Fixed Tube
This type is commonly used than any other type. The tube plates are welded to the shell and serve as flanges to which the channels and covers are bolted and there is no limitation on the number of tube side passes. The tube bores can be cleaned mechanically or chemically but the outside tube surface are inaccessible except to chemical cleaning.

U Tube
The tube bundle consists of stationary type plate U-tubes baffles, tie rods and spacer. The thermal expansion is absorbed by the U-bends. Tube bundle can be removed from the shell for cleaning or maintenance but internal cleaning is difficult and it is applied where the tube side fluids are clean.

Floating Head
Suitable to rigorous duties. The tube bundle consists of straight tubes expanded on to tube plates of each end. The floating head is fitted to the tube plate remote from the channel and the cover is held in position by a split backing ring. The tube bundle is easily removed for cleaning or maintenance.

Packed Gland Floating Head :
The shell and tube side fluids are separated at the floating head end by a circular lantern ring which fits round the floating tube plate and is packed by two glands, one on the tube side and one on the shell side. The lantern ring is grooved on the inside face and drilled radically with vent holes, thus leakage from either gland is apparent from outside inspection and the fluids are prevented from mixing, since they can leak to waste and not in to one another.. the tube bundle can be withdrawn for cleaning and tube replacement is simple. The presence of the packed gland in this construction makes it unsuitable for volatile or toxic fluids.

Rotary Drum Dryer is a drying system in which water / solvent removed from a solution / suspension by the heating source. Drum Dryer is a slow speed rotating drum, a part of the drum is submerged in an attached trough contains wet feed . Heat is applied to the inside of the rotating drum through drum hollow shaft and thorough rotary joint and the wet feed clings to the outside of the drum. The material is dryed during a part of revolution and is removed by a blade or scraper. The condensate inside the drum will come out through other port of rotary joint The operation of the drum dryer is controlled by the adjustment of the drum speed and the heat applied.

The material of construction and the size of the drum depend upon the character of the product and its capacity

Rotary Drum Flaker is similar to Drum Dryer, where the conversion of liquid in to flakes through cooling medium. Cooling water is circulated inside the drum during operation through drum hollow shaft and the operation is similar to Drum Dryer.

The material of construction and the size of the drum depend upon the character of the product and its capacity