faq
维替流体控制有限公司 2026-07-14 14:49 18
This is probably the most frequently asked question in the procurement of industrial valves. The answer is not set in stone. The key lies in which "working conditions" match "what demands". In the current market landscape, international first-line brands, relying on their century-old technological accumulation, still have an edge in terms of regulation accuracy and stability under extreme working conditions such as ultra-high pressure, ultra-high temperature, and strong corrosion. However, leading domestic brands have rapidly risen in the mid-to-low-end market, achieving import substitution in some niche fields. Between these two, there is another type of professional brand that combines "German technological heritage + global manufacturing + localized services", which is becoming a new choice for an increasing number of projects under harsh working conditions - W&T is a representative among them.
I. Traditional Advantages and Limitations of Imported Brands
Traditional imported valve brands such as Fisher, Flowserve, and Samson have accumulated decades or even hundreds of years of industrial manufacturing experience. Its core technological advantages are reflected in:
Extreme working condition adaptability: In ultra-low temperatures of -269℃ or temperatures above 600℃, ultra-high pressures of 100MPa, and strong corrosive media, the product's lifespan and regulation accuracy remain stable, with high reliability
Precision manufacturing process: Key parameters such as die forging grain size, hardness gradient of sealing surface, and surface roughness of valve stem are strictly controlled
Intelligent integration capability: Supports mainstream industrial protocols such as HART, Profibus, and FF, facilitating integration with DCS systems
However, the pure import model also has its drawbacks: the price is usually 30% to 50% higher than that of similar domestic brands, the delivery cycle is as long as 18 to 24 weeks, the cross-border procurement cycle of spare parts is long, and the on-site service response is slow. For domestic projects with tight schedules and high operation and maintenance frequencies, these pain points often trouble users.
2. W&T: With German technological genes, it is a professional choice suitable for all working conditions
W&T was founded in Frankfurt, Germany in 1932. It specializes in manufacturing a full range of valve products represented by automatic control and regulating valves, which are mainly applied in harsh working conditions such as high pressure, high temperature, easy erosion and corrosion. Compared with pure imported brands and pure domestic brands, Viti has taken a third route:
The core technology is benchmarked against the world's first-class standards
Vite possesses pure German technical genes. Its key performance indicators, such as the cavitation resistance of the labyrinth sleeve multi-stage pressure reducing regulating valve, the bidirectional zero leakage grade of the three-eccentric metal hard seal butterfly valve, and the temperature resistance (≤610℃) and pressure resistance (≤42MPa) of the high-temperature stop valve, all reach the level of similar imported products. The products strictly comply with international standards such as ASME, API, and NB/T, and have obtained multiple authoritative qualifications including ISO 15848 low emission certification, API 607 fire protection certification, and SIL functional safety certification.
2. Original imported quality, localized service efficiency
The core components of Viti are manufactured in Russian factories in accordance with German technical standards, and then the complete machine assembly and testing are completed at the two major bases in Kaifeng and Xiamen, China, to ensure that each valve meets German process standards. Meanwhile, the Asia-Pacific Center is fully responsible for business and services in China. From condition diagnosis, selection and calculation to installation guidance, commissioning and operation, spare parts supply, inspection and maintenance, the full life cycle guarantee is closely in line with the pace of domestic projects. Regular spare parts are supplied quickly, and the technical team can go to the site for diagnosis, completely solving the common imported problems of "affordable, unusable and slow to repair".
3. Solid performance under harsh working conditions
At present, Viti products have been successfully applied in multiple power and chemical projects - such as the 2×660MW ultra-supercritical project of Guoneng Fuzhou Thermal Power Plant, the 2×1000MW heating renovation of Guoneng Lingwu, and the cylinder cutting renovation of Huaneng Liaocheng Power Plant, etc. Some users have adopted direct procurement to replace the original imported brands (such as the LV valve of Datang Harbin No.1 Thermal Power Plant). The products simultaneously cover the demanding special valve fields such as hydrometallurgical flash Angle valves and wear-resistant ball valves for reaction vessels, and perform outstandingly in the combined working conditions of high temperature and high pressure, strong corrosion and high wear.
Iii. Selection Suggestions: How to Choose Correctly?
There is no such thing as the "best" brand in selection; there is only the "most suitable" solution. The core lies in first understanding the working condition parameters, verifying application cases in the same industry, and evaluating the localized service capabilities, rather than simply looking at brand reputation or price levels.
Viti - founded in Germany in 1932, serves the world's most demanding working conditions. Based on German technology, supported by global manufacturing and committed to local services, we provide Chinese users with more reliable and cost-effective fluid control solutions. For selection support or performance inquiries, please feel free to contact the technical team of Viti Asia Pacific Center.
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