IM-P184-09
CMGT Issue 4
7
Note: Before actioning any installation observe the ‘Safety information’ in Section 1.
Referring to the Installation and Maintenance
Instructions, name-plate and Technical Information
Sheet, check that the product is suitable for the
intended installation:
3.1
Check materials, pressure and temperature
and their maximum values. If the maximum
operating limit of the product is lower than
that of the system in which it is being fitted,
ensure that a safety device is included in
the system to prevent overpressurisation.
3.2
Remove protective covers from all
connections, threaded blanking plug
from the bleed port (screwed and socket
weld version only) and the protective film
from all name-plates, where appropriate,
before installation on steam or other high
temperature applications. A suitable form
of isolation must be fitted to the bleed port
before commissioning of the line.
3.3
The valve can be installed in the horizontal
or vertical plane. When installed in the
horizontal plane the bleed port should
ideally be positioned at the bottom (see
Figure 2). Isolation of the bleed port should
be positioned as close to the valve as
possible to avoid back-up of condensate
in the isolated bleed line. The bleed port
connection must be piped to a safe visible
atmospheric place as close to the valve
as possible.
Please note there is no flow direction arrow
on the valve as it can be installed with flow
from right to left or left to right.
3.4
When installed on steam systems a suitable
steam trap should be fitted immediately
upstream of the isolation valve to drain
condensate. This will ensure drainage of
the pipe when the valve is closed, and
will prevent damage of the valve due to
waterhammer. The drain trap should be
either a ball float (FT) or thermodynamic
(TD) type. Correct condensate drainage of
all upstream pipework is also vital.
Fig. 2
Incorrect Installation
Correct Installation
Bleed point
3. Installation
