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CHECK VALVE APPLICATION IN THE PETROCHEMICAL INDUSTRY

Service Plan Brief Introduction

We provide professional check valve solutions for the petrochemical industry, selecting appropriate valve types and materials based on different production processes and fluid characteristics.

This ensures effective prevention of reverse fluid flow, such as crude oil and refined oil, under harsh conditions like high temperatures, high pressures, and strong corrosion.

Our solutions help maintain the safety and stability of production equipment, reducing the risk of accidents and equipment damage caused by backflow.

Customized Solution Process Introduction

Working Condition Analysis:

In-depth understanding of various processes in the petrochemical industry, such as crude oil extraction, refining, and chemical product synthesis. The analysis includes fluid properties (corrosiveness, viscosity, particulate content, etc.), working pressure (ranging from low-pressure transportation to high-pressure reaction processes), temperature ranges (from low-temperature storage to high-temperature cracking), pipe diameter, and installation space.

Material Selection:

For highly corrosive media, corrosion-resistant alloy materials or lining materials are chosen for the valve body and disc, such as Hastelloy and Monel alloys to resist acidic media corrosion, and fluoropolymer lining materials for dealing with highly corrosive media like fluorine. For high-temperature and high-pressure conditions, high-temperature, high-strength alloy steel materials are used to ensure the structural integrity and sealing performance of the valve under extreme conditions.

Structural Design Optimization:

Based on fluid flow rate and pressure fluctuations, the internal structure of the check valve is optimized. For large-diameter pipelines, multi-disc swing check valves are used to reduce the rotational inertia of the valve disc, allowing it to respond more quickly to changes in fluid flow and effectively prevent backflow. For areas prone to water hammer effects, check valves with cushioning devices or slow-closing functions are designed to reduce the closing speed of the disc, minimizing the impact of water hammer on the pipeline and equipment.

Manufacturing and Quality Control:

The check valves are manufactured strictly in accordance with international and industry standards. Each production step undergoes rigorous quality inspections, including material property testing, casting or forging quality control of the valve body, and assembly accuracy checks. Advanced nondestructive testing techniques, such as ultrasonic inspection and magnetic particle testing, are used to ensure no internal defects. Comprehensive performance tests, including pressure testing, sealing tests, and operational reliability testing, are conducted before delivery to ensure stable operation under actual working conditions.

Corresponding Solution Service Process Display

Demand Communication and On-site Survey:

Engage in detailed discussions with engineering and technical personnel from petrochemical companies to understand the specific requirements of the check valves in their production processes. Arrange for professional technicians to conduct an on-site survey to record detailed information such as pipeline layout and installation environment.

Product Delivery and Installation Guidance:

After production and inspection are completed, the product is promptly delivered, along with detailed transportation and installation manuals. If needed, professional technicians can be sent to the site to provide installation guidance, ensuring the check valve is installed correctly.

Customized Production and Quality Inspection:

The design plan is handed over to the production department for customized manufacturing according to strict quality standards and production processes. During production, the quality control team supervises the process and conducts multiple quality checks to ensure that the product meets the design requirements.

Solution Design and Selection:

Based on the gathered information, the professional design team develops a check valve solution. By combining the results of the working condition analysis, the team selects the valve type, specifications, materials, and other parameters, and prepares detailed product drawings and technical specifications.

After-Sales Maintenance and Technical Support

We provide comprehensive after-sales services, establishing customer records and conducting regular follow-ups to monitor product performance.

For any issues encountered during use, we provide timely technical support and, if necessary,

dispatch maintenance personnel to the site for repairs and maintenance, ensuring the check valve operates stably over the long term.

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