Steam Coil Air Pre Heater (SCAPH)

Steam Coil Air Pre Heater (SCAPH) is an extended surface type [finned tube] gas to the gas heat exchanger.
This equipment preheats air to the required process temperature using saturated steam. Steam flows inside the tube and air passes over the finned tubes.
Steam coil air preheaters (SCAPHS) are also used to heat air to raise the cold end temperature to prevent acid dew point corrosion.
SCAPH is extensively used in all types of High Capacity Boilers, Recovery Boilers, and Dryers, etc.
In areas with low ambient air temperatures, this equipment is incorporated into the design of a boiler for low load operation and startup operation.

This type of air heater uses an extended surface, normally referred to as fins, to increase the heat transfer rate and to reduce the overall size
It is located in the duct between the FD fan and the main air heater.
Our organization has the complete facility to size, design, and manufacture SCAPH to any tailor-made requirements of the customer.
Finned tubes may be of a G type or spiral wound and made of aluminum.
Our SCAPH’s are modular units that can be easily erected and removed from the existing location for maintenance activities.