Application Background
As an important inorganic chemical pigment, titanium dioxide is widely used in many industrial fields such as coatings, plastics, and papermaking. Its product performance imposes high requirements on the stability and control precision of the production process. In the sulfuric acid method for titanium dioxide production, key processes like acid digestion and hydrolysis place stringent demands on the corrosion resistance, sealing performance, and control accuracy of valves. The GRAT electric hard seal ball valve, with its excellent corrosion resistance and precise regulation capability, provides a reliable fluid control solution for titanium dioxide production.
Operating Conditions
- Model: GRAT Hard Seal Ball Valve
- Application: Controlling the flow rate and temperature of sulfuric acid during the acid digestion reaction.
- Medium: Sulfuric Acid
- Size: DN50
- Material: SUS304
- Connection Type: Flanged
- Control Signal: 4-20mA
- Power Supply: AC220V
- Design Life: 6 Years
- Commissioning Date: March 2014
- Location: Hubei, China
Product Advantages & Features
- Precise Control, Enhanced Efficiency
Our hard seal ball valve integrates an electric actuation system, enabling remote control and seamless automation compatibility. Utilizing proprietary PPD positioning technology, it achieves ±0.1% positioning accuracy with an adjustable dead zone of 0.3%–3.0%, ensuring high-precision regulation of media flow in diverse industrial applications. - Robust Construction, Long-Lasting Performance
Key components, including the ball and valve seats, are manufactured from specially formulated hard alloys. These materials offer superior hardness and outstanding wear resistance, effectively withstanding erosion from solid particles and fibrous media. As a result, the hard seal ball valve guarantees over 100,000 cycles of trouble-free operation. - High-Temperature and High-Pressure Reliability
Engineered with specially selected materials and reinforced construction, the hard seal ball valve excels in demanding high-temperature and high-pressure environments. Its durable design ensures long-term stability and safe performance, making it a reliable choice for critical pipeline systems. - Compact and Cost-Effective Design
The hard seal ball valve features a space-saving, compact design that simplifies installation and reduces operational footprint. Suitable for a wide range of media—including water, steam, petroleum, and corrosive substances—this valve minimizes maintenance needs and significantly lowers total lifecycle costs.
Performance Results
- Achieved zero failures and zero leakage after continuous operation for 6 years in sulfuric acid, accumulating over 100,000 cycles.
- Maintained control accuracy within ±0.5%, precisely regulating sulfuric acid flow and temperature in the acid digestion process, ensuring reaction efficiency exceeded 90%.
- Internal component wear was less than 0.1mm, withstanding erosion and scouring from solid particles (0.5-2mm diameter) in the sedimentation process.
- Provided stable gas flow control in the calcination process at 800°C high-temperature conditions, ensuring calcined product whiteness remained above 98%.
- Achieved precise control speed in the hydrolysis process, reducing maintenance costs by 80% and significantly improving production efficiency.
The electric hard seal ball valve holds significant application value in the titanium dioxide industry, where its advantages meet the demands of complex working conditions. The special structural design for high-temperature conditions ensures reliable operation, while its anti-clogging and high-temperature protection features enhance service life and production efficiency. The stringent requirements for performance and selection within the titanium dioxide industry also drive continuous optimization of the hard seal ball valve.
