CALEFFI DISCAL 551 Series Instrucciones de instalación, puesta en marcha y mantenimiento - Página 6

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Construction details

DISCAL

air separators are designed to allow

maintenance and cleaning without having to

remove the valve body from the pipework.

All DISCAL

versions) come standard with a bottom

connection for installing a drain valve. All

internal air release control components are

fully accessible in all the models.

The automatic air vent, located at the top of the

units, has a long

chamber for the

movement of the

float. This feature

p r e v e n t s a n y

debris present in

the water from

r e a c h i n g t h e

sealing seat. A

s t a i n l e s s s t e e l

float guide pin (3)

prevents the float

from sticking due

to accumulating

air separators (except vertical

59756

residue in the flowing fluids, even when the

DISCAL

vertical.

A replacement air vent assembly for the

DISCAL

and compact) is code 59829; for the DISCAL

steel 551 and NA551 series is code 59756.

The moving parts that control air venting are

accessed simply by removing the upper cover

(4). Replacement cap and float assembly for all

versions of the brass DISCAL

series is code F39807.

59829

F39807

air separator is not installed perfectly

brass 551 series (except vertical

551 and NA551

W h e n c l e a n i n g , s i m p l y

unscrew the portion of the

body containing the automatic

air vent (5). For the vertical

and compact models without

a drain, the element can be

removed by removing the

upper cover (4). There is no

need to remove the air vent

body for these models.