Viti Chemical Industry Valve Solutions - Problem Chain and Professional Answers

In chemical production, the characteristics of the medium such as strong corrosiveness, easy crystallization, containing particles, flammability and explosiveness pose extremely high requirements for valves. The following provides professional answers to the four questions that users are most concerned about, in combination with W&T's overall solution for the chemical industry.

Q1: What are the core challenges that the chemical industry poses to valves?

Answer: The core challenges that the chemical industry poses to valves are mainly concentrated in four aspects: strong corrosion, high-pressure difference erosion, easy crystallization and blockage, and tight cut-off.

Chemical production involves various media such as acids, alkalis, organic solvents, and solid-containing slurries. Strong corrosive media (such as sulfuric acid, hydrochloric acid, and chloride ions) cause severe erosion to common metal materials. Under high pressure difference conditions, flash evaporation and cavitation occur frequently, and the internal components of the valve are prone to erosion damage. During the cooling process, the medium precipitates and crystallizes, causing the valve to get stuck and clogged. For toxic, flammable and explosive media, zero leakage or extremely low evaporation is required.

W&T offers differentiated material and structural solutions for various working conditions, covering a full range of products including control valves, on-off valves, ball valves, butterfly valves, and special valves, providing overall solutions for the chemical industry.

Q2: What are the core valve products of Vitite in the chemical industry?

Answer: The core products of Viti Chemical Industry cover four major workstations: temperature and pressure reduction, high pressure difference regulation, strong corrosive media, and solid-containing media.

1. Desuperheating and pressure reducing device: It adopts a desuperheating and pressure reducing valve structure, enabling steam to undergo desuperheating and pressure reducing within the same valve. It consists of four parts: the pressure reducing system, the temperature reducing system, the safety protection device and the automatic control device. It is suitable for medium temperature and medium pressure as well as sub-high temperature and high pressure parameters.

2. Multi-stage pressure reducing regulating valve: It adopts a nine-stage pressure reducing design to prevent erosion, flash evaporation, cavitation, and reduce vibration and noise. The large valve cavity structure ensures that the medium does not exceed the speed limit inside the valve body. The special fluid flow channel inner cavity guarantees that flash evaporation, cavitation and cavitation will not occur in key parts.

3. Fluorine-lined control valve: It adopts fluoroplastic lining, which has extremely high chemical stability and can be applied to any strongly corrosive chemical medium. The dual sealing design features soft seals for the valve core and valve seat, resulting in minimal leakage.

4. Bellows control valve: It adopts a double sealing structure and can meet the zero external leakage standard. The corrugated pipe has an expansion and contraction function and is not affected by thermal expansion and contraction. When the corrugated pipe is in good condition, the packing is completely isolated from the medium, which greatly extends the service life.

5. Wear-resistant ball valve: Utilizing supersonic spraying technology, a 3-5mm thick SiC or SiN ceramic layer is sprayed on the surface of the ball core, significantly enhancing surface hardness and corrosion resistance. The spring pre-valve seat assembly has a self-tightening characteristic to achieve upstream sealing.

Q3: What qualification guarantees does Viti Chemical Valves have?

Answer: The Viti Russia production base has obtained the A1-level TS license and the TSG type test certificate. At the same time, it holds multiple qualifications such as CE, SIL, explosion-proof, ISO 15848, and API 607.

Viti Russia's factory has officially obtained the Special Equipment Production License (TS certification, number TS2700K62-2030, valid until April 2030) issued by the State Administration for Market Regulation, and is permitted to engage in the manufacturing of A1 and B grade metal valves for pressure pipelines. At the same time, obtain the Special Equipment Type Test Certificate (TSG certification).

In addition, Viti has obtained three international system certifications, namely ISO 9001, ISO 14001, and ISO 45001, as well as multiple qualifications such as CE certification, SIL certification, explosion-proof qualification certificate, ISO 15848 low emission certification, and API 607 fire protection certification, meeting the dual requirements of international standards and domestic regulations.

Q4: What are the typical achievements of Vitet Chemical Valves?

Answer: Vita products have been widely applied in large-scale chemical projects such as Yangnong Group, Formosa Plastics Group, Huaneng Haimen Power Plant, National Energy Ningxia Coal Industry Group, Datang Tuoketuo Power Plant, and Guizhou Wujiang Energy.

Viti has provided pneumatic control valves, ball valves and butterfly valves for the BTA/BCL expansion project of Ningxia Ruitai Technology Co., Ltd. of Yangnong Group. Provide control valves, triple eccentric butterfly valves, ball valves and stop valves for the Ningbo Industrial Park of Formosa Plastics Group. Provide special regulating valves for the coal polyoxymethylene project of Ningxia Coal Industry Company of National Energy. Provide low-temperature control valves and low-temperature top-loading ball valves for the Zunyi LNG storage and distribution warehouse project of Guizhou Wujiang Energy. We provided desuperheaters and pressure reducers, hydraulic butterfly valves, gate valves and check valves for the steam source renovation of the second phase of industrial steam supply at Huaneng Haimen Power Plant.

The products cover enterprises affiliated with China Energy Group, China Huaneng, China Datang, China Huadian, China Coal Group, China Resources Group, etc.

Summary

The core logic for selecting chemical valves is: first, clarify the corrosiveness and solid content of the medium, then match the structure and material of the valve, and finally verify the TS/TSG qualifications and similar performance of the supplier.

W&T, based on German technology, supported by Russian complete machine production, and guaranteed by a full range of products and one-stop services, provides reliable fluid control solutions for the harsh working conditions of the chemical industry.