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Burette Stopcock – Straight Bore, PTFE Key

  • Straight Bore Design: Enables smooth, unrestricted liquid flow for accurate regulation and consistent dispensing performance.
  • PTFE Key: Provides excellent chemical resistance, smooth operation, and a dependable leak-resistant seal.
  • Borosilicate 3.3 Glass: Delivers high thermal resistance, chemical durability, and long service life.

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Description

Specification

This Burette Stopcock with Straight Bore and PTFE Key is designed to provide accurate manual control of liquid flow in burettes and laboratory glassware.

It enables smooth starting, stopping, and regulation of dispensing rates, supporting consistent dropwise delivery during titrations, analytical procedures, and routine liquid handling applications.

Intended Use & Applications

Suitable for primary and secondary school laboratories, universities, research facilities, and analytical laboratories, this stopcock is designed for precise liquid regulation in burettes and laboratory assemblies. It supports titration procedures, controlled liquid transfer, and other applications requiring accurate flow management.

Accurate Flow Control & Consistent Results

The straight-bore design promotes smooth, unrestricted liquid flow, allowing precise adjustment of flow rates during dispensing. This responsive control helps improve repeatability and accuracy across educational, analytical, and research-based laboratory tasks.

The precision-fitted PTFE key provides reliable operation with a secure, leak-resistant seal. This helps minimise unintended flow and reduces the risk of drips during use, improving confidence and consistency throughout laboratory procedures.

Chemical Resistance & Thermal Durability

Manufactured from Borosilicate 3.3 glass, this stopcock offers excellent resistance to chemical exposure and thermal stress. The durable glass material supports long-term use in demanding laboratory environments while maintaining performance and reliability.

The PTFE key delivers outstanding chemical resistance and smooth rotational movement, making the stopcock suitable for use with a broad range of laboratory reagents and solutions while helping to reduce contamination risks.

  • Straight Bore Design: Enables smooth, unrestricted liquid flow for accurate regulation and consistent dispensing performance.
  • PTFE Key: Provides excellent chemical resistance, smooth operation, and a dependable leak-resistant seal.
  • Borosilicate 3.3 Glass: Delivers high thermal resistance, chemical durability, and long service life.
  • Precise Flow Regulation: Allows accurate start, stop, and fine adjustment of liquid delivery during laboratory procedures.
  • Reusable Design: Suitable for repeated laboratory use, helping reduce replacement costs.
  • Standards Compliant: Produced to DIN ISO 3585, DIN 12541-1, ASTM E-438 Type I Class A, and ISO 9001 requirements.
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