High efficiency water coils including chilled cooling coils and hot heating coils for air handlers, duct systems and industrial air conditioning equipment.
Water coils are core heat exchange components widely applied in air handling units and duct HVAC systems, divided into two main categories: chilled water cooling coils and hot water heating coils. Each coil adopts a mature composite structure: seamless metal fluid tubes combined with stamped metal fins. Tubes are mechanically expanded into fin collars to form tight metal contact, eliminating air gaps and minimizing thermal resistance for superior heat transfer performance.
Tubes are arranged in staggered rows to disturb air flow and enhance turbulence, further improving heat exchange efficiency. We support full customization of tube size, fin type, fin density, casing material and overall dimensions to match residential, commercial and special industrial working conditions.
Low wind resistance, ideal for clean-air indoor HVAC systems.
Increases air turbulence with medium efficiency; cost-effective universal model.
Maximizes heat exchange area; best for high cooling and heating loads.
All fins adopt integrated drawn collars, ensuring stable tube-fin fit and consistent fin spacing during long-term operation.
| Component | Standard Material | Alternative Custom Materials | Common Sizes |
|---|---|---|---|
| Fluid Tube | Seamless Copper Tube | 90/10 Cupronickel, Stainless Steel, Carbon Steel | 3/8", 1/2", 5/8" OD, customizable wall thickness |
| Heat Exchange Fin | 0.006" Aluminum Fin | Thickened Aluminum, Copper, Carbon Steel | 4 ~ 14 fins per inch adjustable density |
| Outer Casing | 16 Gauge Galvanized Steel | Stainless Steel, Copper, Heavy Carbon Steel | Custom width, height and depth dimensions |
Cooling coils matched with chilled water circulation, AHRI 410 compliant, UL certified accessories. Supports vertical and horizontal installation inside air handlers and ventilation ducts.
Integrated shell heating coils for hydronic heating systems, suitable for commercial buildings, workshops and residential central heating air supply equipment.
High-pressure & high-temperature customized coils, maximum working pressure up to 1000PSI, operating temperature up to 3000°F. OEM replacement coils for outdated equipment are available.
Tubes Erosion Shields are used to protect boiler tubing from the highly erosive effects of high temperatures and pressures thereby greatly extending tube life.
A half pipe sleeve is a piping device, which is placed on a pipe to protect it against the aliments.
Read moreSnap rings are used in conjunction with boiler tubes erosion shields, which is a clip that easily installs boiler tubes erosion shields to the tube.
Read moreA stainless boiler tube shield is a piping device, which is placed on a pipe to protect it against the aliments.
Ceramic lined pipe is made through self-propagating high-temperature synthesis (SHS) technique.
Cast basalt lined steel pipe is composed by lined with cast basalt pipe, outside steel pipe and cement mortar filling between the two layers.
Ceramic tile lined pipes have very uniform coating of specially formulated ceramic material that is affixed to the inner of the pipe.
The material of the rare earth alloy wear-resistant pipe is ZG40CrMnMoNiSiRe, which is also the grade of rare earth alloy steel.
Tubes Erosion Shields are used to protect boiler tubing from the highly erosive effects of high temperatures and pressures thereby greatly extending tube life.
The ASTM A213 T91 seamless tubes are primarily used for boiler, superheater, and heat-exchanger.
When you partner with Sunny Steel, you can stop worrying about meeting deadlines thanks to our responsive and timely service. You'll also say goodbye to unnecessary shopping around. Instead, you'll get white glove service from an expert who understands your needs and can get you the materials you need quickly.
