Stainless Steel Heat Exchanger
Durable and Efficient Heat Transfer for HVAC & Industrial Systems
Reliable Heat Transfer in HVAC, Refrigeration & Industry
Delin stainless steel heat exchangers are engineered for efficient, corrosion-resistant heat transfer in HVAC, refrigeration, and industrial processing. Available in shell-and-tube, plate, and coaxial configurations, they are built from SS304 or SS316L for excellent resistance to oxidation and corrosion — including food and beverage duty where cleanliness matters.
Built to a Standard
Every exchanger is TIG / argon-arc welded to ASME IX and 100% hydrostatically tested before delivery. Standard design pressure reaches 2.0 MPa (custom to 4.0 MPa) and design temperature spans -30°C to +200°C, covering chilled water, hot water, thermal oil, and process fluids.
Material Choice Is an Engineering Decision
SS304 suits general HVAC, water, and mild process duty; SS316L adds molybdenum for improved resistance to chlorides, acids, and marine environments. Both are food-safe, so the same exchanger can serve chilled water loops, hot water systems, thermal oil circuits, and food and beverage lines. For higher-pressure or larger-scale systems, design pressure can be raised from the standard 2.0 MPa up to 4.0 MPa across the full -30°C to +200°C design temperature range.
Matching the Right Type to the Duty
The best exchanger is the one sized to your duty. Shell-and-tube designs handle large capacities and high pressures, plate units pack maximum efficiency into a compact footprint, and coaxial exchangers keep refrigeration circuits simple and space-saving. Delin builds all three configurations, so we recommend the right type for your heat load, pressure, and space rather than selling a single design.
Choose Your Configuration
- Shell-and-tube — the workhorse for large capacity and high pressure
- Plate — compact, high efficiency for tight spaces
- Coaxial — simple, space-saving for refrigeration circuits
Where Delin Exchangers Work
Delin stainless steel heat exchangers serve HVAC systems and central air conditioning, refrigeration and cold storage, industrial process heating and cooling, waste heat recovery, and food and beverage processing. Because they handle both heating and cooling across a wide temperature range, the same unit can condition chilled water in summer and recover heat in winter — one exchanger, multiple duties, sized by our engineers to your loop.
Connection sizes range from 1/2" to 6", with custom sizes, flange types, and material grades available. Replaceable tube bundles keep maintenance simple and extend the service life of the system.
Quality at Every Weld
Every Delin exchanger is welded in-house by qualified TIG/argon-arc welders to ASME IX, then 100% hydrostatically tested before packing. Test reports are available with each order, and SGS third-party inspection can be arranged on request. Custom sizes, flange types, and material grades are built to your drawings, with an MOQ of just 1 unit and standard lead times of 15-25 days (25-40 days for custom configurations).
Why Delin
We are the manufacturer, not a trading company. That means consistent material sourcing, in-house welding control, factory-direct pricing, and the ability to build exactly the configuration your project needs — backed by CE and ISO 9001 certification.