Funnels

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Dispensing funnel for powdered substances. With cone NS 29/32, NS 29/32 socket, NS 14,5/23 side socket....

Cylindrical shape. With interchangeable PE stopper and stopcock with key as indicated, incl. retaining device.
Graduated for reading the approx. volume.
Two types are available:

• With solid glass key stopcock
• With PTFE key stopcock

This filter funnel, which is designed for normal and low pressure, is made of PTFE and PFA, making it resistant to almost all chemicals. It does not leave any trace elements in the medium to be filtered. The vacuum connection is a multi-stepped tubing ferrule with sealing screw, adjustable to suit the most common vacuum tubing bores (6 and 8 mm). The NS 29/32 socket provides a perfectly tight seal onto a similarly socketed, round-bottom flask made of PTFE, PFA or glass (please note vacuum compatibility). Supplied without membrane filter. Suitable for 47 mm diameter membranes, filter area 13.8 cm², sample funnel volume: 125 ml....

Rubber Spacers, made of natural rubber (NR). Conical, to fit filter funnels or crucibles into suction flasks. Durometer 40 Shore A...

Straight tube outlet....

Borosilicate glass with acrylic support plate for filter paper. Can be dismantled quickly for cleaning. Dimension given is the filter paper size required....

• funnel volume 60 ml
• for filter 25 mm diameter

Designed specifically for analytical chemistry. Each size takes a standard size filter paper. Body of funnel is exactly 60° angle. Provided with external and internal ribs. Autoclavable. Food-safe....

With suspension eyelet. Tough, robust, general purpose funnels suitable for a wide range of liquids. Upstand on rim to reduce possible overflow. Ribbed on outside to eliminate back pressure....