Project Overview
This project was implemented in Hengshui, China, focusing on a valve and pipe fittings coating line designed for industrial corrosion protection and surface finishing applications.
The production line is used for coating various metal components such as valve bodies, pipe fittings, flanges, and connectors, which require stable surface protection under different operating environments.
The customer required a system capable of handling multiple product specifications while maintaining consistent coating quality and stable production efficiency. ZHYAO provided a fully integrated coating solution covering pretreatment, automated spraying, curing, and material handling systems.
Customer Requirements
Before system design, the following requirements were identified:
Suitable for irregular-shaped valve and pipe fitting products
Stable corrosion protection performance for industrial use
Compatibility with multiple product sizes in one production line
Improved efficiency compared with manual spraying
Consistent coating thickness and surface appearance
Stable continuous production with reduced downtime
The system needed to balance production flexibility and process stability.
Engineering Solution
Based on product characteristics and production requirements, a complete coating system was designed:
1. Pretreatment System
A multi-stage cleaning process was applied to remove oil, rust, and surface impurities, ensuring coating adhesion and long-term durability.
2. Automatic Spraying System
The spraying process was designed for complex valve geometries. Spray trajectories and parameters were optimized to ensure even coverage in recessed and irregular areas.
3. Curing System
A temperature-controlled curing oven was configured to ensure uniform heat distribution, supporting stable curing results for different product sizes.
4. Conveyor System
A hanging conveyor system was adopted to support continuous movement of mixed product types and maintain stable production flow.
Technical Advantages
Stable coating performance for complex valve structures
Improved consistency across different pipe fittings
Flexible production for multiple product specifications
Reduced manual spraying workload
Improved production flow coordination
Enhanced corrosion resistance performance
The system is designed to maintain stable operation under continuous industrial production conditions.
Application Scope
This coating line is suitable for:
Industrial valves
Pipe fittings
Flanges and connectors
Fluid control components
Industrial pipeline accessories
Project Value
After system commissioning, the production line achieved:
More stable and controlled coating process
Improved surface quality consistency
Better adaptation to mixed-product production requirements
Smoother process coordination between stages
The system also provides a foundation for future capacity expansion if required.
Service & Support
To ensure stable long-term operation of the coating system, a complete technical service structure is provided:
Installation & Commissioning Support
Engineering guidance is provided during installation and system commissioning to ensure proper setup and stable startup.
Operator Training
Practical training covers equipment operation, daily maintenance, troubleshooting, and basic process control to support efficient production management.
Technical Support
Remote and on-site technical assistance is available to help resolve operational issues and optimize production performance when needed.
Maintenance Guidance
Detailed maintenance documentation and recommendations are provided to support routine upkeep and extend equipment service life.
This support system helps ensure stable and continuous operation of the coating line under industrial production conditions.
The Hengshui valve and pipe fittings coating line demonstrates how a properly engineered coating system can improve process stability and adapt to complex industrial product structures.
By integrating pretreatment, automatic spraying, curing, and conveyor systems, the production line achieves a controlled and repeatable coating process suitable for valve and pipeline manufacturing applications
Technical Inquiry
If you are planning a coating system for valves, pipe fittings, or similar industrial components, ZHYAO engineering team can provide customized solutions based on product structure, production capacity, and factory layout requirements.
