Materials

The heat exchangers PICKER are manufactured with following building materials, according to families of exchangers. This list is not exhaustive, to refer in the overall plans of the apparatuses to know the possible material combinations for a given family of exchangers. The choice of such or such material is mainly dictated by nature, the temperature and the conditions of circulation of the fluids in the exchangers.

Body

Alloys of aluminium, copper

Covers

Cast iron, bronze

Tiges centrales

Cupro-aluminium

Bundle tubes

Copper, cupro-nickel 90/10

Anodes

Zinc

O rings

Nitrile, Fluorocarbon
(“VITON”), Ethylene-propylene

Plate-tubular

Bronze

Counter-flange

Carbon steel, bronze

Flat joints

Synthetic fibres without asbestos

Baffles

Brass

Screws and bolts

Carbon steel, brass

Shaped joints

Ethylene-propylene

External protection

The heat exchangers PICKER are protected outside from corrosion by means of a reactive primary painting from colour grey. This painting, only intended to ensure the adherence of the later layers (intermediate and/or of completion), is compatible with the majority of the paintings used in industry.