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Burette Stopcocks, PTFE Key, Straight Through

Burette Stopcocks, PTFE Key, Straight Through

Product Code : JA-SCSAS-1658

Burette Stopcocks, PTFE Key, Straight Through (product code JA-SCSAS-1658) are the flow-control taps used on burettes. This burette stopcock has a borosilicate glass barrel and a PTFE key, which gives high resistance to chemical attack. The barrel is highly polished and the key is self-lubricating, so the stopcock turns smoothly without stopcock grease, which avoids grease contaminating titration results. Laboratories order them for new burettes and as spares for repairs.

Specifications

These burette stopcocks combine a highly polished borosilicate glass barrel with a self-lubricating PTFE key and a straight-through bore. No grease is needed, and PTFE resists attack by the acids, bases and solvents used in titration.

ProductBurette Stopcocks, PTFE Key, Straight Through
SKU / Product codeJA-SCSAS-1658
TypeBurette stopcock, straight through
BarrelBorosilicate glass, highly polished
KeyPTFE, self-lubricating
LubricationNo stopcock grease needed

Applications of the burette stopcock

Burette stopcocks control the drop-by-drop delivery of titrant, so a smooth, leak-free key is essential for accurate end points.

  • Fitting to new burettes during glassblowing or assembly
  • Replacing broken or seized stopcocks on existing burettes
  • Acid-base, redox and complexometric titrations in school and college laboratories
  • Analytical and quality-control laboratories that titrate routinely

Scope of supply and ordering

The listing covers straight-through burette stopcocks with PTFE keys in the quantity you order. Accessories, spares and quantities are confirmed on the quotation.

MOQ, lead time and packing are confirmed on each quotation for quantity and destination. JaincoLab supplies single laboratories, glassblowing workshops, bulk spares orders for colleges and institutes, and export orders to Africa, the Middle East and South and South-East Asia.

Frequently asked questions

Does the stopcock need grease?
No. The PTFE key is self-lubricating and the barrel is highly polished.

What are the barrel and key made of?
The barrel is borosilicate glass and the key is PTFE.

Is a glass key version available?
Yes. Burette Stopcocks, Glass Key, Straight Through are listed in the same category.

Related products

Other stopcocks in the same category:

Browse the Screw Caps, Stoppers and Stopcocks category, part of the range from JaincoLab, a laboratory glassware manufacturer in India.

Request a quote

To order Burette Stopcocks, PTFE Key, Straight Through, send the quantity and delivery destination through the JaincoLab contact page or email [email protected]. Buying under a laboratory tender? Use our tenders page.

Last updated: September 2026

   
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Office Address

Jain Scientific Suppliers
2475-84, Hargolal Road,
Ambala Cantt, Haryana, India

[email protected]

+91-85699-09696

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