Treatment and coating of the surface of the materials
Alejandro Martínez, technical director of the Industrial Division of
In these cases no only owe to take into account the type of fluid that will circulate through the pipe but also the conditions of the surroundings where will be installed the group of the valve automated.
One of the most common problems is the superficial alteration that suffer some exposed materials to sour environingingments or salinos as it can be the case of the aluminium, basic prime matter for the manufacture of pneumatics actuators, that depending on the exhibition to this type of environingingments the material of the body of the actuator goes degrading producing precisely ‘oxide of aluminium' that finishes with the inutilización of the team in a short period.
GNP seccionado.
In front of this need of application, Genebre has incorporated to his line of products a pneumatics actuator of the type pinion and zip with the body of aluminium estruido according to ASTM 6005, with anodizado hard like protection to the internal and external corrosion, with fine internal finishing of the cylinder to obtain a low coefficient of friction, and later painted external with painting of polyester in dust with which improves notably the cycle of life of the actuator being exposed to severe environingingmental conditions.
The paintings in dust polyester present excellent characteristic of resistance to the rays UV, absence of caleo, optimum mechanical characteristics, high resistance to the chemical agents and are used in destined products to outsides.
Other important characteristics of this pneumatics actuator are the following:
- Compact design of pinion and double zip that allows a symmetrical assembling, a long cycle of life, as well as a rotation in reverse sense (in this case so alone it is necessary to realizar a simple investment of the pistons).
- Multiple guides in zip and pistons that reduce the friction, with long cycle of life and design anti-expulsion of the axis.
- Design to modulate of the cartridge with spring precargado and revestido for greater versatility, greater hygiene and greater resistance to the corrosion.
- Fixers in stainless steel for a greater resistance to the corrosion.
- Complete compliance with the last specifications: ISO5211, DIN 3337 and NAMUR conferring a big capacity of adaptation and easy setting of electrovalves, finals of career and other accessories.
- Homologation ATEX according to directive 94/9/CE for explosive atmospheres: Category II 2 GD T5 (Zones 1,2 / 21,22).
