Burettes/Feeding Funnel

Burettes and feeding funnels (series LEBFF) are reactor accessories for adding gas, liquid or solid reagents to a laboratory pressure reactor. Burettes meter gas or liquid into the reactor under pressure. Feeding funnels allow fast charging of solids and liquids through the reactor head.

How it works

A burette is a graduated vessel connected to the reactor so that a measured volume of liquid or gas can be added while the reactor is at pressure. Volumes run from 10 to 1,000 ml. Glass burettes are supplied with a protective jacket; a full-metal version with a sightglass is offered for higher pressures. The pressure rating depends on the material, which may be glass, stainless steel or Hastelloy.

The feeding funnel mounts on the reactor head; a funnel with an NS 29/32 connection is shown as an example. It allows solids to be charged into a pressurized reactor under an oxygen-free atmosphere. A pressure feed tank with a long sightglass is shown as a related feeding option.

What is included

• Burette, glass with protective jacket, or full-metal with sightglass
• Feeding funnel with reactor head connection

Specify for your project

• Reagent phase to be added: gas, liquid or solid
• Volume per addition within 10 to 1,000 ml
• Reactor working pressure, to select glass or full-metal construction
• Reagent corrosivity, to select stainless steel or Hastelloy
• Reactor head connection size and type
• Whether charging must take place under an inert atmosphere

This description defines the product family. Guaranteed performance, included hardware, exclusions, interfaces and acceptance criteria are stated only in the project-specific technical proposal and approved datasheet.

Examples

Further accessories for pressure reactors

Buchi has a wide range of accessories for pressure reactors. It helps you to adapt your reactor systems to continuously changing process requirements and operational procedures.