Watson McDaniel IB Inverted Bucket Steam Trap

The IB Series inverted bucket traps are available in several sizes and capacity ranges. Inverted bucket traps can handle superheated steam when a check valve is used. The smaller traps are primarily used in drip and tracer applications. These traps are also used on unit heaters, laundry equipment, and other process equipment where slow start-up due to poor air handling capability can be tolerated. Larger sizes are used on process equipment; however, since bucket traps have

limited air handling capability, F&T traps are the preferred choice.



HOW IT WORKS



When there is condensate in the system, the inverted bucket inside the steam trap sits on the bottom of the trap due to its inherent weight. This allows condensate to enter the trap and to be discharged through the seat orifice located at the top. When steam enters the trap, the bucket floats to the surface and closes off the discharge valve containing the steam in the system.

Eventually steam is bled off through a small hole in the top of the bucket causing the bucket to sink which repeats the cycle.



FEATURES



Handles superheated steam (use internal check valve

option to eliminate loss of prime)

Water hammer resistant

In-line repairability is simplified by having all internals

attached to the cover

Valve & seat are at the top of the trap making it less

sensitive to dirt

All stainless steel internals with hardened valve & seat



INSTALLATION



Trap must be installed in upright position to function properly.



MAINTENANCE



All working components can be replaced with the trap body

remaining in-line. The repair kit for the traps contain a lever and seat assembly with gasket. If a new trap is required, remove and replace. With superheated steam, a check valve must be installed at inlet of trap. For full maintenance details see Installation and Maintenance Manual.



OPTIONS



Blowdown valve connection available on 1041, 1042, 1044 & 1038S. Thermic vent to improve air handling capability. Internal check valve for superheat or condensate backflow applications.