Single-Pass Heat Exchangers

At Harsha Engineers, we manufacture high-performance Single-Pass Heat Exchangers designed for efficient and reliable thermal transfer. In this design, the fluid flows through the tubes in a single pass from inlet to outlet, making it simple, effective, and easy to maintain.

Our single-pass exchangers are widely used in chemical plants, refineries, power generation units, pharmaceuticals, and food processing industries where moderate heat loads and steady performance are required.

Built with stainless steel, mild steel, or custom-specified alloys, each unit is precision-engineered to deliver durability, corrosion resistance, and consistent operation under demanding industrial conditions. With a focus on quality and energy efficiency, Harsha Engineers ensures every exchanger meets rigorous performance standards.

Material of Construction (MOC): MS, SS 304, SS 316, Duplex Steel, Titanium, Hastelloy.
Tube Diameter: 6 mm to 50 mm.
Tube Length: Up to 6 meters (custom-built).
Shell Diameter: 100 mm to 1500 mm.
Design Pressure: Up to 25 bar (higher available on request).
Design Temperature: -50°C to +300°C.
Flow Arrangement: Cross-flow or counter-flow.
Standards: ASME, TEMA, or GMP-compliant.

In a single-pass design, the tube-side fluid enters from one end of the exchanger, flows through the tubes once, and exits at the opposite end.
Simultaneously, the shell-side fluid flows over the tubes in a cross-flow or counter-flow arrangement.
Heat is exchanged between the two fluids through the tube walls, either cooling or heating the process fluid.
The single-pass arrangement makes the design less complex, easy to maintain, and reliable for many process applications.

Single-Pass Heat Exchangers are widely used in industries where simple and efficient heat transfer is required:

Pharmaceutical Industry: Cooling of purified water, solvent heating, process fluid temperature control.
Chemical Industry: Heat transfer for acids, alkalis, and process solutions.
Food & Beverage Industry: Milk, juice, and liquid food heating/cooling.
HVAC & Refrigeration: Chillers, condensers, and water cooling systems.
Marine & Offshore: Seawater cooling and lube oil cooling.
Power Plants: Auxiliary cooling applications.

Simple and compact design with easy installation.
Cost-effective solution for moderate heat transfer requirements.
Low pressure drop due to single-pass arrangement.
Easy cleaning and maintenance.
Customizable materials and sizes for different industries.
Durable and long-lasting construction.

Conclusion

Industries looking for efficient heat transfer with simple operation and minimal upkeep will find the Single-Pass Heat Exchanger to be a cost-effective and reliable option. Harsha Engineers produces single-pass exchangers using high-quality materials and precise engineering to guarantee long service life, efficiency, and dependable performance in a wide range of industrial applications.