Kartell 228255 Polypropylene Miniature Stopcock, 8mm Tubing Size (Case Of 10)

Description

Product Overview

The Kartell 228255 Polypropylene Miniature Stopcock is a precision‑engineered component built specifically for applications that demand reliable fluid regulation at a small scale. Crafted from high‑grade polypropylene, the stopcock offers a balance of chemical resistance, mechanical strength, and lightweight handling, making it suitable for both laboratory and medical environments where contamination control is paramount. Its compact dimensions—measuring just 2.4 x 0.6 x 1 inches with an outer diameter of 8 mm—allow it to fit into tight spaces while still providing a robust sealing interface for tubing connections.

Designed with an easy‑turn key mechanism, the stopcock eliminates the need for additional lubricants, which can introduce unwanted residues or interfere with sensitive assays. The key engages smoothly with the internal bore, delivering precise flow adjustments without the risk of cross‑contamination. The internal passage is engineered to remain free of grease or particulate buildup, ensuring consistent performance over repeated cycles of opening and closing.

Each package contains ten identical units, providing a cost‑effective solution for laboratories that require multiple stopcocks for parallel experiments, multi‑channel setups, or spare parts inventory. The case dimensions of 7 × 3.5 × 2.6 inches and a total weight of just under 11 ounces make storage and transport straightforward, while the clear labeling of model number DYNCR 228255 assists in rapid identification and inventory management.

Beyond its functional attributes, the Kartell stopcock benefits from the brand’s reputation for quality manufacturing and rigorous testing standards. The product has earned a respectable ranking within the Luer stopcocks category on major e‑commerce platforms, reflecting positive feedback from users who value its durability and ease of use. Whether you are setting up a new fluidic system or replacing worn components, this stopcock delivers the reliability required for critical scientific work.

Usage

In laboratory settings, the stopcock is frequently employed to regulate the flow of reagents, buffers, and samples through microfluidic channels, chromatography columns, and syringe pump assemblies. Its compatibility with standard 8 mm tubing means it can be integrated seamlessly into existing setups without the need for custom adapters, reducing downtime and simplifying system configuration. Researchers conducting titration experiments, enzyme kinetics, or cell culture media exchanges will appreciate the fine control afforded by the smooth turning action of the key.

Medical applications also benefit from the stopcock’s design. It is ideal for use in point‑of‑care diagnostic devices, infusion systems, and sterile fluid delivery lines where precise dosing and rapid response are essential. The polypropylene construction is compatible with a wide range of pharmaceuticals and biological fluids, resisting degradation from common solvents and maintaining integrity under sterilization processes when required.

Field technicians and quality‑control personnel often need reliable components that can withstand transport and variable environmental conditions. The lightweight yet sturdy nature of the stopcock, combined with its grease‑free operation, ensures that it remains functional even after exposure to temperature fluctuations or brief handling shocks. This makes it a practical choice for on‑site testing, mobile labs, and educational demonstrations where equipment durability is a key concern.

Why Choose Us

Choosing the Kartell 228255 stopcock means selecting a product that has been refined through years of industry experience and feedback from scientific professionals. The use of premium polypropylene not only provides chemical compatibility but also contributes to a longer service life compared with lower‑grade plastics that may become brittle or crack over time. This durability translates into lower total cost of ownership, as users can rely on fewer replacements and reduced maintenance.

Our commitment to quality extends beyond the material itself. Each stopcock undergoes a series of functional tests to verify smooth operation, leak‑free sealing, and consistent torque requirements. The easy‑turn key is calibrated to deliver a predictable amount of rotation per unit of flow change, allowing users to develop standard operating procedures with confidence. Moreover, the design eliminates the need for external lubricants, which can be a source of contamination in sensitive assays.

Customer support is an integral part of our service offering. Should you encounter any issues during installation or operation, our technical assistance team is available to provide guidance, troubleshooting steps, and replacement parts if necessary. We also offer documentation that includes detailed specifications, compatibility charts, and best‑practice guidelines to help you maximize the performance of the stopcock in your specific application.

Key Features

• Durable polypropylene construction resists chemicals and wear for long‑term use
• Easy‑turn key provides smooth operation without the need for lubricants
• Grease‑free bore prevents blockage and maintains consistent flow control
• Compact 8 mm tubing size fits standard laboratory and medical tubing systems
• Comes in a case of ten, offering cost‑effective bulk supply and spare parts

FAQ

What types of fluids can be used with this stopcock?

The stopcock is compatible with most aqueous solutions, buffers, solvents, and biologically relevant fluids commonly used in laboratory and medical settings. Its polypropylene body resists degradation from acids, bases, and many organic solvents, but it is advisable to verify compatibility with highly aggressive chemicals before prolonged exposure.

Is the stopcock sterilizable?

Yes, the stopcock can be sterilized using standard methods such as autoclaving at 121 °C for 15 minutes, provided that the tubing and any attached components are also rated for those conditions. The grease‑free design ensures that sterilization does not leave residues that could affect subsequent fluid flow.

Can the stopcock be used with tubing sizes other than 8 mm?

The stopcock is specifically sized for 8 mm outer‑diameter tubing to ensure a secure fit and optimal sealing performance. While it may physically accommodate slightly smaller tubing, using the recommended size guarantees the intended flow control accuracy and prevents leaks.

What is the warranty or guarantee on this product?

We stand behind the quality of the Kartell 228255 stopcock with a limited one‑year warranty covering manufacturing defects. If you experience any issues related to material integrity or functional performance within this period, contact our support team for a replacement or refund.

How does the easy‑turn key differ from other stopcock designs?

The key is engineered to engage directly with the internal mechanism, providing a low‑torque, high‑precision turning experience. Unlike designs that require additional force or lubrication, this key operates smoothly out of the box, reducing wear on the internal threads and extending the lifespan of the component.