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Who are we?

Professional Valve Testing & Grinding Equipment Manufacturer

Precision grinding equipment for global valve manufacturers, petrochemical industries, and maintenance workshops.

Professional Valve Testing & Grinding Equipment Manufacturer

Multiple Patents

Quality Assurance

Intelligent Testing Technology

Intelligent Testing Technology

Computer-connected systems, PLC control, automatic pressure holding, and data recording functions improve testing efficiency and reduce human operation errors.

Wide Testing Range & Customized Solutions

Wide Testing Range & Customized Solutions

Our equipment supports valve testing applications from DN15 to DN1600 and can be customized according to valve types, pressure requirements, and industry standards.

2500

Standardized
Factory Area(m²)

20

+

Valve Equipment Experience(Years)

100

+

Domestic Industrial
Customers

6

+

Utility Model Patents

60

Maximum Testing Pressure(MPa)

Why Choose Yufeng Machinery

The professional manufacturer and supplier in China.
Specialized Valve Equipment Manufacturer

Specialized Valve Equipment Manufacturer

With years of experience in valve testing and grinding equipment, Yufeng Machinery focuses on providing professional solutions for valve manufacturers and industrial users.

Strong Independent Manufacturing Capability

Strong Independent Manufacturing Capability

From sheet metal fabrication to precision machining, all key components are produced in-house, reducing outsourcing risks and ensuring stable product quality.

Advanced R&D and Patent Technologies

Advanced R&D and Patent Technologies

Our technical team has developed multiple patented technologies covering valve grinding structures, worktables, and precision processing systems.

Global Service & Technical Support

Global Service & Technical Support

With multilingual sales support and international service experience, we provide professional assistance for customers worldwide.

about us

About Us

Wenzhou Yufeng Machinery Technology Co.,Ltd.


About Yufeng – Valve Testing & Grinding Equipment Manufacturer

Wenzhou Yufeng Machinery Technology Co., Ltd. is a professional manufacturer specializing in valve test benches, valve pressure testing equipment, valve grinding machines, and valve lapping equipment in Wenzhou, Zhejiang, China.

Located in Wenzhou, one of China's major valve manufacturing centers, Yufeng has more than 20 years of experience in valve machinery manufacturing and customized equipment solutions. Our main focus is the development and manufacture of equipment for valve testing, pressure testing, sealing surface grinding and lapping, valve repair, refurbishment, and industrial maintenance.

Our equipment is designed for valve manufacturers, valve repair and service companies, industrial maintenance workshops, oil and gas service providers, engineering contractors, and other industrial users that require reliable valve testing and maintenance equipment.

Valve Test Benches for DN15–DN2200 Valves

Valve testing is one of our core areas of expertise. Our valve test benches can be designed and configured for valves ranging from DN15 to DN2200, covering a wide range of valve sizes, pressure classes, valve structures, and testing requirements.

Our valve testing solutions can be applied to various industrial valve types, including:

Ball valves

Gate valves

Globe valves

Check valves

Butterfly valves

Safety valves

Control valves

Other industrial valves according to customer requirements

Our product range includes hydraulic top-pressure valve test benches, claw-type valve test benches, horizontal valve test benches, vertical multi-station valve test benches, submerged valve test benches, safety valve test benches, and intelligent valve testing systems.

Depending on the valve type and application, our equipment can be configured for shell testing, seat leakage testing, pressure testing, and other specified valve testing procedures.

From DN15 small-bore valves to DN2200 large-diameter industrial valves, we can develop suitable testing configurations according to the customer's valve dimensions, pressure requirements, test medium, applicable standards, testing procedures, and workshop conditions.

Valve Grinding & Lapping Machines

Another major product line of Yufeng is valve grinding and lapping equipment for valve repair, refurbishment, and sealing surface maintenance.

Our valve grinding machines are designed for applications involving different industrial valve types and sealing components, including gate valves, globe valves, check valves, butterfly valves, ball valves, safety valves, and other valve-related sealing surfaces, depending on the machine configuration and tooling.

Our product range includes portable valve grinding machines, planetary valve grinding machines, and customized valve grinding and lapping solutions for different workshop and maintenance applications.

These machines are developed to support the preparation, restoration, and maintenance of valve sealing surfaces through controlled grinding and lapping processes.

For customers with different repair requirements, we can provide equipment configurations based on factors such as valve size, sealing surface structure, workpiece material, required grinding area, workshop conditions, and operating method.

Equipment for Valve Manufacturing, Repair & Maintenance

Our equipment can be used in a variety of industrial applications, including:

Valve manufacturing and production

Valve pressure testing

Valve repair and refurbishment

Industrial valve maintenance

Oil and gas equipment maintenance

Petrochemical and refinery maintenance

Power plant maintenance

Pipeline maintenance

Valve service workshops

Engineering and industrial maintenance projects

By combining valve testing equipment with grinding and lapping solutions, Yufeng can support customers across different stages of the valve maintenance and service process.

Customized Valve Machinery Solutions

Valve testing and repair requirements can vary considerably from one project to another. Valve type, size, pressure class, sealing structure, test medium, applicable standard, workshop layout, and operating method can all affect the required equipment configuration.

For this reason, we do not rely solely on a one-size-fits-all approach.

Our engineering and production teams work with customers to develop equipment configurations based on their actual application requirements. We can discuss valve specifications, DN/NPS range, pressure requirements, testing medium, applicable standards, clamping method, testing procedures, grinding requirements, workshop conditions, and other technical parameters before recommending a suitable solution.

This approach allows us to provide both standard equipment and customized valve testing and grinding machinery for different industrial applications.

Manufacturing, Factory Testing & Technical Support

As a manufacturer, Yufeng combines equipment design, mechanical manufacturing, assembly, testing, and technical support within its production process.

Before delivery, equipment can undergo factory inspection and testing according to the agreed technical requirements. We can also provide relevant technical documentation, operating guidance, installation and commissioning support, and spare parts assistance according to project requirements.

Our goal is not simply to supply a machine, but to provide equipment that can be integrated into the customer's valve manufacturing, testing, repair, or maintenance workflow.

Serving International Customers

With experience in international business and customized valve equipment manufacturing, Yufeng continues to develop cooperation with customers in different regions and industrial markets.

We welcome inquiries from valve manufacturers, valve repair workshops, industrial maintenance companies, oil and gas service providers, engineering contractors, distributors, and other professional equipment users.

If you are looking for a valve test bench, valve pressure testing machine, valve grinding machine, or valve lapping equipment, our team can evaluate your requirements and recommend a suitable configuration.

Please provide your valve type, valve size/DN or NPS, pressure range or pressure class, test medium, applicable standard, quantity, and intended application. Based on this information, we can discuss the appropriate equipment configuration and technical solution for your project.

Yufeng – Valve Testing & Grinding Equipment for Industrial Valve Applications.


Send Inquiry

If you have any enquiry about quotation or cooperation, please feel free to email us at 18358711345@163.com or use the following inquiry form.Our sales representative will contact you within 24 hours. Thank you for your interest in our products.

Zhenhai Petrochemical Jian'an Engineering

Zhenhai Petrochemical Jian'an Engineering

One of China's leading petrochemical maintenance and engineering companies. Yufeng Machinery supplied multiple valve testing machines including B300, H600, and other models...

​Jinan Odmet Fluid Control

​Jinan Odmet Fluid Control

A key partner in the fluid control equipment sector, having purchased multiple units of our valve testing machines including B400, B300, B600, and L150 models from 2022 to 2026.

Tanggong Valve Group

Tanggong Valve Group

A leading valve manufacturer in Wenzhou. Since 2022, we have provided them with dual-valve-seat matching grinders (QT125), multi-head grinding machines (DN300)...

Zhejiang Zhongkong Fluid Technology

Zhejiang Zhongkong Fluid Technology

A high-end valve manufacturer in the automation control industry. They purchased our ball grinding machine (QT150) in 2020, which has been consistently used in their precision...

Xinjiang Kaiwei Severe Valve Technical Service

Xinjiang Kaiwei Severe Valve Technical Service

Representing our service to the western China market, they have purchased our worktables and rotating worktables since 2020, with repeated orders in 2025, demonstrating our...

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