Bestobell Steam IB18H Series Horizontal Bucket Trap - Manual

3170 Wasson Road • Cincinnati, OH 45209 USA
Phone 513-533-5600 • Fax 513-871-0105
[email protected] • www.bestobellsteamtraps.com
Inverted Bucket Traps (IBH/S)
Installation & Maintenance Instructions for
Bestobell Steam Inverted Bucket Traps (IBH/S)
Warning: Bestobell Steam products must only be used, installed and repaired in accordance with these Installation
& Maintenance Instructions. Observe all applicable public and company codes and regulations. In the event of leak-
age or other malfunction, call a qualified service person; continued operation may cause system failure or a general
hazard. Prior to servicing equipment, disconnect, shut off, drain and/or bypass all pressurized fluids.
Read Instructions
The Bestobell Steam IB18H and IB18S Series of inverted
bucket steam traps will provide you with long, trouble-free
service if they are correctly installed and maintained.
These traps offer a cast iron body with all stainless steel
internal components. The replaceable valve components
are of hardened stainless steels. The IB18S model addition-
ally features a built-in strainer. Both styles are designed for
horizontal in-line piping installation. A few minutes of your
time spent reading these instructions and installing the
traps as suggested, will save hours of trouble and down-
time later.
Ideal Installation
Blowdown piping to remove any foreign material. 1.
Verify that your Bestobell steam trap will meet 2.
system conditions by checking the nameplate for op-
erating differential pressure and maximum pressure
and temperature limits of the trap body.
Inverted bucket traps are selected based on con-
3.
densate load, not pipe size. Verify that selection
included a safety position.
These style traps can only operate properly with the
4.
trap body and the internal bucket in a vertical position.
This requires that the only recommended installation
5.
is in a horizontal pipe run with the cover assembly
uppermost, and the body plumb. Any variation could
result in failure to operate properly as the internal
bucket could rub along the inside of the trap.
Install trap in an accessible location for future check-
6.
ing and maintenance.
Isolation valves should always be installed on either
7.
side of the trap for service purposes.
For Process, Heating, or Dripleg applications; these
8.
inverted bucket style traps should be located off
of a condensate collecting pocket and below the
condensate outlet of the equipment. See typical
installation figure.
Operation
Bestobell Steam’s IB18H and IB18S inverted bucket
traps feature simple internal stainless steel components
that move to close the valve seat when steam enters
the trap underneath the bucket assembly. As the steam
condenses within the inverted bucket, the bucket drops
down within the trap body. Through a linkage arrange-
ment, the valve is opened and condensate is allowed
to pass through. Air venting of non-condensable gases
is through a small bleed hole drilled in the top of the
inverted bucket.
Installation
Check that pipe threads are clean and free of shav- 1.
ings. Use proper thread sealant for steam service.
Where possible, arrange the piping such that con-
2.
densate flows to the trap by gravity.
Trap each piece of equipment separately.
3.
Locate the trap at the lowest point, preferably be- 4.
low the equipment outlet.
On most applications, the trap should be a mini-
5.
mum of 10” below the equipment outlet. This drop
acts as a reservoir for condensate level changes.
Arrange piping and trap location to be easily acces-
6.
sible for inspection and repair.
Install bypasses only if required for maintenance.
7.
Shutoff valves, unions, and test “tee” after a trap 8.
should be installed to provide easier operation,
maintenance, and testing.
Install an in-line strainer before models without
9.
built-in strainers.
Install check valves after trap, especially if the
10.
equipment or system being drained is not in con-
tinuous operation.
Check all pipe sizes to prevent restricted flows,
11.
especially in condensate return lines. Undersized
returns are a major cause of poor system perfor-
mance.
Insulation after the trap is ideal, but do not insulate
12.
the trap.
Observe all applicable public and company codes
13.
and regulation concerning steam and condensate
piping.
When starting for first time, apply steam to equip-
14.
ment, then open block valve before trap slowly. This
allows condensate to fill bucket area and establish
the prime of water.
Refer to example illustrations for installations suggestions.
15.