Specification :

Pressmatic PP Liquid Dispensers, PD-P
Simple click stop ring for fast and accurate volume setting
Fully supported delivery tube with drip cap
Fully autoclavable
Supplied with three adapters to fit most common laboratory bottles
Clear viewing window to check priming
Accuracy - < 0.7%
Repeatability - < 0.1%

For routine dispensing in the laboratory the new Pressmatic PP range offers economy without compromising on performance. Supplied with factory calibration certificate for guaranteed accuracy the Pressmatic PP is ideal for dispensing many common liquids; dilute acids, buffers, polar solvents, biological solutions.

Based on a polypropylene valve block with glass piston and barrel the Pressmatic PP is not suitable for dispensing the following liquids: Concentrated or oxidizing acids, e.g. concentrated sulphuric acid and Non-polar solvents, e.g. hydrocarbons, halogenated hydrocarbons.

Pressmatic R Liquuid Dispensers, PD-R
New ergonomic design with recirculation valve
Chemically resistant and non-sticking ceramic piston
Simple & accurate volume setting
Fully rotational on bottle for optimum positioning
Accuracy within 0.7% . Supplied with calibration certificate
Can be autoclaved at 121° C

The Pressmatic dispensers have an innovative design that maximises safety and ease of use. A recirculation valve means that reagent used for priming is delivered straight back into the bottle making it safer and less wasteful. Once the dispenser has been fitted to the bottle, it is fully rotational for optimum positioning. The precise volume setting is by a self-locking rotating ring that is robust, easy to use and will not move during operation. The piston is manufactured from high-grade ceramic eliminating abrasion and sticking. The liquid pathway is made up of glass, PTFE and ceramic to give outstanding chemical resistance. The whole unit can be autoclaved without dismantling. Each Pressmatic dispenser is supplied with 3 x bottle adapters to fit most types of vessel and a works calibrated certificate. A full range of spare parts are available.

Pressmatic HF Liquid Dispensers, PD-R/ HF
New ergonomic design with recirculation valve
Ceramic / PTFE liquid pathway
Simple & accurate volume setting
Fully rotational on bottle for optimum positioning
Accuracy within 0.7%
Drip cap

The new Pressmatic HF dispenser has been specially designed for use with highly aggressive liquids such as hydrofluoric acid. A recirculation valve means that reagent used for priming is delivered safely back into the bottle. The piston, barrel, valve block and tubes are manufactured from chemically inert ceramic and PTFE. Once the dispenser has been fitted to the bottle, it is fully rotational for optimum positioning. The precise volume setting is by a self-locking rotating ring that is robust, easy to use and will not move during operation. The unit is simple to take apart for cleaning purposes and all valves are fully replaceable. Each Pressmatic HF dispenser is supplied with 3 x bottle adapters and a works calibrated certificate.