Burettes with PTFE Needle Valve Stopcock
Product Code : EL-GB-10172
Lab Glassware Manufacturer manufactures and exports Burettes with PTFE Needle Valve Stopcock from its production base in Ambala, Haryana, in continuous operation since 1982, supplying school and college science laboratories, university research departments, and export buyers that have recently included institutions in Nepal, Bangladesh and Sri Lanka — part of a wider base of enquiries from across South Asia.
Quick answer: This is a borosilicate glass burette with blue-print graduation and a PTFE needle-valve stopcock, which gives finer control over flow rate than a standard key stopcock, useful for titrations needing very slow, controlled addition near the endpoint.
Burettes with PTFE Needle Valve Stopcock — Specification
| Feature | Detail |
|---|---|
| Material | Borosilicate glass |
| Stopcock | PTFE needle-valve stopcock |
| Print colour | Blue enamel graduation |
| Standards | Manufactured to align with ISO 385 (Laboratory glassware – Burettes) and ASTM E287 (Standard Specification for Laboratory Glass Burets) |
Why a Needle-Valve Stopcock
A needle-valve design lets the operator fine-tune flow rate more precisely than a standard quarter-turn key stopcock, which is useful for titrations that need very slow, controlled addition as the endpoint approaches. Like other PTFE stopcocks on this site, it does not need grease and resists attack from most laboratory reagents. For a standard key-stopcock version, see Burettes with PTFE Key Stopcock.
Frequently Asked Questions
What is a needle-valve stopcock for?
It allows finer control over the flow rate than a standard key stopcock, useful for slow, controlled addition near a titration endpoint.
Is a standard key-stopcock version available?
Yes, see Burettes with PTFE Key Stopcock.
Does the stopcock need grease?
No, PTFE stopcocks do not need grease and resist attack from most laboratory reagents.
What capacity is available?
Send your required capacity with your enquiry so a quotation can be prepared against the correct specification.
Is this suited to student laboratories?
It can be, though its main benefit — finer flow-rate control — is most useful for titrations requiring precise, slow addition near the endpoint.
Do you export this burette outside India?
Yes, burettes are supplied to institutional and distributor buyers outside India alongside other titration equipment. Confirm packing and quantity requirements at enquiry stage.
Related Products
Other burettes and burette accessories from Lab Glassware Manufacturer: Burettes with PTFE Key Stopcock, Burettes with PTFE Key Stopcock Schellbach Stripe, Burette Brush, Burette Clamp Aluminium.
Request a Quote
Ready to order Burettes with PTFE Needle Valve Stopcock for your laboratory, institutional or export order? Contact Us for a quotation, or visit the Tenders page for bulk and institutional procurement.
Last updated: September 2026.