172-65510MA-05 (GP Series System Package) 27 Dec 2016
11
(7) Vent Pipe [Sv] and Overflow Pipe [Sf]:
•
Be sure to install a vent pipe and an overflow pipe. Failure to install an
overflow pipe is dangerous, as condensate may spurt from the vent pipe
and could result in burns and other injuries.
•
Pipe the vent pipe and the overflow pipe to a safe place such as a pit.
•
Piping size of the overflow pipe should be the same or larger than
condensate inlet pipe.
WARNING
•
Models other than the GP10L-1AJ
(1
2 i
n)
Condensate
Receiver
Flash Steam
Flash Steam
Condensate
Receiver
To
PowerTrap
Flash Steam
Overflow Pipe
Overflow Pipe
Condensate
Loop Seal
300 mm
(12 in)
1)
2)
Flash Steam
Condensate
Receiver
Vent Pipe
Overflow Pipe
Overflow Pipe
Condensate
NOTE:
This sketch is for explanation
purposes only and is not intended
as an installation design.
NOTE:
This sketch is for explanation
purposes only and is not intended
as an installation design.
Pipe the discharge to a safe place such as a pit.
High temperature steam or hot water may splash.
There is a possibility of condensed hot water dripping from vent pipe
outlet. Make sure to extend to where people do not pass.
Condensate
Receiver
Vent Pipe
Flash Steam
To
PowerTrap
Flash Steam
The flow velocity in the pipe should be considered when determining the pipe
size.
1) If flash steam can be discharged from overflow pipe
Install overflow pipe and vent pipe separately.
2) If flash steam should not be released from overflow pipe (prevent flash
steam release)
Install overflow pipe and vent pipe separately. For overflow pipe, install loop
seal (approx. 300 mm (12 in)). Flash steam release from overflow pipe can
be prevented since water always accumulates at loop seal. Piping size
should be the same or larger than condensate inlet pipe.
NOTE: • There is a possibility of rust becoming clogged and/or corrosion
since water always present in the loop seal; the possibility is greater
if the piping diameter is too small (generally 25 mm (1 in) or smaller)
• If the loop seal becomes clogged, hot overflow water will blow from
vent pipe; make sure to install vent pipe to lead to a safe place
• Do not install loop seal on the vent pipe
Contact TLV if neither 1) nor 2) above can be installed.
