Zhejiang Haoji Fluid Technology – Innovative Valve Manufacturer

Zhejiang Haoji Fluid Technology
Zhejiang Haoji Fluid Technology
Zhejiang Haoji Fluid Technology

Coliter® is the flagship brand of Zhejiang Haoji Fluid Technology Co., Ltd., a high-tech enterprise based in Yuhuan—China’s “Valve Capital”—with over 30,000㎡ factory space and 300+ employees, including 30+ R&D engineers. Since 2016, we’ve specialized in the design, manufacturing, and global export of copper valves, plumbing hardware, industrial control valves, and smart fluid systems. Our products are insured by Ping An Insurance, backed by advanced automated production lines, a national-level physical & chemical lab, and a commitment to “zero defects.” We serve clients in 60+ countries with certified quality, agile OEM/ODM services, and engineering-driven solutions.

Produce and warehousing
Produce and warehousing
Produce and warehousing

From the blank casting to the final produet,it has advanced inspection means and testing equipment for quality control, All prodlucts are subject to accuratematerial analysis and dimensional inspection according torelevantstandards,strict process inspectionis carried outhroughouthe production proces,eachvalve is manufactured accordingtocustomerrequirements orinternational standards,and fina inspection is conducted before shipment. We willstriveto achievezerovalve defects.

R&D and innovations
R&D and innovations
R&D and innovations

We have a team of advanced software design and design,which is suitable for shape design and software design.
We have advanced processing equipment and market technology, develop new products to meet the needs of themarket, and have won international patents for many times.


Honor

Honor

Committed to providing customers with safe, envionmentally friendly, intelligent valve products and systems solutions.

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Our Strengths

Cost Performance
Cost Performance

We possess world-class production technologies and equipment, coupled with a stable and reliable supply of raw materials. Backed by advanced lean manufacturing management , an excellent modern enterprise management team, and robust institutional frameworks, we consistently deliver products that are economical, reliable, and offer superior cost-performance value to the market.

Marketing Management
Marketing Management

We utilize an advanced software management system to optimize our supply chain. This enables us to better meet customer demands and respond with greater timeliness and accuracy.

Production Control
Production Control

Our workshop strictly adheres to 5S management standards and implements a rigorous quality control system, ultimately achieving high-quality plumbing fittings and pipes with "Zero Defects."

Process and equipment
Process and equipment

The blanks are processed using hot forging technology, heated by an intermediate frequency furnace. Infrared constant temperature control ensures uniform heating, protecting the raw material. To prevent cracking caused by improper installation at the valve body's threaded connections, products undergo annealing after machining to eliminate internal stress.

Manufacturing
Manufacturing

We utilize advanced automated equipment to ensure a highly streamlined production process. This guarantees precise process control and consistent product quality.

Material Science
Material Science

The product is manufactured using HPb59-1 brass, ensuring superior quality. Our company is equipped with a National Technology Center and a Physical & Chemical Laboratory, enabling us to conduct batch testing and guarantee the consistency of raw material quality.

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Quality Commitment

Dear Coliter Customers,

First and foremost, we would like to express our sincere gratitude for your trust in our company. To ensure your complete peace of mind and based on our commitment to product quality, we solemnly pledge the following:
1、The warranty period for "Coliter" brand valve series products, Should any quality issues arise within this warranty period, we will not only bear the losses caused to you by the product quality issues but also provide an additional 1:1 product compensation.
2、Our products are covered by a quality insurance policy issued by Ping An Insurance Company of China.

The following situations are not covered under this warranty:
1、Any damage resulting from improper transportation, handling, or storage;
2、Products that have had non-original parts replaced or have been modified by the user;
3、Losses resulting from improper installation.

ZHEJIANG HAOJI FLUID TECHNOLOGY CO.,LTD
ADD: Lupu Industrial Park, Yuhuan, Zhejiang, China