The EVH-9 electrovalve array can
work with tubing of different types, like silicone, tygon or
C-Flex as long as the outside diameter should not exceed 2.5mm. Our preference is C-Flex tubing
(ID: 0.5mm, OD: 2.1mm, Reference: COLE PARMER #6424-59 or BIOBLOCK
SCIENTIFIC #M71195). C-Flex tubing is well adapted to our electrovalves and is much less permeable to air
than, for example, silicon tubing. This tubing also gives a best compromise between high flexibility
(squeeze factor) and low permeability to air. This tubing is connected by
a simple insertion into the output tubing of the manifold.