Bel-Art Stopcock 2-Piece for ⅜ in. Tubing – Polyethylene F30915-0000

Description

Product Overview

The Bel-Art 2‑piece stopcock is engineered for ⅜‑in. (3/8 inch) tubing applications, delivering dependable fluid control in demanding laboratory and industrial environments. Constructed from high‑grade polyethylene, the body resists chemical degradation while maintaining flexibility for easy handling. The snap‑together design eliminates the need for tools, allowing technicians to assemble the stopcock quickly and achieve a leak‑free seal with minimal effort.

Key specifications include a maximum pressure rating of 48 kPa (7 psi) and a water column capacity of 489 cm, ensuring consistent performance across a range of fluid viscosities. Barbed connections provide a secure, threaded‑free interface that grips tubing firmly, reducing the risk of disconnection under pressure. The quarter‑turn mechanism offers intuitive shut‑off control, enabling precise regulation of flow with a simple rotation.

Packaging dimensions of 4.49 × 2.6 × 0.98 inches and a lightweight 0.78 oz design make the stopcock easy to store and ship. Since its introduction in 2009, the product has earned a solid reputation, reflected in a 5‑star rating from verified customers and a ranking among the top Luer stopcocks on major e‑commerce platforms.

Usage

This stopcock is ideal for a variety of settings, including biomedical research labs, pharmaceutical manufacturing, and chemical processing facilities. Its compatibility with standard ⅜‑in. tubing makes it a versatile choice for connecting reservoirs, reactors, and sampling lines where precise flow interruption is required.

Technicians appreciate the snap‑together assembly for rapid setup during time‑critical procedures, such as sample preparation or equipment calibration. The barbed connections simplify installation on both flexible and semi‑rigid tubing, reducing the likelihood of leaks that could compromise experimental integrity or product quality.

Because the stopcock operates effectively at pressures up to 7 psi, it is suitable for low‑pressure applications such as perfusion systems, dialysis circuits, and controlled dosing pumps. Its chemical‑resistant polyethylene construction ensures longevity even when exposed to solvents, acids, or bases commonly encountered in laboratory workflows.

Why Choose Us

Choosing the Bel-Art stopcock means selecting a product backed by decades of expertise in fluid handling components. Bel-Art Products is recognized for rigorous quality control, and each stopcock undergoes thorough testing to verify pressure tolerance, seal integrity, and material durability before leaving the factory.

Our commitment to customer satisfaction extends beyond the point of sale. We provide responsive technical support, detailed installation guides, and a clear return policy to address any concerns promptly. This after‑sales service ensures that users can rely on the stopcock for long‑term projects without interruption.

Furthermore, the design emphasizes ease of use without sacrificing performance. The intuitive quarter‑turn operation reduces training time, while the snap‑together construction minimizes the risk of assembly errors. These features collectively deliver a cost‑effective solution that does not compromise on reliability or precision.

Key Features

• Polyethylene body provides chemical resistance and durability for long‑term use.
• Snap‑together assembly creates a secure, leak‑free seal without tools.
• Barbed connections ensure quick, firm attachment to standard ⅜‑in. tubing.
• Quarter‑turn shut‑off delivers precise flow control with minimal effort.
• Responsive customer support and clear documentation for hassle‑free installation.

FAQ

What tubing sizes are compatible with this stopcock?

The stopcock is specifically designed for ⅜‑in. (3/8 inch) tubing, which is a common standard in laboratory and industrial fluid systems. It fits both flexible and semi‑rigid tubing types that match this inner diameter.

Can the stopcock handle solvents or aggressive chemicals?

Yes. The polyethylene construction is resistant to a wide range of chemicals, including many acids, bases, and organic solvents. However, for extremely aggressive chemicals, it is recommended to verify compatibility with the specific solvent in use.

Is the stopcock suitable for high‑pressure applications?

The device is rated for a maximum pressure of 48 kPa (7 psi). It is ideal for low‑pressure applications such as perfusion, dialysis, and controlled dosing. For higher‑pressure needs, a different model with a higher rating should be selected.

How do I install the stopcock correctly?

Simply snap the two pieces together until you feel a firm click, ensuring the barbed ends are aligned with the tubing. Insert the tubing onto the barbs, push firmly until the tubing is fully seated, and rotate the knob a quarter turn to close the flow. No additional tools are required.

What warranty or support does Bel-Art provide?

Bel-Art offers a limited warranty covering manufacturing defects and provides technical assistance through its customer service team. Users can contact support for installation guidance, troubleshooting, or replacement parts if needed.