units (Unit) |
| 8 mm x 6 mm | Sold by units (Unit) |
| 10 mm x 6 mm | Sold by units (Unit) |
| 10 mm x 8 mm | Sold by units (Unit) |
| 12 mm x 6 mm | Sold by units (Unit) |
| 12 mm x 8 mm | Sold by units (Unit) |
| 12 mm x 10 mm | Sold by units (Unit) |
| 5/16" x 1/8" | Sold by units (Unit) |
| 5/16" x 1/4" | Sold by units (Unit) |
| 3/8" x 1/4" | Sold by units (Unit) |
| 1/2" x 1/4" | Sold by units (Unit) |
| 1/2" x 3/8" | Sold by units (Unit) |
Before using these data in engineering decisions — design, installation or systems with mechanical risk of pressure, rupture, fatigue, impact or water hammer — you must read the Technical notice and limitation of liability at the end of this page.
We dispatch to Bogotá, Medellín, Cali, Barranquilla and all of Colombia. Request a quote via WhatsApp for this Prestolok reduced union for pneumatic tube indicating size, quantity, fluid, connection and use to confirm availability and price.
The price depends on size, material, connection, quantity and availability. At TECTUL we quote using the real installation data to avoid incompatible references.
The Prestolok reduced union changes size; the standard Prestolok union joins two tubes of the same diameter.
Cut both tubes square, confirm which side corresponds to each size and insert until the internal stop is felt.
Send size, quantity, fluid, connection type, a photo if it is a replacement and working conditions when the assembly is critical.
No. Compatibility of the body, seals, gaskets and joining method with the fluid, temperature and line cleanliness must be validated.
Yes. TECTUL dispatches to Bogotá, Medellín, Cali, Barranquilla and other cities in Colombia depending on availability and carrier.
Before using these data in engineering decisions — design, installation or systems with mechanical risk of pressure, rupture, fatigue, impact or water hammer — you must read the Technical notice and limitation of liability at the end of this page.
Modular Hose + Round Nozzle
Prestolok Union
B122 - Brass Hex Nipple
B109 - Brass Male Plug
B60 - Brass Compression SleeveUpdated: July 22, 2026
The dimensions, thicknesses, pressures, temperatures and other characteristics stated in this data sheet are theoretical nominal reference values, compiled from publicly available technical sources: international standards (ASME, ASTM, API, MSS, ISO and NTC, depending on the product) and published engineering literature. They are average approximations intended to guide selection, not a certificate of conformity for any given lot.
Actual values may vary due to conditions inherent to the manufacturing process — dimensional and wall-thickness tolerances (in pipe, typically ±12.5%), surface finish and residual stresses from forming or welding — and to factors inherent to the raw material — chemical composition variations within the ranges allowed by the standard, inclusions or heat-to-heat differences. They may also be affected by in-service events not foreseeable at design time: water hammer, vibration, thermal and mechanical fatigue, corrosion and operating overpressures, which can cause the element to fail before its estimated service life.
To know the certified behavior of a specific lot, TECTUL supplies upon request the manufacturer's mill test certificate (MTC) issued per the product standard; for critical applications, laboratory testing of the lot can also be arranged. In the absence of such certification, the data provided here must not be used as the sole criterion in critical or safety applications, or wherever the integrity of the line may compromise the lives of people or property; in such cases, consult our technical team first.
