en.Wedoany.com Reported - Zhejiang Paiwo Auto-Control Instrument Co., Ltd. (Paiwo Auto-Control), a domestic specialized control valve enterprise, announced that its Class 10,000 cleanroom workshop has been completed and put into operation, achieving upgrades in both production capacity and quality to meet the demands of high cleanliness and high safety conditions in industries such as pharmaceuticals, food, semiconductors, lithium batteries, and new energy.
Founded in 1994, Paiwo Auto-Control is a national high-tech enterprise, an E4-1 maintenance unit of the China Special Equipment Inspection and Research Institute, a provincial-level enterprise R&D center in Zhejiang, and a "Specialized and New" demonstration enterprise. It has focused on the R&D and production of specialized control valves for nearly 40 years. Its products are widely used in industries such as petroleum, chemicals, pharmaceuticals, polysilicon, lithium batteries, and semiconductors, building a market reputation in high-cleanliness process scenarios.
Industries such as pharmaceuticals, new energy, semiconductors, and medical oxygen supply have increasingly stringent requirements for the cleanliness, sterility, explosion-proof safety, and operational stability of control valves. Ordinary processing workshops struggle to meet the production standards for high-purity oxygen media and sterile fluids. To address this, Paiwo Auto-Control invested in building a Class 10,000 cleanroom workshop to fill the capacity gap for high-end clean valves and oxygen environment control valves, solving safety and cleanliness issues in the production of oxygen-based media.
The newly operational Class 10,000 cleanroom workshop is designed and constructed according to ISO Class 7 cleanliness standards, with controls over particulate matter, temperature and humidity, differential pressure, and static electricity. It meets the production requirements for oxygen valves, including oil-free, degreased, explosion-proof, and high-purity clean conditions. The workshop is equipped with machinery such as Doosan horizontal machining centers from South Korea, Mazak CNC machine tools from Japan, Germany's Spectro direct-reading spectrometers, and coordinate measuring machines, forming a production process of "precision machining – clean assembly – sterile degreasing – comprehensive inspection – dust-free packaging." This workshop primarily produces oxygen environment control valves, sanitary control valves, sterile diaphragm valves, and high-purity media control valves. All oxygen-based control valves undergo multi-stage ultrasonic degreasing and nitrogen purging processes, with residual oil content meeting high-purity oxygen operating standards. They are suitable for applications such as industrial air separation oxygen pipelines, centralized medical oxygen supply, semiconductor high-purity oxygen delivery, and new energy oxygen-enriched processes.
Following the commissioning of the Class 10,000 cleanroom workshop, Paiwo Auto-Control's annual production capacity for high-end clean and specialized oxygen environment control valves has increased by 40%, enabling batch delivery of customized products with high cleanliness, zero contamination, high explosion-proof capability, and long service life. Leveraging the production system of the cleanroom workshop, oxygen environment control valves have resolved issues such as oil residue, particulate impurities, and seal leakage. The products' oxidation resistance, anti-static properties, and explosion-proof performance have been enhanced, while sealing precision and operational stability have improved.
Paiwo Auto-Control has participated in the formulation of 23 national or industry standards and holds 43 patented technologies. The commissioning of this cleanroom workshop represents a strategic move by the company to focus on high-end manufacturing of clean valves and specialized oxygen valves, helping to provide control valve equipment support for industries such as pharmaceuticals, new energy, semiconductors, and air separation oxygen supply.
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