Construction details
DISCAL
®
air separators are designed to allow
maintenance and cleaning without having to
remove the valve body from the pipework.
All DISCAL
®
air separators (except vertical
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
stainless steel
float guide pin (3)
prevents the float
from sticking due
to accumulating
6
4
3
6
5
5
3
4
4
4
3
6
5
5
3
4
4
59829
residue in the flowing fluids, even when the
DISCAL
®
air separator is not installed perfectly
vertical.
A replacement air vent assembly for the
DISCAL
®
brass 551 series (except vertical
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
®
551 and NA551
series is code F39807.
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.
4
3
6
5
5
3
4
4
F39807
59756
Summary of Contents for DISCAL 551 Series
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