Bestobell Steam IB18H Series Horizontal Bucket Trap - Manual (Page 2)

Material
3170 Wasson Road • Cincinnati, OH 45209 USA
Phone 513-533-5600 • Fax 513-871-0105
[email protected] • www.bestobellsteamtraps.com Bulletin IM-IB18HSIM-0608
Maintenance
All Models of IB18H or IB18S.
Check that steam supply is shut-off. Ensure that all 1.
system pressures are off and trap is cool before
opening.
Remove cover (2) from body (1) by removing the
2.
bolts around the body flange.
Lift the cover and internal mechanism from the body.
3.
Unhook bucket unit (3) from lever assembly (4). 4.
Remove guide pin assembly (7) and lever by undo- 5.
ing the two screws.
Inspect pivot points for wear. Replace as needed.
6.
Inspect valve seat (6) and plug (5) (held by clip to 7.
lever) for wear or damage. Replace if required.
Valve seat can be removed using a socket or closed
8.
(box) end wrench.
Make sure interior of body is clean and free of any
9.
accumulation of dirt.
Inspect vent hole in top of bucket until. Make sure it
10.
is clean and open.
Inspect strainer screen (
11. IB18S only) for dirt or dam-
age. Replace as needed.
Reassemble in reverse order. Tighten valve seat per
12.
torque table. Installing a new body gasket.
Install and tighten cover bolts in a diagonal pattern
13.
to torque values shown in table.
Typical Installation
Part
No.
Component Material
1 Body A48 CL
2 Cover A48 CL
3 Bucket 304 SST
4 Lever 304 SST
5 Valve Plug Hard surfaced SST
6 Valve Seat Hard surfaced SST
7 Guide Pin Assembly 304 SST
8 Cover Gasket Teflon
9 Strainer 304 SST (IB18S only)
10 Strainer Cap Carbon Steel (IB18S only)
Shutoff
Valve
Strainer
Union
Dirt Pocket
(Optional)
Test Valve
Shut-off
Valve
Basic installation for IB18H or IB18S with shut-off valves
to isolate trap during testing, inspection or repair.
2
8
4
1
3
6
7
5
9
10
Installation with Bypass
IB18S with Blowdown
built-in
strainer
strainer
blow-out
valve
plug
Alternate installation for
IB18S only with inlet same
side as outlet