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

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Catalog Manual

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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 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.

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

Flow Performance

Compatible with various materials, the standard 1/2" pipe diameter design ensures a stable flow rate of 125 l/min at 20°C water temperature and 1 bar pressure differential, delivering efficient system operation for all fluid control applications.

Pressure & Temperature Resistance

The product provides stable pressure resistance within a temperature range of 0 to 60°C, with a maximum pressure tolerance of 6 bar. It is designed for a safe service life of 25 years, ensuring long-term reliability.

PP-H / PVC-C Pressure & Temperature Curve

PP-H and PVC-C fittings can withstand pressures up to 6 bar and maintain excellent pressure resistance at temperatures up to approximately 80°C, making them suitable for high-temperature or demanding fluid applications.

PVDF High-Temperature Pressure Resistance

PVDF fittings offer outstanding high-temperature performance, remaining pressure-resistant in environments up to 140°C. Ideal for fluid systems requiring high temperature and chemical resistance.

Control Pressure Range

The control system supports a maximum air input pressure of 6 bar. Different actuator types (NC, NO, DA) correspond to specific pressure ranges, ensuring stable, safe, and precise operation.

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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