Views: 0 Author: Site Editor Publish Time: 2025-09-23 Origin: Site
Closed circuit= water (or process fluid) circulates inside a coil heat exchanger, and external spray water + airflow remove heat.
Advantage: Prevents process water contamination, reduces scaling, and minimizes water loss compared to open towers.
Popular in HVAC, chemical plants, data centers, and industrial cooling in China.
Products: Closed circuit cooling towers, counterflow/crossflow designs.
Website: [aoshuai.com](http://www.aoshuai.com)
Products: Compact closed cooling towers for industrial and commercial use.
Large cooling tower manufacturer, offers closed loop counterflow towers.
Products: Industrial closed circuit towers, stainless steel coil designs.
Products: Closed loop cooling towers, HVAC cooling solutions.
Focus: Closed circuit cooling towers for industrial process cooling.
Material options: Galvanized steel, stainless steel, FRP casing.
Heat exchanger coils: Carbon steel with epoxy, copper, or stainless steel.
Airflow type: Induced draft (most common), some forced draft.
Applications: Plastic injection molding, steel plants, HVAC chillers, data centers.
Water saving & easy maintenance compared to open towers.
| Manufacturer | Capacity Range | Coil Material Options | Casing Material | Certifications | Export Markets |
| Zhejiang Aoshuai Refrigeration(浙江奥帅制冷) | 30–1500 RT | Carbon steel (epoxy coated), stainless steel, copper | FRP, galvanized steel | ISO9001, CE | Southeast Asia, Middle East, Africa |
| LiangChi (良机冷却设备) | 50–3000 RT | Stainless steel, copper | FRP, galvanized, stainless steel | ISO9001, CTI, CE | Global (Asia, Europe, Americas) |
| Shandong GRAD Group (格瑞德集团) | 20–2000 RT | Copper, stainless steel | FRP, galvanized steel | ISO9001, ISO14001, CE | Europe, Middle East, Africa |
* **LiangChi** → Most internationally recognized, CTI-certified (trusted in Europe/US).
* **Aoshuai** → Strong in aftermarket parts + mid-range towers, cost-effective.
* **GRAD** → Large-scale industrial cooling applications, strong in HVAC exports.