Bestobell Steam TS22 Series - Manual

3170 Wasson Road • Cincinnati, OH 45209 USA
Phone 513-533-5600 • Fax 513-871-0105
[email protected] • www.bestobellsteamtraps.com
Delta Element Style Traps
Installation & Maintenance Instructions for
Bestobell Steam Delta Element Style Traps
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.
Ideal Installation
Prior to installation:
Blow out piping to remove any scale or dirt. •
Verify that your Bestobell steam trap will meet system •
conditions by checking the nameplate for operating
differential pressure and maximum pressure and tem-
perature limits of the trap body.
Ideal Installation
Bestobell steam traps can be installed in most positions
from horizontal to vertical with exceptions as illustrated.
The flow arrow forged on the body or indicated on the
nameplate must be in the direction of the flow; otherwise
the trap will not operate because the integral check valve
will not allow flow in reverse direction.
In cold climates, install in vertical piping with discharge
downwards so as to be self-draining. For discharge to
atmosphere, ensure that any tail pipe is short and full
diameter to prevent downstream freezing. The trap and
associated piping can be insulated without affecting trap
operation in outdoor freezing conditions.
Single element Magnums can be installed as shown for
general traps. Multiple element Magnums must only
be installed for vertical piping with downward dis-
charge. Consult distributor or factory for assistance.
A sealed trap can be installed in any position. On a hori-
zontal line, the flow arrow must be at the top (as shown).
Flow through a sealed unit must be as indicated by the
direction of arrow on body casting.
If ordered, and identified by “AV” stamping, for air vent-
ing service, the Bestobell trap should be installed as
shown above. Trap is to be mounted on vent connection
located at upper foremost point of steam space.
Initial Warm-Up
As with all steam equipment, it is recommended that the
external gasketed joints be retorqued after a warm-up/
cool-down cycle. Torque the cover bolts in the diagonal
sequences as shown. Note: retorquing is essential
after socket welding.
Wrench sizes and torque values for cover fasteners and
strainer caps are shown in Torque Value Table.
General Traps
OK
NO NO
OK OK
Cold Climates
SHOWS OPPTIONAL
“DTC” CAP FOR
STRAINER
BLOWDOWN
(add appropriate
blowdown valve)
Magnum Models
Sealed Trap Models DS12, TS12
OK
OK
NO
Air Vent Service: For Traps Marked “AV”
OK OK
1 3
4 2
1
6
4
8
2
7
3
5