KOSCN Control Valves MV303 Pneumatic Diaphragm Valve

The KOSCN MV303, an industrial-grade pneumatic diaphragm valve, offers enhanced high-flow performance with its smooth flow design and optimized mechanics, suitable for high-performance water and chemical systems with a PN10 rating.

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• Water Treatment 
• Semiconductor Electronics 
• Power Generation 
• Steel and Iron/ Metallurgy
• Petrochemicals
• Chlor-Alkali/ Marine Engineering
• Solar/ Nuclear/ Wind Energy

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Convenience and Ease of Maintenance

Convenience and Ease of Maintenance

  • Independent actuator, replaceable and easy to disassemble
  • Built-in pilot solenoid valve base for quick installation
  • Position feedback with protective cover design, suitable for outdoor and harsh environments
  • All-plastic exterior for aesthetics and corrosion resistance
  • Superior lubrication performance, maintenance-free
  • Air intake direction adjustable every 90° for installation in tight spaces
  • Valve dimensions and installation length consistent with international products

High Safety Performance

  • Pre-embedded nozzle thread design, adaptable to various installation strengths
  • Valve body and pneumatic actuator designed with extra pressure margin for safety
  • Smooth flow path provides better protection against water hammer
High Safety Performance
High Flexibility

High Flexibility

  • Dual-control connection, union flange connection
  • Connection standards include metric, JIS, and ANSI
  • Diaphragm materials: EPDM, FPM, EPDM-PTFE
  • Valve body materials: PVC-U, PVC-C, PP-H, PVDF
  • PP-H, PVDF products available with oil-free option

Optimal Flow Performance

  • Smooth transitional flow paths with low pressure loss, flow coefficient twice that of traditional diaphragm valves
  • Superior flow path allows for precise control and regulation
  • Suitable for media containing small particles and solids
Optimal Flow Performance

KOSCN

Founded in 2005 and headquartered at the forefront of China's reform and opening-up in Shenzhen, KOSCN Industrial Manufacturing (Shenzhen) Co., Ltd. has expanded its presence with subsidiaries and offices in Suzhou, Chengdu, Changsha, Hong Kong, and even overseas in Germany. With a robust network of pre-sales and after-sales agency teams spread across China and abroad, KOSCN stands as a global enterprise specializing in the manufacture of fluid control products for ultra-pure and corrosive systems, including automation valves and instrumentation.

Holding numerous patents, KOSCN is recognized as a high-tech and specialized enterprise. Its products are widely used across various sectors, including semiconductors, glass panels, electroplating, wastewater treatment, waste fluid solidification, photovoltaics, leachate from landfills, circuit boards, metallurgy, steel, ultra-wastewater, recycling, chemical, food and beverage, power, paper, biopharmaceuticals, and bio-fermentation.

As a system supplier offering countless solutions across a broad spectrum of industries, KOSCN boasts a professional team that covers every aspect from research and development to design, from quality assurance to production, and from mold making to injection molding. Adhering to ISO9001, ISO140001, and ISO45001 standards, KOSCN commits to quality, environmental sustainability, and health, ensuring high-end product quality for modern production methods.

KOSCN