DRS Marlo Coil has more experience with coils over a wider variety of applications than anyone in the industry. Our AHRI coils are available for hot water, chilled water or steam applications.

Whatever your requirements, including custom engineered, or direct fit replacements, DRS Marlo Coil will provide the exact coil for your application, with flexibility of custom engineered circuiting, fin spacing, header configurations, and materials.

DRS Marlo Coil's AHRI coils are available in either standard delivery cycles or in a matter of days through our Priority Coil Program.

DRS Marlo Coil is proud to carry the AHRI certification. AHRI certification means coil performance is a certainty. To give our customers assurance of quality performance, coils are tested over a wide range of operational conditions, by an independent laboratory.

Steam coil with straight thru design featuring inner steam tubes which are supplied from both ends of the coil and utilizing a single condensate header. A crossover header is provided to allow for same-end connections.

Steam coils can be configured with either a continuous straight-through steam path or distributing type with inner and outer steam tubes.

Standard steam coils have opposite end supply and condensate connections.

The steam tubes are pitched toward the condensate header to promote condensate removal.

Distributing steam coils feature inner steam distributing tubes and same-end supply and condensate connections combined into a single common header to promote condensate removal. Either design is available for low or high-pressure steam applications and in several combinations of materials.

Featuring brass end caps on tube ends that allow access to the interior of the coil for cleaning. These coils are typically applied in environments where sediment or foreign materials may accumulate within the coil.

Fluid coils are available for chilled water, hot water, glycol and special fluid applications.

The removable box is ideal for high-sediment fluid environments, such as river or lake water. Removing the headers exposes all of the tubes for easy inspection or cleaning.

Fluid coils are available for chilled water, hot water, glycol and special fluid applications.

Industrial processes often require heat transfer coils with features that exceed commercial HVAC coils. DRS Marlo Coil's industrial coils are available in a wide range of special materials and thicknesses designed to meet the rugged demands of industrial applications. They are perfect for chilled or hot water, brine solutions, refrigerants or steam applications. Industrial process coils feature continuous plate type fins and staggered tube arrangements offering the best engineering balance between heat transfer, air flow resistance, strength and maintenance. Each industrial process coil tube is supported across its entire length by the fins, providing a rigid coil of unmatched strength and durability.

Similar to our standard water coils. However, the core on a “P” coil is pitched within the casing and auxiliary drain headers are used to ensure fast and complete drainage of the coil.

Fluid coils are available for chilled water, hot water, glycol and special fluid applications.

Condenser coils for use with most refrigerants.

Our refrigeration coils include evaporator and condenser coils. With heat transfer surface areas similar to our fluid coils, direct expansion evaporator coils also feature distributors, capillary tubes, suction headers, and optimal thermal expansion valves. Condenser coils feature various circuiting options, including sub-cooling circuits. Care is taken to ensure the interior of our refrigeration coils remains contaminant free during production and testing, including a nitrogen charge prior to shipment.

Direct expansion evaporator coils for use with most refrigerants.

Our refrigeration coils include evaporator and condenser coils. With heat transfer surface areas similar to our fluid coils, direct expansion evaporator coils also feature distributors, capillary tubes, suction headers, and optimal thermal expansion valves. Condenser coils feature various circuiting options, including sub-cooling circuits. Care is taken to ensure the interior of our refrigeration coils remains contaminant free during production and testing, including a nitrogen charge prior to shipment.

Shell and Tube heat exchangers typically have round housings for use with higher pressures on the air, refrigerant or gas side. Water is passed through tube bundles that are placed so that optimum heat transfer occurs from the liquid to the gas.

Applications include industrial processes and are frequently found in systems that have access to steam such as Power Plants, Hospitals, Universities, and many industrial applications.

Standard water coils typically consisting of multiple rows and circuits.

Fluid coils are available for chilled water, hot water, glycol and special fluid applications.

Steam coil utilizing 0.625” diameter outer tubes with 0.375” inner steam distributing tube.

Steam coils can be configured with either a continuous straight-through steam path or distributing type with inner and outer steam tubes.

Standard steam coils have opposite end supply and condensate connections.

The steam tubes are pitched toward the condensate header to promote condensate removal.

Distributing steam coils feature inner steam distributing tubes and same-end supply and condensate connections combined into a single common header to promote condensate removal. Either design is available for low or high-pressure steam applications and in several combinations of materials.

Steam coil utilizing 1.0” diameter tubes with 0.625” inner steam distributing tube.

Steam coils can be configured with either a continuous straight-through steam path or distributing type with inner and outer steam tubes.

Standard steam coils have opposite end supply and condensate connections.

The steam tubes are pitched toward the condensate header to promote condensate removal.

Distributing steam coils feature inner steam distributing tubes and same-end supply and condensate connections combined into a single common header to promote condensate removal. Either design is available for low or high-pressure steam applications and in several combinations of materials.

Steam coil utilizing 0.625” diameter tubes and a straight through steam path.

Steam coils can be configured with either a continuous straight-through steam path or distributing type with inner and outer steam tubes.

Standard steam coils have opposite end supply and condensate connections.

The steam tubes are pitched toward the condensate header to promote condensate removal.

Distributing steam coils feature inner steam distributing tubes and same-end supply and condensate connections combined into a single common header to promote condensate removal. Either design is available for low or high-pressure steam applications and in several combinations of materials.

Steam coil utilizing 1.0” diameter tubes and a straight through steam path.

Steam coils can be configured with either a continuous straight-through steam path or distributing type with inner and outer steam tubes.

Standard steam coils have opposite end supply and condensate connections.

The steam tubes are pitched toward the condensate header to promote condensate removal.

Distributing steam coils feature inner steam distributing tubes and same-end supply and condensate connections combined into a single common header to promote condensate removal. Either design is available for low or high-pressure steam applications and in several combinations of materials.

The Marlo Stratomizer® Dampered Face and Bypass Coil provides the most reliable method of preheating and tempering fresh outside air while maintaining full steam pressure or hot water flow to the coil at all times.

By the positioning of dampers, proportioned quantities of air are either directed through the heating surface or bypass the heating surface to achieve the required discharge air temperature. The Stratomizer® dampers are automatically repositioned to maintain a set leaving air temperature when a change in outside temperature occurs. Downstream actuator mounting is available for the Marlo Stratomizer® to provide reduced width/height if needed.

• Freeze Protection
• Constant Air Volume
• Minimized Air Stratification
• Minimum Temperature Override
• Accurate Temperature Control
• Rated in Accordance with AHRI 410
• Multiple Configurations, 115 sizes
• Vertical or Horizontal Orientation
• Three Year Warranty

Turbine inlet cooling systems condition the incoming air to a lower temperature increasing air density and mass flow rate. The process restores the performance of the turbine to its peak capacity regardless of the weather. DRS has successfully completed Turbine Inlet Coil project installations around the world.

Heating coils are used to improve the efficiency of the GT in turn down situations, or to reduce the possibility of icing in certain regions. Marlo has provided bare tube coils as well as standard fin and tube coils for heating installations improving the performance of the GT in such diverse applications.

Our standard Turbine Inlet Coils are approved by all major turbine manufacturers and all coils feature integrated lifting lugs and fully drainable circuits. Marlo offers optional corrosion preventative coatings, materials, and flexible duct mounting hole sizes and locations. Marlo can accommodate your unique requirements.
At DRS Marlo Coil we work to achieve the best value solution for our customers. We have in-house resources to help you size the equipment to meet your cooling needs and minimize air pressure drop through the system. Improve turbine performance with a quality Marlo cooling coil, the most important part of your inlet system.