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Pressure Equalising Funnels, Pear Shape

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Pressure Equalising Funnels, Pear Shape Specification

Shape
Pear Shape

Glass Type
Borosilicate

Accuracy
Accurate volume graduations wherever marked

Control Type
Manual stopcock operation

Temperature Resistance
Up to 300C (typical for borosilicate glass)

Type
Pressure Equalising Funnels

Equipment Type
Laboratory Glassware

Equipment Materials
Borosilicate Glass

Material
Borosilicate Glass

Application
Laboratory liquid transfer and separation; Uniform pressure equalization during addition of reagents

Capacity (Ltr)
Available in 25 ml, 50 ml, 100 ml, 250 ml, 500 ml, 1000 ml (varies by model)

Color
Clear/Transparent

Brand Compatibility
Compatible with standard laboratory glassware brands

Graduation Marks
Clear, durable, acid and alkali resistant (where provided)

Chemical Resistance
Excellent against most laboratory chemicals

Autoclavable
Yes

Compliance
ISO and ASTM standards (where applicable)

Stopcock Material
Glass or PTFE (Polytetrafluoroethylene)

Joint Type
Standard ground glass joint (Borosilicate, various sizes)

About Pressure Equalising Funnels, Pear Shape

Pressure Equalising Funnels, Pear Shape

Pressure Equalising Funnels, Pear Shape with Socket, Glass Stopcock & stem with cone.

Capacity

Socket

Cone

14/23

100

19/26

250

19/26

250

24/29

500

19/26

500

24/29

Precision and Durability for Laboratory Applications

The pear-shaped pressure equalising funnels are built with robust borosilicate glass or high-grade PTFE, ensuring both resilience and chemical resistance. Their design facilitates uniform pressure equalization, crucial for the safe addition of reagents during titration and separation processes. With a manual stopcock, users maintain exact control over liquid transfer, reducing procedural errors and enhancing experimental accuracy.

Versatile Compatibility and Easy Integration

Equipped with standard ground glass joints, these funnels seamlessly integrate with widely used laboratory glassware. Clear, permanent graduations make precise volume measurement straightforward, supporting both educational and advanced research laboratories. Their autoclave compatibility ensures easy sterilization, promoting safe and repeated usage.

FAQs of Pressure Equalising Funnels, Pear Shape:

Q: How do pressure equalising funnels facilitate safe reagent addition in laboratory procedures?

A: These funnels are designed with a narrow side arm for pressure equalisation and a manual stopcock, enabling gradual and controlled reagent addition. This system prevents sudden pressure build-up and minimizes the risk of splashing or uncontrolled reactions.

Q: What are the material and chemical resistance advantages of these funnels?

A: Constructed from high-quality borosilicate glass or PTFE, these funnels exhibit excellent resistance to acids, alkalis, and most laboratory chemicals. Their durability ensures long service life even under harsh laboratory conditions.

Q: When should I choose a PTFE stopcock over a glass one?

A: PTFE stopcocks are ideal when working with particularly aggressive chemicals or where non-reactivity and smooth stopcock operation are paramount. For general laboratory applications involving standard reagents, a glass stopcock is often sufficient.

Q: Where can these pressure equalising funnels be used?

A: They are suitable for general liquid transfer, titrations, separations, and reagent additions in research institutes, educational labs, and industrial laboratory settings across India and internationally.

Q: What sizes are available and how do I select the correct capacity?

A: Capacities range from 25 ml to 1000 ml. Selection depends on the total volume of liquid you plan to transfer or separate; choose a funnel that accommodates your maximum anticipated volume with some allowance for mixing or expansion.

Q: Are these funnels compatible with all laboratory glassware?

A: Yes, the standard ground glass joints (various sizes available) ensure that the funnels fit seamlessly with most laboratory flasks, adapters, and other glassware from common laboratory brands.

Q: What are the benefits of using clear, acid- and alkali-resistant graduation marks?

A: Permanent graduations offer accurate visual measurement, improving precision during experiments and ensuring the markings remain legible, even when exposed to harsh chemicals.

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