Components Made in PEEK

VALVES IN PEEK

Métro-Mesures has developed with LMM a serial of components for sampling a big deep in PEEK, which are, thus, biocompatible. To use the material PEEK in all parts which are in contact with the solution used makes the component We manufacture the following components (all components are compatible with PEEK tubes and connections of dimension 1/16"): High pressure valves (5000 Psi). Single, double or multiple are available. At request we can develop almost any kind of model. On-line filters. Christian Tamburini Diagrammatic representation of the high-pressure bottles (HPB) in configuration of samples filling. The filling valve is set off by the scientist on board the ship. When the filling valve is opened, the natural hydrostatic pressure pushes down the floating piston and the seawater enters into the upper chamber of 2 HPBs. The distilled water is flushed out from the lower chamber of the syringes to the exhaust tanks, through a nozzle that acts as an hydraulic brake (Bianchi et al. 1999b). During retrieval, hydrostatic pressure is maintained thanks to a check valve that avoided any decompression within the "high pressure" HPB, in contrast to the "decompressed" HPB that were devoid of check valve.

Simulation going down of particles in big deep

New Metro - mesures developed in narrow collaboration with the LMM (Christian TAMBURINI) a . This module permits to simulate the movements of the particles or bacteria in the depths or big depths. It permits to recreate the natural pressure (gravitational coming down) or the movements of convection (currents) on the particules. We are capable to recreate conditions of coming down bathimétric of the order of 0,3 meters by hour or very fast decompression, several hundreds of meters seconds. The depth so recreates can reach 4000 meters.     This module of simulation of coming down of particles can be coupled at the cell of culture and transfer permitting to achieve some withdrawals in a chemically inert surrounding wall without decompression.   It is possible with the bottles of withdrawal HPSS hyperbare that we manufacture to achieve a withdrawal à then very big depth, to bring back it in surface without decompressing it, to transfer it in the simulator to study a withdrawal in in - situ conditions

Pumps

Pumps: With a very low flow (down to 0.02 mL/hour) Encapsulated Specific