Burette with Screw Type Needle Valve PTFE Stopcock

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Burette with Screw Type Needle Valve PTFE Stopcock

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Burette with Screw Type Needle Valve PTFE Stopcock Specification

Speed Range
Manual Operation

Shape
Cylindrical

Temperature Resistance
Up to 250C

Glass Type
Borosilicate Glass

Display Type
Graduated Scale on Tube

Accuracy
Class A (as per DIN/ISO standards)

Control Type
Manual Control via Screw Needle Valve

Type
Burette with Screw Type Needle Valve and PTFE Stopcock

Dimension (L*W*H)
Varies (e.g., standard length 500 mm for 50 ml capacity)

Equipment Type
Laboratory Glassware

Equipment Materials
Borosilicate Glass, PTFE (Polytetrafluoroethylene)

Material
Borosilicate Glass with PTFE Stopcock

Application
Volumetric liquid dispensing and titration in laboratories

Capacity (Ltr)
0.05 L (for 50 ml burette)

Autoclavable
Yes, up to 121°C

Zero Point
Polished or Smooth

Compliance
DIN/ISO 385 Standards

Capacity Range
10 ml, 25 ml, 50 ml, 100 ml

Color Code
Transparent with Blue/White Graduation

Packaging
Individually Packed or as per customer requirement

Graduation Interval
0.1 ml (for 50 ml burette)

Stopcock Material
PTFE (Polytetrafluoroethylene)

Reusability
Reusable

Titration Control
Needle Valve for Precise Flow Adjustment

About Burette with Screw Type Needle Valve PTFE Stopcock

Burette with Screw Type Needle Valve PTFE Stopcock

Burette with Screw Type Needle Valve PTFE Stopcock. Burettes meet ASTM E-287 Class A specification & USP standard with Individual work certificate, Serially numbered.

Cap. ml.

Sub. Div. ml.

Tolerance (ml)

0.05

0.02

0.10

0.03

0.10

0.05

Precision Design for Reliable Titrations

Each burette is engineered with a screw-type needle valve and PTFE stopcock, providing effortless control over liquid flow during titration. Borosilicate glass construction ensures thermal and chemical durability, making the burette suitable for a variety of laboratory environments. The clearly marked graduated scale and smooth-polished zero point facilitate accurate readings and consistent results in every use.

Versatile Capacities with High-Visibility Gradations

Available in multiple capacities, including 10 ml, 25 ml, 50 ml, and 100 ml, these burettes cater to a range of volumetric analysis requirements. Transparent glass with contrasting blue or white graduations guarantees easy reading and precise measurement, supporting both educational demonstrations and professional laboratory titrations.

FAQs of Burette with Screw Type Needle Valve PTFE Stopcock:

Q: How does the screw-type needle valve enhance titration control in this burette?

A: The screw-type needle valve provides extremely precise manual adjustment of liquid flow. This allows for finer titration, minimizing overshoot and improving the accuracy of endpoint detection during volumetric analysis.

Q: What materials are used in the construction of this burette, and what benefits do they offer?

A: The burette is constructed from borosilicate glass and features a PTFE stopcock. Borosilicate glass is resistant to thermal shock and most chemicals, while PTFE offers exceptional chemical resistance and smooth operation, preventing leaks and ensuring long lifespan.

Q: When should I consider using this burette with PTFE stopcock in my laboratory?

A: This burette is ideal when high chemical resistance and precise control over liquid dispensing are essential, such as in quantitative titrations and volumetric analyses in research, industrial quality control, and educational laboratories.

Q: Where can these burettes be used effectively?

A: They are suitable for use in academic, research, pharmaceutical, industrial, and chemical laboratories where precise volumetric liquid dispensing and titration are routinely performed.

Q: What is the process for cleaning and sterilizing this burette?

A: The burette is autoclavable up to 121C, allowing for safe and efficient sterilization. After each use, clean with an appropriate laboratory glassware cleaner, rinse thoroughly, and autoclave if required by your protocols.

Q: How is accuracy ensured in the measurement and titration process with this burette?

A: The burette is manufactured to Class A accuracy as per DIN/ISO 385 standards. It features high-visibility graduated scales and a smooth zero point, minimizing parallax errors and supporting precise readings.

Q: What are the primary benefits of using a burette with a PTFE stopcock compared to traditional glass stopcock models?

A: PTFE stopcocks provide superior chemical resistance, smoother operation, reduced risk of leakage, and a longer service life. This leads to more reliable titrations and lower maintenance requirements compared to traditional glass stopcocks.

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