Pioneering the Future

of Cooling Tower Technology

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Cooling the World Since 1978

Ryowo (Holding) Company Limited is a full time, full service leading manufacturer and supplier of cooling tower and make-up water tanks. We have been providing a proven and cost-effective heat rejection solutions globally since inception.

At Ryowo, we are committed to provide worldwide customers with the highest quality heating rejection solutions. CTI certifications, ISO-9001, ISO-14001 are reminders we hold ourselves accountable to achieving and constantly improving upon. We pride ourselves with our safety and quality standards. Join us as we’re committed to build a better future across the world.

1978: Foundation

Ryowo was founded in Hong Kong, marking the beginning of our journey in revolutionizing cooling tower technology.

1979: Product Launch

Introduction of the FT Series FRP round type counter flow cooling tower.

1980: Expanding Range

Launch of the FR Series FRP rectangular crossflow cooling tower.

1986: Market Expansion

Expansion into the North and Latin American markets, showcasing our global reach.

1990: Establishing U.S. Presence

Established a manufacturing facility in Miami, FL, USA, broadening our international footprint.

1992: Growth in China

Inauguration of our manufacturing facility in ShenZhen, China.

1993: Innovation in Cooling Towers

Developed the FT Series up to 1000RT, demonstrating our commitment to product innovation.

1995-1996: Global Expansion and Product Diversification

Expanded to Egypt and Pakistan in 1995.
Began producing steel cooling towers in 1996.

1997: Commitment to Quality

Achieved ISO 9001 accreditation, affirming our dedication to quality standards.

1999: Advancement in Testing and Certification

Developed our Thermal Test Laboratory for CTI certification.

2003-2019: Continuous Innovation and Growth

Introduced various cutting-edge technologies, expanded sales in the Middle East, developed ultra-low noise heat rejection systems, and more.

Present: Shaping the Future

Continuing to innovate and lead in the cooling tower industry with sustainable and efficient solutions.

Advancing Innovation, One Degree at a Time

Since 1978, Ryowo has journeyed from a visionary startup to a global leader in cooling tower technology. Our dedication to innovation, quality, and sustainability has shaped our past and will continue to drive our future. As we look ahead, we remain committed to delivering excellence and pioneering solutions for a cooler, more sustainable world. Join us in shaping the future of cooling technology.

Why Ryowo?

State-of-the-Art Facilities

Our extensive manufacturing capabilities enable us to meet diverse needs with innovative design, newest technologies and unmatched precision.

Innovative Research & Development

At the heart of Ryowo is our 1500m² research and development facility. Here, we ensure each product meets the highest standards of performance and reliability.

Advanced Testing Lab

We rigorously test our products to exceed international standards, affirming our commitment to safety, quality and performance

Quality and Safety

ISO 9001 and ISO 14001 certified, we prioritize safety and quality in all our products.

Sustainable Future

We're committed to long-term engineering resilience and success. We operate with our clients and partners to make a positive contribution towards the environment and society across the world.

Engineering Tomorrow: Pioneering Cooling Solutions

Engineering Tomorrow: Pioneering Cooling SolutionsWe have the manufacturing capabilities enable us to meet diverse needs with innovative design, the newest technologies and unmatched precision.

1500 m2
Size of our research and development facility
1000 m3/hr
Water flow rate

Applications

Mission Critical

Efficient and robust, Ryowo's cooling towers ensure quick installation and optimal performance for mission-critical operations.

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Sustainable Building

Ryowo's sustainable cooling solutions meet top efficiency standards, contributing to greener building designs and LEED credits.

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Industrial Process

Durable and reliable, Ryowo cooling towers are ideal for the strict conditions of pharmaceutical and manufacturing sectors.

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Institution

Ryowo cooling systems prioritize safety with minimal drift loss, suitable for high-traffic environments.

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Infrastructure

Trusted in public infrastructure, our cooling towers with plume-abatement are a choice for busy airports.

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Comfort Cooling

Ryowo caters to various spaces like hotels and arenas, focusing on resource conservation and community well-being.

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Our Products

FWS

INDUCED DRAFT, CROSSFLOW TYPE

The FWS is Ryowo's most efficient heat rejection device, capable up to 1350m3/hr.

Flexible in footprint, large interior maintenance space, andavailable in modular construction, it is designed to meet all industry needs.

  • 94 ~ 1395M3/Hr Single Cell
  • 150 ~ 2300RT (530 ~ 8100KW) Single Cell
  • Robust Design
  • Axial Fan
  • Modular Assembly capable for safer, faster project completion and lower installation cost
  • Low drift rate, down to 0.001% of circulating water flow
  • ASHRAE 90.1 Compliant
  • OSHA Compliant
  • CTI Certified

Efficient Heat Rejection

Designed for optimal performance in various industrial applications.

Modular Construction

Provides flexibility in configuration and installation.

Large Interior Space

Ensures ease of maintenance and servicing.

Whisper
Quiet

Comes with low noise fan and low splash noise characteristics.

Material of Construction

Casing
Basin
Structure
Bolt & Nuts
FRP
Pultruded FRP
Hot Dip Galvanize
SS304
SS316

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FCS

INDUCED DRAFT, CROSSFLOW TYPE

The FCS is Ryowo's cooling tower capable up to 365m3/hr with a 3m height limit.

For any projects with strict height restrictions,its low profile is your preferred option while maintaining the same servicability requirements.

  • 87~434 M3/Hr Single Cell
  • 145~720RT (510~2530Kw) Single Cell
  • Robust Design
  • Lower profile to meet height restrictions
  • Safe to Operate

  • ASHRAE 90.1 Compliant
  • OSHA Compliant
  • CTI Certified

Low-Profile Design

Specially designed for projects with height restrictions.

Efficient Cooling

Utilizes advanced technology for optimal cooling performance.

Easy Installation and Maintenance

Designed for hassle-free installation and easy upkeep.

Durable Construction

Built with high-quality materials for long-term durability and reliability.

Material of Construction

Casing
Basin
Structure
Bolt & Nuts
FRP
Pultruded FRP
Hot Dip Galvanize
SS304
SS316

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Get the full specifications of our products by entering your email. You'll receive all the details and a product specialist will contact you for personalized assistance.

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FVS

INDUCED DRAFT, CROSSFLOW TYPE

The FVS is Ryowo's single intake, crossflow heat rejection device, capable up to 365m3/hr.

Suited to be installedto side of a structure without performance lost, and available in modular construction.

  • 110~365 M3/Hr Single Cell

  • 190~610RT (3680~2130Kw) Single Cell
  • Single sided intake, induced draft crossflow design
  • Ideal replacement for forced draft blower cooling tower
  • Ideal replacement for forced draft blower cooling tower
  • Design to perform in restricted space

  • ASHRAE 90.1 Compliant
  • OSHA Compliant
  • CTI Certified

Single Intake Design

Optimized for side installation, enhancing its adaptability for different site layouts.

Whisper
Quiet

Comes with low noise fan and low splash noise characteristics.

Compact Structure

Ideal for sites with limited space.

Modular Construction

Allows for flexibility in installation and scalability to meet specific cooling requirements.

Material of Construction

Casing
Basin
Structure
Bolt & Nuts
FRP
Pultruded FRP
Hot Dip Galvanize
SS304
SS316

Click to find your solution

Get the full specifications of our products by entering your email. You'll receive all the details and a product specialist will contact you for personalized assistance.

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FRS

INDUCED DRAFT, CROSSFLOW TYPE

The FRS is Ryowo's horizontal intake, horizontal discharge cooling tower, capable up to 610m3/hr.

Perfect for indoor application and restricted space, its layout is designed to simplify field installation, while maximizing thermal performance.

  • 48~610 M3/Hr 

  • 80~1020RT (280~3500Kw) 

  • Compact size

  • Perfect for indoor application
  • Available with direct drive & ultra-low noise fan

  • ASHRAE 90.1 Compliant
  • OSHA Compliant
  • CTI Certified

Horizontal Intake and Discharge

Ideal for indoor applications and spaces with limited vertical clearance.

High Static Axial Fan Option

Enhances air flow and cooling efficiency.

Compact Structure

Ideal for sites with limited space.

Whisper Quiet

Comes with low noise fan and low splash noise characteristics.

Material of Construction

Casing
Basin
Structure
Bolt & Nuts
FRP
Pultruded FRP
Hot Dip Galvanize
SS304
SS316

Click to find your solution

Get the full specifications of our products by entering your email. You'll receive all the details and a product specialist will contact you for personalized assistance.

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FXS

INDUCED DRAFT, COUNTERFLOW TYPE

FXS is Ryowo's counter flow cooling tower offer with up to 600 m3/hr capacity.

It is our most compact cooling tower in our lineup.

  • 70~600 M3/Hr 

  • 120~1000RT (40~3500Kw)

  • Counterflow design

  • Modular Assembly available
  • Requires for less plan area

  • ASHRAE 90.1 Compliant
  • OSHA Compliant
  • CTI Certified

High Cooling Efficiency

Ensures optimal performance in heat rejection.

Easy Maintenance

Designed for straightforward servicing and upkeep.

Durable Construction

Built with robust materials for longevity and reliability.

Whisper Quiet

Ideal for efficient coComes with low noise fan and low splash noise characteristics.oling in a smaller footprint.

Material of Construction

Casing
Basin
Structure
Bolt & Nuts
Hot Dip Galvanize
SS304
SS316

Click to find your solution

Get the full specifications of our products by entering your email. You'll receive all the details and a product specialist will contact you for personalized assistance.

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FDC

FORCED DRAFT, COUNTERFLOW TYPE

FDC is Ryowo's only forced draft flow cooling tower option. With heat rejection capacity at up to 300m3 /hr, it is ideal for an exactcooling tower replacement project

  • Forced draft cooling tower, blower style fan

  • Fan assembly upstream of moist air, prolongs lifespan and reduces service problems
  • Ideal for direct replacements

Forced Draft Counterflow Design

Enhances performance in tight spaces and for specific retrofit requirements.

High Efficiency

Optimized for superior cooling and energy savings.

Robust Construction

Built with robust materials for longevity and reliability.

Material of Construction

Casing
Basin
Structure
Bolt & Nuts
Hot Dip Galvanize
SS304
SS316

Click to find your solution

Get the full specifications of our products by entering your email. You'll receive all the details and a product specialist will contact you for personalized assistance.

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HRSI

DOUBLE DECK DESIGN

With over 40 years experience, Ryowo is the go-to full service heat rejection device manufacturer for indoor applications.

HRSI is our custom series open type cooling tower enhanced for indoor application with high external static pressure requirement.

With capacity up to 1500m3/hr, it can provide large heat rejection rate with limited installation spaces.

  • Single sided intake, horizontal discharge, high static option

  • Single and double decker configuration capable
  • Up to 1350 m3/hr flow rate per unit

  • Ideal for indoor application, and plume abatement

  • OSHA Compliant
  • FAT or CTI Test Provided

Double Deck Design

Optimized for indoor applications and high external static pressure requirements.

High Efficiency

Delivers superior cooling performance in various settings.

Compact Footprint

Ideal for space-constrained environments.

Easy Maintenance

Designed with accessibility in mind for hassle-free servicing.

Material of Construction

Casing
Basin
Structure
Bolt & Nuts
FRP
Hot Dip Galvanize
SS304
SS316

Click to find your solution

Get the full specifications of our products by entering your email. You'll receive all the details and a product specialist will contact you for personalized assistance.

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FVC Direct Contact

INDUCED DRAFT, CROSSFLOW, DIRECT CONTACT FLUID COOLER

Introducing our latest close circuit cooling tower system, process fluid can now be free from debris and corrosive ions.

Our FVC system can reduce in maintenance downtime and cleaning chemical usage, which translates into increased saving in the longrun.

  • Evaporative cooling tower with a plate HX

  • Fluid cooler with open circuit cooling tower efficiency
  • Signficant improved performance over closed-circuit coolers

  • ASHRAE 90.1 Compliant

  • OSHA Compliant

Induced Draft Crossflow Design

Ensures efficient cooling and space optimization.

Direct Contact Cooling

Enhances heat transfer efficiency.

Versatile Application

Suitable for various industrial cooling processes.

Easy Maintenance

Designed with accessibility in mind for hassle-free servicing.

Material of Construction

Casing
Basin
Structure
Bolt & Nuts
FRP
Pultruded FRP
Hot Dip Galvanize
SS304
SS316

Click to find your solution

Get the full specifications of our products by entering your email. You'll receive all the details and a product specialist will contact you for personalized assistance.

By clicking Sign Up you're confirming that you agree with our Terms and Conditions
Thank you! Your submission has been received!
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Frequently Asked Questions

Find answers to common questions about cooling towers and our products.

What is evaporative cooling?

Evaporative cooling is using water evaporation to remove heat from a system at a low energy consumption and virtually maintenance-free.

What is a cooling tower?

A cooling tower is a heat exchanger which air and water brought in direct contact to reduce the water’s temperature. Small volume of the water is evaporated, reducing the circulating water temperature through the tower. The water is distributed through nozzles onto blocks of material called, “fill”, which exposes as much water surface area as possible for maximum air-water contact. As the water flows through the cooling tower, the exposed air is pulled through the tower by the electric motor-powered fan. As the water evaporate, creating the cooling, the cooled water is pumped back to the industrial process where it absorbs heat again.

What types of cooling tower do Ryowo make?

We offer a range of direct and indirect cooling towers in crossflow and counterflow configuration. We offer both factory assembled and field-erected solutions to meet the specific requirements of our client. Design for optimal performance, durability and ease of maintenance, a Ryowo tower is engineered to work together as an integrated system for the best performance and longevity.

Still have questions?

Leading Cooling Tower Manufacturer

Let us determine what is right for you.

Hong Kong Office

Room 1908, Nathan Road 700 Mong Kok, Kowloon Hong Kong



Tel: (852) 2391-8381/5
Fax: (852) 2789-3802

Sales Contact: Mr. Howard Kwok
E-mail: hwkwok@ryowo.com

China Plant

No.263 MeiJing Road West, Dalang, Dongguan, GuangDong, PRC
Postal Code : 523795


Tel: (86-769) 8939 9698, 8939 9699
Fax: (86-769) 8297 3398

E-mail: ryowo06@ryowo.com