Você procurou por: inner vessel coils (Inglês - Espanhol)

there is an air supply to the base of the inner vessel on which are placed suitable diffusers.
se suministra aire en la base del recipiente interior, en el que se colocan unos difusores apropiados.

there is a rigid supporting ring made of suitable plastic around the top of the inner vessel, so that there is an effluent space of 0,5 cm between the inner and outer vessels.
hay un anillo rígido de soporte, hecho de un plástico conveniente, alrededor de la parte superior del recipiente interior, de modo que hay un espacio de 0,5 cm para el efluente entre el recipiente interior y el exterior.

it consists of an inner vessel (or liner) constructed from porous polypropylene of 3,2 mm thickness and pore size of approximately 90 μm, the joint being butt-welded. (this makes a more robust unit than that described in paragraph 21 of this chapter, c.10 a).
consiste en un recipiente interior (o revestimiento) hecho de polipropileno poroso de 3,2 mm de espesor y un diámetro de poro de unos 90 μm, con la junta soldada a tope (de esta manera, la unidad es más sólida que la descrita en el punto 21 del presente capítulo, c.10 a).