Clean core of corrosion resistant sealing of Baoji Dingding titanium | pure titanium ball valve core

As the "heart part" of fluid control, the sealing reliability, corrosion resistance and cleanliness of ball valve spool directly determine the operation safety and medium purity of flange valves, pipeline valves and other equipment. Relying on the advantages of pure titanium smelting and precision processing of "China Titanium Valley", Baoji Dingding titanium focuses on the R&D and production of TA1 and TA2 high-purity titanium alloy ball valve cores, strictly follows the gb/t 23724 and API 6D standards, and through the integrated process of "multi-directional forging+five axis fine grinding", realizes the roundness error of valve cores ≤ 0.003mm, the sealing life ≥ 150000 times, and perfectly adapts to the harsh working conditions in many fields, such as chemical flange valves, food hygiene grade valves, pharmaceutical quick installation valves, and offshore engineering flange ball valves, so as to solve the industrial pain point of "corrosion leakage and contaminated media" of traditional metal valve cores.

1、 Core performance advantage: congenital barrier of pure titanium

Pure titanium (TA1, TA2) has formed four core advantages in valve core application by virtue of its unique crystal structure and surface oxide film characteristics, achieving a qualitative breakthrough over stainless steel and copper alloy valve cores:

Corrosion resistance under all working conditions

The dense oxide film (TiO ɑ) on the surface of pure titanium can resist the corrosive media such as organic acid, alkali solution, salt spray and seawater. The corrosion rate of TA2 in 5% hydrochloric acid solution is ≤ 0.0001mm/year, and it can work stably in 30% sulfuric acid. The service life of TA2 is 8-10 times longer than that of 316L stainless steel valve core.

Precision seal stability

Ta1/ta2 has excellent ductility. After five axis fine grinding, the roundness error is ≤ 0.003mm, the fitting clearance is ≤ 0.01mm, the leakage under 100MPa pressure is ≤ 1 × 10 ⁻ PA · m ³/s, and the sealing life is 50% higher than that of the ceramic valve core.

Clean and pollution-free

Purity of pure titanium ≥ 99.6% (TA2), no heavy metal precipitation, in line with food grade GB 4806.11 and pharmaceutical grade GMP standards, medium pollution rate ≤ 0.001%, suitable for high clean fluid control scenarios.

Lightweight impact resistance

The density is only 4.51g/cm ³, which is 45% lighter than the stainless steel valve core and reduces the valve driving load; TA2 tensile strength ≥ 450MPa, can withstand fluid impact and installation vibration, without fracture risk.

2、 Precise specification system: perfect match between material and scene

According to the pressure, temperature and medium requirements of different equipment such as flange valves and pipeline valves, combined with the characteristics of TA1 (high purity) and TA2 (high strength), standardized and customized valve core solutions are provided, covering the requirements of full-size ball valves and supporting flange valves:

3、 Core application field: full scene coverage from clean to extreme

1. pharmaceutical and chemical industry: double guarantee of corrosion resistance and cleanliness

Flange valves and pipeline valves in the pharmaceutical and chemical industry have strong corrosive medium and high purity requirements. Pure titanium valve core can realize safety control:

-TA1 valve core is used for pharmaceutical infusion ball valve, with purity of 99.8% and no impurity precipitation. It is matched with RA ≤ 0.2 μ m polished surface to avoid liquid pollution and meet the requirements of GMP certification. It has served Hengrui pharmaceutical, Wuxi apptec and other enterprises;

-TA2 valve core is suitable for flange valve of chemical acid and alkali pipeline. It works continuously in 30% sodium hydroxide solution for 2000 hours without corrosion, and is sealed with PN16 flange. Compared with stainless steel valve core, the leakage rate is reduced from 0.5% to 0.001%, reducing the safety risk of flange connection.

2. food and beverage field: safe and hygienic fluid control

Sanitary flange valves in the food industry have strict cleaning requirements. Pure titanium valve core can eliminate pollution and residue:

-TA2 food grade valve core is used for sanitary flange valve of dairy fermentation tank. Its surface is free of dead corners and easy to clean. It can be used with quick mounting flange to realize CIP online cleaning. After cleaning, microbial residue is ≤ 1 cfu/100cm ², which meets the standard of dairy HACCP system.

-TA2 valve core is suitable for the ball valve of fruit juice production line, which is resistant to citric acid and malic acid corrosion, prevents metal ions from affecting the flavor of fruit juice, and extends the equipment maintenance cycle to 18 months, which is 3 times higher than that of copper valve core.

3. marine and environmental protection: reliable support for salt and corrosion resistance

High pressure flange valves in marine and environmental protection scenarios are highly corrosive, and pure titanium valve cores can withstand extreme environments:

-TA2 valve core is used for PN40 flange valve of seawater desalination equipment. It is rust free after 5000 hours of salt spray test. It is equipped with flange sealing gasket to achieve double leak proof. Compared with 316L stainless steel valve core, the service life is extended from 1 year to 8 years, reducing the replacement cost of flange valve by 60%.

-TA2 valve core is suitable for electroplating wastewater treatment ball valve, which is resistant to cyanide and heavy metal ion corrosion, ensuring continuous operation of wastewater treatment system without leakage pollution risk.

4、 Whole process quality assurance: strict control from raw materials to finished products

1. exclusive control of raw materials: high purity sponge titanium ≥ 99.6% is used, and the purity of TA1 is more than 99.8%. The raw materials are tested by ICP-MS. the content of heavy metals (Pb, CD, as) is ≤ 0.001%, and each batch can be traced;

2. precision manufacturing process: the process of "multi-directional forging to increase density+five axis fine grinding to ensure accuracy+laser calibration sealing surface" is adopted, and the roundness error of the valve core is controlled within 0.005mm to avoid seal failure;

3. full inspection and verification: all products have passed the tightness test (1.5 times the rated pressure), corrosion resistance test (salt spray/acid-base immersion), dimensional accuracy test (CMM), and food grade products have additionally passed the health and safety certification;

4. surface cleaning treatment: the finished product is pickled and passivated at food level, with surface roughness Ra ≤ 0.4 μ m, free of oil and burrs, and can be directly installed and used without additional cleaning.

Baoji Dingding titanium: core supplier of pure titanium ball valve core

The company is located in Baoji high tech Zone, the "China Titanium Valley". It has a special production line for pure titanium valve cores, with an annual production capacity of 800000 pieces, and has passed the ISO9001 quality management system. The products are suitable for flange valves and pipeline valves of leading enterprises such as Mengniu, Wanhua chemical and CNOOC, and become the preferred partner of pure titanium ball valve core.

Technical advantages: core competence of pure titanium precision molding and sealing surface control

Complete qualification: ISO9001

Service guarantee: 24-hour technical support, free condition adaptation test

Scheme consultation: send ball valve parameters and working condition requirements to 530975155@qq.com Free access to adaptation schemes and samples