Exchangers · 10 HVAC exchangers join circuits with different fluids: water-water, steam-water, glycol. Aurum Prodest sizes area and pressure drop, supplies gasketed or shell-and-tube units and pipes them so plates can be serviced, not bricked into a corner.
Wrong ΔT and flow is a “cold coil on a hot boiler”. We use project schedules, not the last site. Gasketed plates service well; brazed is compact but stricter on water; shell-and-tube for steam and dirty fluids.
Wrong ΔT and flow is a “cold coil on a hot boiler”. We use project schedules, not the last site. Gasketed plates service well; brazed is compact but stricter on water; shell-and-tube for steam and dirty fluids.
Pipework: strainers, gauges, bypass, wash-down. Insulation and pressure tests. Plate access — or nobody services it in a year.
Commissioning: flows, no air, no weeps. Workmanship by contract. Tashkent water often needs dirt traps and treatment; we allow for it.
Interface with AHUs and chillers: plates between glycol and water, boiler vs coil separation. The exchanger is not a random “adapter” from the last warehouse.
Service: wash, gaskets, retest. Plant-room contracts keep plates from scaling shut by the second heating season.
Heating coils warm outdoor air. Aurum Prodest sizes water and electric coils on airflow and heating-water schedule, fits freeze protection and does not let the unit ice on the first January night shift.
AHU cooling coils take heat off outdoor air: chilled water or DX from a condensing unit.
Coils and heat exchangers: sizing first, brand second. Pros/cons cover durability, hydraulics, and kit completeness.
A brief comparison by class and use case — we match equipment to budget and site
Swipe the table sideways →
| Brand | Class | Pros | Cons |
|---|---|---|---|
| | Premium | One ecosystem with manufacturer systems | Costlier than universal coils |
| | Premium | Premium heat exchange for industrial loops | High price and lead times |
| | Premium | Precise plate HEX selection | Premium budget per unit |
| | Mid-range | Clear ratings and familiar hydraulics | Not always best efficiency/$ |
| | Mid-range | Easy match to same-brand AHUs | Narrower than pure heat specialists |
| | Mid-range | Rotary recovery for efficient AHUs | Niche vs full HVAC brands |
| Type | gasketed / brazed / shell-and-tube |
|---|---|
| Water | strainers for local chemistry |
| Service | access to open plates |
| Tests | hydraulics required |
| HVAC | circuit separation |
| Wash | on contract |
Water, no strainer, no wash. Not the plate if the pipework was “minimum”.
Gasketed — service and extra plates. Brazed — compact, clean water.
Yes, with tests and insulation.
No. Schedules and flows differ.
Factory on the unit, us on pipework and start-up.
Often the exchanger prepares the coil circuit. We size together.
Thermal equipment — 12 cities. Crew dispatch, contract, warranty.
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