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  • koscn-KV402-1

KOSCN KV402 Pneumatic Actuated Butterfly Valve

An economical option for the environmental sector, some sizes offer a fully plastic actuator. Features signal feedback, automatic reset, and fault alarms.

Apply for
• Environmental protection
• Water treatment
• Electroplating
• Circuit boards
• Renewable energy
• Leachate

Data sheet Company Product Brochure

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Easy Installation and Maintenance

Easy Installation and Maintenance

  • Valve bodies conform to ISO and GB installation standards, facilitating easy installation with universal through holes.
  • Handles feature directional indicators for open/close positions.
  • Designed according to ISO5211 standard for straightforward maintenance.
  • Manual and automatic modules are interchangeable, allowing for easy upgrades.
  • All-plastic or aluminum actuator options with compact designs ensure efficient use of installation space.

High Safety Performance

  • Stainless steel valve stems, resistant to corrosion and deformation.
  • Dual-seal groove design in valve seats offers low torque and leak-free operation.
  • Material and seal options available, suitable for general applications excluding pure chemical systems.
  • Intelligent actuator with over-torque protection ensures safe application.
High Safety Performance
High Flexibility

High Flexibility

  • Options include NC (Normally Closed), NO (Normally Open), DA (Double Acting).
  • Valve body materials: PVC-U, PP-H.
  • Seal materials: EPDM, FPM.
  • Connection types: flange clamp.
  • Interface standards: metric, ANSI (American), JIS (Japanese).
  • Equipped with signal feedback for easy selection.

Size

d DN H1 H2 D K S n n
 n
 I b
63 50 114 80 165 123 54 4 4 4 20 44
75 65 128 93 185 143 67 4 4 4 21 48
90 80 140 100 200 157 83 8 8 4 21 53
110 100 160 118 229 186 101 8 8 8 21 57
140 125 167 127 257 213 127 8 8 8 24 68
160 150 170 145 285 240 152 8 8 8 24 73
225 200 213 172 343 296 200 8 12 8 24 92


DN		 H H3 N W
AI PPGF AI PPGF AI PPGF AI PPGF
SR
50 295 312 101 118 81 90 162 176
65 338 351 117 130 95 104 207 192
80 369 370 144 145 121 119 238 230
100 420 * 142 * 123 * 272 *
125 466 * 172 * 137 * 328 *
150 499 * 182 * 148 * 366 *
200 590 * 205 * 164 * 432 *
DA
50 295 312 101 118 81 90 162 176
65 322 339 101 118 81 90 162 176
80 357 370 117 130 95 104 207 192
100 395 423 117 145 95 119 207 230
125 424 * 129 * 106 * 238 *
150 457 * 142 * 123 * 272 *
200 557 * 172 * 137 * 328 *
Unit：mm
Pressure-Temperature Curve

Pressure-Temperature Curve

Data based on pure water medium and 25-year safety life; applications with other media must reduce temperature and pressure.

 

Flow Capacity

Data for 20°C pure water medium and 1bar pressure difference
Cv = Kv X 0.07
Fv = Kv X 0.0585
Kv (liters/min)
Cv (gallons/min) US
Fv (gallons/min) GB

Flow Capacity
Relative Flow Linearity Graph

Relative Flow Linearity Graph

The relative flow linearity coefficient refers to the variation of flow as a function of the valve opening stroke.

 

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
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