Fluid Coils

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Water coils for chilled water and hot water systems in commercial and industrial air handling equipment.

Overview

Chilled and hot water coils transfer heat between circulating water and air across a finned tube coil, providing cooling or heating for air handling units, fan coils, and make-up air systems. The same basic construction serves both functions — the distinction is water temperature and circuit design. Coilmen supplies water coils as new construction units built to spec and as replacement coils matched to existing equipment, across standard, cleanable, high pressure, and industrial-duty configurations.

Coil Types

Chilled Water Coil Internal Construction
Chilled Water Coils

Designed for sensible and latent cooling in air handling units, fan coils, and make-up air systems, built to project specifications or matched to the dimensions and connections of existing equipment for retrofit and replacement projects. Coil rows, fin spacing, and circuiting are selected to meet the air-side and water-side conditions of the application, with field measurement and OEM cross-reference available to confirm fit before a replacement coil is built.

Hot Water Coil Internal Construction
Hot Water Coils

Used for space heating, preheat, and reheat applications in single and multi-row configurations sized to capacity and entering air temperature requirements. Replacement hot water coils are built to match existing casing dimensions and connection locations, with field measurement, OEM drawing review, and coil nameplate cross-reference available to support retrofit projects without unit modification.

Cleanable Coil Internal Construction
Cleanable Coils

Built with removable header or U-bend construction, allowing tube circuits to be mechanically cleaned without removing the coil from service piping. Configurations can be matched to existing equipment for applications where fouling, scale, or particulate buildup require periodic tube-side cleaning.

High Pressure Coil Internal Construction
High Pressure Coils

Designed for elevated water-side working pressures, built with heavier wall tube and reinforced headers, with designs available up to 700 PSI. Tube material and wall thickness are selected to meet the pressure rating and connection requirements of the application.

Industrial Coil Internal Construction
Industrial Coils

Heavy-duty coils for process cooling, process heating, generator cooling, and other demanding industrial applications, with casing, tube, and fin materials matched to higher loads, harsher environments, or process fluid compatibility requirements. Replacement industrial coils are built from field measurements or OEM data to match obsolete or hard-to-source equipment, allowing existing systems to stay in service without a full unit replacement.

Retrofit Replacement Expertise

Replacement coil matching is a core part of Coilmen’s business. Many of the coils we replace are from manufacturers that are now obsolete, discontinued, or otherwise difficult to source — our team builds replacement coils to match the original equipment’s dimensions, connection locations, and circuiting so the existing unit stays in service without modification to the casing or surrounding ductwork. Fit and performance are confirmed before a replacement coil is built, using field measurements taken on site, OEM drawings, or data pulled from the existing coil’s nameplate.

  • Field measurement and on-site evaluation available for existing installations
  • Replacement matching for obsolete, discontinued, and hard-to-source OEM coils
  • Connection locations, circuiting, and casing dimensions matched to the original coil
  • Coil nameplate and submittal data review for units without field access
  • Replacement coils built to fit existing casings without unit modification

Construction Options

Coils are available in a wide selection of fin, tube, and casing materials, with thicknesses and sizes selected to meet the requirements of each project.

Fin Options: Aluminum, Copper, Stainless, Carbon Steel

Tube Options: Copper, Stainless, Cupro Nickel, Carbon Steel, Brass

Casing Options: Galvanized, Carbon Steel, Stainless Steel, Aluminum

  • AHRI Certification Available
  • ASME Available
  • UL Listing Available

Applications

Air Handling UnitsFan Coil UnitsMake-Up Air SystemsRooftop UnitsChilled Water SystemsHot Water Heating SystemsIndustrial Process CoolingIndustrial Process Heating

Coilmen Support

Not sure exactly what coil you need? Coilmen can help identify the right replacement coil from a photo of the existing nameplate, an OEM drawing, an equipment schedule, or a set of field measurements. Submit your project details below and our team will follow up with selection assistance and pricing.

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