Paharpur Cooling Towers Ltd. Offers Cross-Flow Cooling Tower. Paharpur Cooling Towers Ltd. Is an ISO 9001 awarded company. The company manufactures Cooling Towers and Air Cooled Heat Exchangers. The Cross-Flow Cooling Tower incorporates just about every design advantage that has been conceived during the years, providing thermal performance, low drift for today`s environment, and minimal long term maintenance cost. The Cross-Flow Cooling Tower has both single and double air entry configurations offer mechanical, structural and operational advantages which result in greater efficiency, lower maintenance and longer service life.