EX Design
A patented, compact plate-fin design for centrifugal or axial compressor intercooler and aftercooler applications — maximizing surface area in a minimum footprint.
Engineered to Order
Custom heat exchangers built to your exact specification.
At Diversified Manufacturing, we offer a wide range of continuous fin-tube heat exchangers, shell & tube heat exchangers, and pressure vessels. Every unit is engineered to order and can be built to your exact specifications — backed by over 65 years of precision manufacturing.
All engineered-to-order products are built to ASME standards, highly customizable, and backed by over 65 years of expertise and dedication to quality.
Product families
The right exchanger for every application.
From compact plate-fin intercoolers to full TEMA-range shell & tube bundles and air-cooled systems, DMI covers the complete spectrum of industrial heat transfer.
Enhanced Design Shell & Tube
Straight tube, enhanced tube and removable bundle configurations, with capabilities extending throughout the complete range of TEMA — from light industrial to heavy process service.
Air Cooled Systems
High-efficiency systems for cooling a variety of liquids and gases using ambient air — ideal where water is scarce or where water treatment costs must be minimized.
Engineered Standards
Standardized exchangers designed for quick engineering and fast turnaround — proven geometries for common industrial duties, manufactured to the same ASME quality standard.
Code compliance
Built to ASME, TEMA and international standards.
Every engineered-to-order unit is designed and stamped to the applicable code for its service. Our Lockport facility holds ASME Code Stamp (U), ISO 9001, TEMA full range, European PED, and China and Korea code stamps.
- ASME Section VIII, Div. 1 (U-Stamp)
- TEMA full range
- ISO 9001
- European PED
- China & Korea stamps
Certifications & code scope
Which code applies to which product.
DMI's Lockport facility holds the stamps below. This table maps each to its engineering scope and the engineered-to-order products it covers — the per-product detail behind the homepage trust band.
| Code / standard | Scope | Applies to |
|---|---|---|
| ASME Section VIII, Div. 1 (U) | Pressure-boundary design, fabrication & stamping of unfired pressure vessels and exchangers | Shell & tube, pressure vessels, enhanced-design bundles |
| TEMA (full range) | R, C and B class tubular mechanical standards for shell & tube construction | All shell & tube exchangers |
| ISO 9001 | Quality-management system governing engineering, fabrication and inspection | Every ETO product |
| European PED | EU Pressure Equipment Directive conformity assessment | Units destined for EU service |
| China & Korea stamps | Regional pressure-vessel code stamps for export | Export units on request |
Code applicability is confirmed against your service conditions and destination market at quote time.
Need help sizing a unit? Use our integrated IPAC Calculator to size aftercoolers and heat exchangers online, then send your configuration straight to our engineers as a pre-filled quote request.
Materials of construction
Built in the alloy your service demands.
Material selection is driven by temperature, pressure, corrosion and the process fluid — confirmed against your actual conditions before fabrication begins.
Carbon Steel
General industrial and compressed-air cooling service. Cost-effective for most process temperatures and pressures.
Stainless Steel
Corrosive, sanitary and higher-temperature service where carbon steel corrosion rates are unacceptable.
Aluminum
Lightweight air-cooled cores and fin surfaces where weight and thermal conductivity are the dominant design criteria.
Titanium
Aggressive media, seawater service and applications where stainless steel corrosion resistance is insufficient.
Design envelope
Representative capabilities, confirmed per order.
Engineered-to-order means the envelope below is a starting point, not a catalog limit — final ratings are set by your specification and the governing code.
| Parameter | Range / options |
|---|---|
| Configurations | Continuous fin-tube · shell & tube (straight, U-tube, removable bundle) · air-cooled |
| Materials of construction | Carbon steel · 304 / 316 stainless · aluminum · titanium · copper alloys |
| Connections | Flanged (150–600# RF) · NPT · socket-weld · customer-specified |
| Code stamps | ASME U · PED · China · Korea (as required) |
Full design envelope (representative ranges)
| Parameter | Representative range | Notes |
|---|---|---|
| Design pressure | Full vacuum to 3,000+ psig | Service- and code-dependent |
| Design temperature | Cryogenic to 800°F+ | Alloy-dependent |
| Tube outside diameter | 1/4" to 1-1/2" | Plain or enhanced surface |
| Shell diameter | To 60"+ | Larger on request |
| Surface area | A few ft² to several thousand ft² | Single or multi-bundle |
Representative ranges for the product class — not a published product spec. Final dimensions, ratings and tolerances are engineered to your conditions and confirmed on the certified drawing.
Have a sizing result or a spec? Start an RFQ.
Send us your application requirements — or a configuration direct from the IPAC Calculator — and an engineer will follow up with a quote.