Industrial Valve
Darko is a professional industrial valves supplier. With a focus on quality and functionality, we also offer intelligent and technological designs, and can customize a complete design for you.
Choose the perfect ndustrial valves for your needs, whether it’s airlock valve, flap valve , discharge valve, damper valve, or slide gate. We offer large-scale customization services for all kinds of industrial valves to meet your specific requirements.
Types of Industrial Valves
Featured Industrial Valves
The flow control gate valve is mainly used to regulate the switching flow in the flow conveying control system of powder, grain materials and small granular materials. When selecting a pneumatic flow control gate valve, it’s essential to consider factors such as the type of material, desired flow rates, and installation environment to ensure optimal functionality.
The stainless butterfly valve is made of high-quality stainless steel, offering excellent corrosion resistance and durability, ensuring long-term stable operation in harsh environments. Its compact structure and easy operation allow for quick opening and closing, providing superior sealing performance and optimizing fluid management.
The high temperature damper effectively regulates airflow, ensuring the system operates safely and stably under high temperature conditions. Constructed from heat-resistant materials, it offers excellent corrosion and wear resistance, making it suitable for extreme conditions. It is a crucial component for ensuring equipment performance and safety.
Hot Industrial Valves
Double flap valve obtained 12 international certifications, including ISO 15848-1 and ATEX explosion-proof certification. Repeat customers include China National Building Material Group (Cement Production Line), Baowu Steel Group (Blast Furnace Dust Removal System) and so on.
The rotary valve, as a core component of the material handling system, has become our star product . Rotary valve obtained 18 international certifications, including EU ATEX and US FDA. Customer repurchase rate reaches 82%, with major clients including: HuaXin Cement, Conch Cement, Sinoma and so on.
Two way diverter valve obtained ATEX explosion-proof certification and FDA food-grade certification. Customer repurchase rate reaches 68%, with major partners including Gree Electric ,WuXi Biologics and so on. The domestic market share has increased by 35% for two consecutive years.
Butterfly damper obtained ISO 15848-Part certification and CE/PED certification. Customer repurchase rate is 79%, with major clients including China Power Construction, Shagang Group, Danone China and so on. Self-lubricating bearing design, with maintenance-free period of up to 5 years
Production scale and quality assurance
- Hardware Facilities: Covers an area of over 90 acres, equipped with high-end equipment such as CNC machine tools imported from Germany and Japan, with fixed assets exceeding 90 million yuan.
- Production Capacity Assurance: Capable of supplying complete equipment for a 10,000 T/D cement production line.
- Quality Certification: Products comply with European EN standards and have been awarded the title of Jiangsu Province Famous Brand Product.
- Team Size: Employs 500 people, including 123 insured, with the technical team comprising several external experts.
Industry standing and technical strength
- Innovation Capability: Holds 17 patent technologies, demonstrating strong innovation ability.
- Compliance: Hold 3 administrative licenses and 7 industry qualification certificates to ensure product compliance.
- R&D Recognition: Recognized as a technology-based small and medium-sized enterprise (2024), with R&D capabilities officially acknowledged.
After-sale Service
Nantong Darko Building Materials Technology Co., Ltd. performed outstandingly in the 2025 domestic valve brand after-sales service rankings, with core advantages including rapid response and professional technical support.
- Dako Industrial Valves’ overseas projects are equipped with multilingual engineers, and key equipment comes with an extended maintenance warranty of 5 years.
- Dako Industrial Valves has established spare parts centers in multiple countries, providing technical solutions within 48 hours for cement plant failures, and has localized teams stationed in Middle Eastern projects.
- Dako Industrial Valves uses AR remote guidance and AI predictive maintenance, reducing downtime by 35%.
Customized industrial valves
- High temperature flap valve
- Rotary airlock feeder
- Zero leakage damper
| Models and specifications | Ability （t/h） | Power （kw） | D | H | A | B | C | Weight （t） |
| EMV1200 | 220 | 9.2 | 1200 | 1600 | 1200 | 1400 | 1500 | 7.6 |
| EMV1600 | 320 | 11 | 1600 | 2200 | 1600 | 1800 | 3100 | 10.5 |
| EMV1800 | 550 | 15 | 1800 | 2500 | 1800 | 2000 | 3800 | 13 |
| EMV2000 | 600 | 18.5 | 2000 | 2800 | 2000 | 2200 | 4300 | 15.6 |
Project Case(The bypass damper beside the tail boiler of the Jiande Hongshi cement)
Before the replacement
- The actual import temperature is 330 degrees.
- The actual export temperature is 195 degrees.
- The actual bypass ‘s lower part temperature is 295 degrees.
- The actual inlet temperature of fan/blower is 220 degrees.
After the replacement
- The actual import temperature is 330 degrees.
- The actual export temperature is 215 degrees.
- The actual bypass ‘s lower part temperature is 145 degrees.
- The actual inlet temperature of fan/blower is 220 degrees.
Find the industrial valve solution that’s right for you
Industrial valves, as the core components of industrial control systems, their adaptability directly affects production safety, efficiency and cost control.
Whether you need on-site installation of industrial valves under extremely high temperatures and pressures, or large-scale procurement or non-standard customization to optimize costs, our industrial valves can offer high-performance, stable and reliable options. Meanwhile, all of our products are ISO and API certified and have undergone multiple stringent tests to ensure long-term operation in various industrial environments.
In order to provide you with an accurate quotation, could you please tell me the type and specifications of the industrial valves you need? The price may vary depending on the materials used, the size of the industrial valves and the quantity of the order.
However, we may be able to accommodate smaller orders depending on the product and availability.
If you need detailed technical manuals or data sheets, please feel free to contact us. We will be more than happy to assist you.