Burettes with PTFE Key stopcock
Product Code : EL-GB-10164
Quick answer: This is a borosilicate glass burette with blue-print graduation and a PTFE key stopcock, which turns smoothly without needing grease and resists attack from most laboratory reagents.
Burettes with PTFE Key Stopcock — Specification
| Feature | Detail |
|---|---|
| Material | Borosilicate glass |
| Stopcock | PTFE key stopcock |
| Print colour | Blue enamel graduation |
PTFE Key Stopcock Advantages
A PTFE key stopcock does not need the grease a glass stopcock typically requires, turns smoothly, and resists attack from most laboratory reagents, which helps keep the stopcock bore clean and free-turning over repeated use. A version of this burette with a Schellbach stripe for easier meniscus reading is also available; see Burettes with PTFE Key Stopcock Schellbach Stripe.
Frequently Asked Questions
Why choose a PTFE stopcock over glass?
A PTFE key stopcock does not need grease, turns smoothly, and resists attack from most laboratory reagents.
Is a Schellbach-striped version available?
Yes, see Burettes with PTFE Key Stopcock Schellbach Stripe.
Does the stopcock need maintenance?
PTFE stopcocks generally need less maintenance than glass stopcocks since they do not require greasing; occasional cleaning and rinsing is recommended.
Is a needle-valve stopcock version available instead?
Yes, see Burettes with PTFE Needle Valve Stopcock for fine flow-rate control.
Related Products
Other burettes and burette accessories from Lab Glassware Manufacturer: Burettes with PTFE Key Stopcock Schellbach Stripe, Burettes with PTFE Needle Valve Stopcock, Burette Brush, Burette Clamp Aluminium.
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Last updated: September 2026.