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KOSCN Scientific MV300 Pneumatic Diaphragm Valve

KOSCN Control Valves M300 Compact diaphragm valve, duckbill flow design, optimal flow capacity, overpressure margin, high-temperature and corrosion resistance, ideal for frequent operations.

Brand： KOSCN
Valve Types： Pneumatic Diaphragm Valve
Body materials： PVC-U, CPVC, PP-H, PVDF, SUS
Diaphragms materials： EPDM, FPM, PTFE
Pneumatic control： NC、NO、DA
Pressure Rating： PN6

Catalog Manual

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Convenience and Maintenance

Convenience and Maintenance

  • Integrated compact design ensures installation in limited spaces.
  • All-plastic exterior with no exposed metal parts or bolts, offering an aesthetic and corrosion-resistant finish.
  • Diaphragm embedded design for even stress distribution, extending lifespan.
  • Superior lubrication performance, maintenance-free.
  • G thread double regulation, ensuring consistent installation length with international market valves.
  • Integrated visual position feedback, easy to monitor.
  • Laser-engraved text and numbers for clear, long-lasting identification.
     

High Safety Performance

  • Valve body and pneumatic actuator designed with overpressure margin for guaranteed safety.
  • Available in multiple materials to withstand high temperatures and corrosion.
  • Optimized curvature ensures effective valve closure in high-flow applications.
  • High-temperature resistant diaphragm stopper for improved sealing performance.
High Safety Performance
High Flexibility

High Flexibility

  • Actuators available in NC, NO, DA options.
  • Diaphragms in EPDM, FPM, PTFE, suitable for water, acids, and alkaline mediums.
  • Valve body materials include PVC-U, CPVC, PP-H, PVDF.
  • Connection standards available in DIN, JIS, and ANSI.
  • High quality and reliability, capable of high operation frequency.
     

Optimal Flow Performance

  • Excellent linear fluid characteristics for simple control.
  • Smooth transition duckbill passage, achieving double the flow capacity of traditional diaphragm valves.
  • Suitable for mediums containing small particles and solids.
     
Optimal Flow Performance

Disassembled Components and Material Structure Selection

NO Part Names
 Materials
1 Cylinder Head
2 Piston
3 Intake Nozzle
 NC、NO、DA
4 Cylinder Head Support Block
5 Diaphragm Pressure Block
6 Diaphragm Sheet
 EPDM、FPM、PTFE
7 Valve Body
 PVC-U、CPVC、PP-H、PVDF
8 NC Spring
 NC Spring
9 NC Spring
 NC Spring
10 Valve Position Indicator Valve Position Indicator

Size

NO Size(mm) NO Size(mm)
D 57 L 198
 D1_G 1/4 L1 130
D2 46 L2 25
H 89 M 6
H1 14 Z
 89
H2 46 W 57
H3 30 W1 57
H4 39 Lift=Hx
 6

How to Order

Please consult the table below based on your requirements for valve body material, air inlet mechanism, applicable pipe diameter, pressure, etc., and click on the product name. This will take you to the product number list. Refer to the product number list for the product number you wish to inquire about and inform your sales representative during the inquiry process.
Body PVC-U Actuator variant NC
Size d (mm) 20

DN (mm)
 15

DN (Inch) 1/2
Pressure range
 PN (bar)
 6


Diaphragm
 Sealing Ident No.
Connection
 PVC-U EPDM
 EPDM 300.012.1200

Socket DIN EPDM-PER
 EPDM 300.022.1200

FPM
 FPM 300.032.1200

  FPM-70
 FPM 300.042.1200

  PTFE
 FPM 300.062.1200

PVC-U EPDM
 EPDM 300.012.1200

Socket JIS EPDM-PER
 EPDM 300.022.1200

  FPM
 FPM 300.032.1200

  FPM-70
 FPM 300.042.1200

  PTFE
 FPM 300.062.1200

PVC-U EPDM
 EPDM 300.012.1200

Socket ANSI EPDM-PER
 EPDM 300.022.1200

  FPM
 FPM 300.032.1200

  FPM-70
 FPM 300.042.1200

  PTFE
 FPM 300.062.1200
Body PVC-U Actuator variant NO
Size d (mm) 20

DN (mm)
 15

DN (Inch) 1/2
Pressure range
 PN (bar)
 6


Diaphragm
 Sealing Ident No.
Connection
 PVC-U EPDM
 EPDM 300.014.1200

Socket DIN EPDM-PER
 EPDM 300.024.1200

FPM
 FPM 300.034.1200

  FPM-70
 FPM 300.044.1200

  PTFE
 FPM 300.064.1200

PVC-U EPDM
 EPDM 300.014.1200

Socket JIS EPDM-PER
 EPDM 300.024.1200

  FPM
 FPM 300.034.1200

  FPM-70
 FPM 300.044.1200

  PTFE
 FPM 300.064.1200

PVC-U EPDM
 EPDM 300.014.1200

Socket ANSI EPDM-PER
 EPDM 300.024.1200

  FPM
 FPM 300.034.1200

  FPM-70
 FPM 300.044.1200

  PTFE
 FPM 300.064.1200
Body PVC-U Actuator variant DA
Size d (mm) 20

DN (mm)
 15

DN (Inch) 1/2
Pressure range
 PN (bar)
 6


Diaphragm
 Sealing Ident No.
Connection
 PVC-U EPDM
 EPDM 300.016.1200

Socket DIN EPDM-PER
 EPDM 300.026.1200

FPM
 FPM 300.036.1200

  FPM-70
 FPM 300.046.1200

  PTFE
 FPM 300.066.1200

PVC-U EPDM
 EPDM 300.016.1200

Socket JIS EPDM-PER
 EPDM 300.026.1200

  FPM
 FPM 300.036.1200

  FPM-70
 FPM 300.046.1200

  PTFE
 FPM 300.066.1200

PVC-U EPDM
 EPDM 300.016.1200

Socket ANSI EPDM-PER
 EPDM 300.026.1200

  FPM
 FPM 300.036.1200

  FPM-70
 FPM 300.046.1200

  PTFE
 FPM 300.066.1200
Body CPVC Actuator variant NC
Size d (mm) 20

DN (mm)
 15

DN (Inch) 1/2
Pressure range
 PN (bar)
 6


Diaphragm
 Sealing Ident No.
Connection
 PVC-U EPDM
 EPDM 300.212.1200

Socket DIN EPDM-PER
 EPDM 300.222.1200

FPM
 FPM 300.232.1200

  FPM-70
 FPM 300.242.1200

  PTFE
 FPM 300.262.1200

PVC-U EPDM
 EPDM 300.212.1200

Socket JIS EPDM-PER
 EPDM 300.222.1200

  FPM
 FPM 300.232.1200

  FPM-70
 FPM 300.242.1200

  PTFE
 FPM 300.262.1200

PVC-U EPDM
 EPDM 300.212.1200

Socket ANSI EPDM-PER
 EPDM 300.222.1200

  FPM
 FPM 300.232.1200

  FPM-70
 FPM 300.242.1200

  PTFE
 FPM 300.262.1200
Body CPVC Actuator variant NO
Size d (mm) 20

DN (mm)
 15

DN (Inch) 1/2
Pressure range
 PN (bar)
 6


Diaphragm
 Sealing Ident No.
Connection
 PVC-U EPDM
 EPDM 300.214.1200

Socket DIN EPDM-PER
 EPDM 300.224.1200

FPM
 FPM 300.234.1200

  FPM-70
 FPM 300.244.1200

  PTFE
 FPM 300.264.1200

PVC-U EPDM
 EPDM 300.214.1200

Socket JIS EPDM-PER
 EPDM 300.224.1200

  FPM
 FPM 300.234.1200

  FPM-70
 FPM 300.244.1200

  PTFE
 FPM 300.264.1200

PVC-U EPDM
 EPDM 300.214.1200

Socket ANSI EPDM-PER
 EPDM 300.224.1200

  FPM
 FPM 300.234.1200

  FPM-70
 FPM 300.244.1200

  PTFE
 FPM 300.264.1200
Body CPVC Actuator variant DA
Size d (mm) 20

DN (mm)
 15

DN (Inch) 1/2
Pressure range
 PN (bar)
 6


Diaphragm
 Sealing Ident No.
Connection
 PVC-U EPDM
 EPDM 300.216.1200

Socket DIN EPDM-PER
 EPDM 300.226.1200

FPM
 FPM 300.236.1200

  FPM-70
 FPM 300.246.1200

  PTFE
 FPM 300.266.1200

PVC-U EPDM
 EPDM 300.216.1200

Socket JIS EPDM-PER
 EPDM 300.226.1200

  FPM
 FPM 300.236.1200

  FPM-70
 FPM 300.246.1200

  PTFE
 FPM 300.266.1200

PVC-U EPDM
 EPDM 300.216.1200

Socket ANSI EPDM-PER
 EPDM 300.226.1200

  FPM
 FPM 300.236.1200

  FPM-70
 FPM 300.246.1200

  PTFE
 FPM 300.266.1200
Body PP-H Actuator variant NC
Size d (mm) 20

DN (mm)
 15

DN (Inch) 1/2
Pressure range
 PN (bar)
 6


Diaphragm
 Sealing Ident No.
Connection
 PP-H EPDM
 EPDM 300.412.1200

Socket DIN EPDM-PER
 EPDM 300.422.1200

FPM
 FPM 300.432.1200

  FPM-70
 FPM 300.442.1200

  PTFE
 EPDM 300.452.1200

  PTFE
 FPM 300.462.1200

PP-H EPDM
 EPDM 300.412.1200

Spigot DIN EPDM-PER
 EPDM 300.422.1200

  FPM
 FPM 300.432.1200

  FPM-70
 FPM 300.442.1200

  PTFE
 EPDM 300.452.1200

  PTFE
 FPM 300.462.1200
Body PP-H Actuator variant NO
Size d (mm) 20

DN (mm)
 15

DN (Inch) 1/2
Pressure range
 PN (bar)
 6


Diaphragm
 Sealing Ident No.
Connection
 PP-H EPDM
 EPDM 300.414.1200

Socket DIN EPDM-PER
 EPDM 300.424.1200

FPM
 FPM 300.434.1200

  FPM-70
 FPM 300.444.1200

  PTFE
 EPDM 300.454.1200

  PTFE
 FPM 300.464.1200

PP-H EPDM
 EPDM 300.414.1200

Spigot DIN EPDM-PER
 EPDM 300.424.1200

  FPM
 FPM 300.434.1200

  FPM-70
 FPM 300.444.1200

  PTFE
 EPDM 300.454.1200

  PTFE
 FPM 300.464.1200
Body PP-H Actuator variant DA
Size d (mm) 20

DN (mm)
 15

DN (Inch) 1/2
Pressure range
 PN (bar)
 6


Diaphragm
 Sealing Ident No.
Connection
 PP-H EPDM
 EPDM 300.416.1200

Socket DIN EPDM-PER
 EPDM 300.426.1200

FPM
 FPM 300.436.1200

  FPM-70
 FPM 300.446.1200

  PTFE
 EPDM 300.456.1200

  PTFE
 FPM 300.466.1200

PP-H EPDM
 EPDM 300.416.1200

Spigot DIN EPDM-PER
 EPDM 300.426.1200

  FPM
 FPM 300.436.1200

  FPM-70
 FPM 300.446.1200

  PTFE
 EPDM 300.456.1200

  PTFE
 FPM 300.466.1200
Body PVDF Actuator variant NC
Size d (mm) 20

DN (mm)
 15

DN (Inch) 1/2
Pressure range
 PN (bar)
 6


Diaphragm
 Sealing Ident No.
Connection
 PVDF FPM
 FPM 300.632.1200

Socket DIN FPM-70
 FPM 300.642.1200

PTFE
 FPM 300.662.1200

PVDF EPDM
 EPDM 300.612.1200

 Spigot DIN EPDM-PER
 EPDM 300.622.1200

  FPM
 FPM 300.632.1200

  FPM-70
 FPM 300.642.1200


PTFE
 EPDM 300.652.1200

  PTFE
 FPM 300.662.1200
Body PVDF Actuator variant NO
Size d (mm) 20

DN (mm)
 15

DN (Inch) 1/2
Pressure range
 PN (bar)
 6


Diaphragm
 Sealing Ident No.
Connection
 PVDF FPM
 FPM 300.634.1200

Socket DIN FPM-70
 FPM 300.644.1200

PTFE
 FPM 300.664.1200

PVDF EPDM
 EPDM 300.614.1200

 Spigot DIN EPDM-PER
 EPDM 300.624.1200

  FPM
 FPM 300.634.1200

  FPM-70
 FPM 300.644.1200


PTFE
 EPDM 300.654.1200

  PTFE
 FPM 300.664.1200
Body PVDF Actuator variant DA
Size d (mm) 20

DN (mm)
 15

DN (Inch) 1/2
Pressure range
 PN (bar)
 6


Diaphragm
 Sealing Ident No.
Connection
 PVDF FPM
 FPM 300.636.1200

Socket DIN FPM-70
 FPM 300.646.1200

PTFE
 FPM 300.666.1200

PVDF EPDM
 EPDM 300.616.1200

 Spigot DIN EPDM-PER
 EPDM 300.626.1200

  FPM
 FPM 300.636.1200

  FPM-70
 FPM 300.646.1200


PTFE
 EPDM 300.656.1200

  PTFE
 FPM 300.666.1200

KOSCN

KOSCN Industrial Manufacturing (Shenzhen) Co., Ltd., founded in 2005 and headquartered in Shenzhen, China, operates globally with subsidiaries and agent teams. It offers comprehensive pre-sales and after-sales services worldwide. KOSCN has a professional R&D, design, and production team, adhering strictly to ISO9001, ISO14001, and ISO45001 standards to ensure the highest product quality.

KOSCN's products, mainly automated valves for ultra-pure and corrosive systems, are widely used in semiconductor, glass panel, electroplating, wastewater treatment, waste liquid solidification, solar energy, landfill leachate, PCB, metallurgy, steel, ultra-pure water, recycling, chemical, food and beverage, power, paper, biopharmaceutical, and biofermentation industries.

Download: KOSCN Product Brochure

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