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Sanitary SS316L Manually & Pneumatically Actuated Diaphragm Valves

Premium hygienic valve solutions for food, beverage, pharmaceutical, and chemical processing industries. Engineered for reliability, durability, and compliance with international sanitary standards.

Pneumatic Diaphragm Valve

About CNYC Valve

CNYC Valve is a trusted manufacturer and supplier of high-quality sanitary valves designed for critical applications in hygienic environments. With a focus on innovation, precision engineering, and strict quality control, we deliver reliable valve solutions that meet the demands of modern processing industries.

Quality Assurance

All products undergo rigorous testing and inspection to ensure compliance with international standards including 3A, FDA, and ISO.

Fast Delivery

We maintain efficient production and logistics systems to ensure timely delivery of orders worldwide.

Customer Support

Our technical team provides expert guidance on product selection, installation, and maintenance.

Our Products

Explore our comprehensive range of sanitary valves built for performance, longevity, and hygiene.

Hygienic Manual Diaphragm Valve (Clamp)

Hygienic Manual Diaphragm Valve (Clamp)

Ideal for applications requiring frequent disassembly and cleaning. Clamp ends ensure quick installation and leak-free connections.

  • Body Material: SS316L
  • Diaphragm Options: EPDM, PTFE
  • Connection: Clamp
Hygienic Manual Diaphragm Valve (Welding)

Hygienic Manual Diaphragm Valve (Welding)

Designed for permanent installation with welded ends. Offers maximum structural integrity and minimal dead zones.

  • Body Material: SS316L
  • Sealing: EPDM or PTFE diaphragm
  • Ends: Welding
Pneumatic Diaphragm Valve

Pneumatic Diaphragm Valve

Automated control valve with pneumatic actuator for precise flow regulation in process systems.

  • Actuation: Pneumatic (Double Acting / Spring Return)
  • Control Signal: 3-15 psi or 4-20 mA
  • Material: SS316L with PTFE lining
3-Piece Ball Valve

3-Piece Ball Valve

Sanitary ball valve with modular design for easy maintenance and cleaning. Suitable for high-cycle applications.

  • Body: SS316L
  • Ball: Polished SS316L
  • Seals: PTFE, EPDM
Safety Valve

Sanitary Safety Valve

Protects systems from overpressure with fast response and reliable reseating. Complies with ASME and PED standards.

  • Material: SS316L
  • Set Pressure: Adjustable
  • Connection: Clamp, Weld, Threaded
Check Valve

Sanitary Check Valve

Prevents backflow in pipelines with silent operation and tight shut-off. Ideal for hygienic processes.

  • Type: Swing or Lift
  • Body: SS316L
  • Seal: EPDM, Silicone, PTFE
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Pneumatic Angle Seat Valve

High-flow capacity valve with linear motion actuator. Excellent for steam, water, and aggressive media.

  • Actuation: Pneumatic
  • Flow Coefficient: High Cv
  • Material: SS316L body, PTFE seal
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EPDM Diaphragm/Gasket

Replacement diaphragms made from high-quality EPDM rubber. Resistant to heat, water, and steam.

  • Material: EPDM
  • Temperature Range: -40°C to +135°C
  • Compatibility: Water, steam, mild chemicals
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PTFE Diaphragm/Gasket

Chemically inert PTFE diaphragms for aggressive media including acids, solvents, and alkalis.

  • Material: PTFE (Teflon)
  • Temperature Range: -70°C to +200°C
  • Features: Non-stick, low friction, excellent chemical resistance
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Process Control Diaphragm Valve

Precision-engineered for automated process control with analog or digital integration.

  • Control Type: Modulating or On/Off
  • Signal Input: 4-20mA, 0-10V
  • Body: SS316L with polished finish
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Aseptic Sampling Valve

Designed for sterile sampling in biopharmaceutical and food applications. Prevents contamination.

  • Material: SS316L
  • Design: Flush bottom, no dead legs
  • Connection: Clamp or Weld
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Butterfly Valve

Compact and lightweight valve for on/off or throttling service in large-diameter lines.

  • Disc Material: SS316L
  • Seal: EPDM, NBR, PTFE
  • Actuation: Manual, Pneumatic, Electric

Why Choose CNYC Valves?

  • High-Quality Materials

    All valves constructed from premium SS316L stainless steel with electropolished surfaces for superior corrosion resistance and hygiene.

  • Global Compliance

    Products meet 3A, FDA, EHEDG, and ISO standards — ideal for food, pharmaceutical, and biotech applications.

  • Customization Available

    We offer OEM services, custom sizes, special materials, and tailored actuation options to meet your exact requirements.

  • Technical Expertise

    Our engineers provide support from design to installation, ensuring optimal performance and system integration.

CNYC Valve Features
10K+
Valves Sold
50+
Countries Served
15+
Years Experience
99.8%
Customer Satisfaction

Frequently Asked Questions

What types of CNYC diaphragms are available?

CNYC offers EPDM and PTFE diaphragms. EPDM is ideal for steam and water applications, while PTFE provides superior chemical resistance for aggressive media.

How do I replace the diaphragm on a manual CNYC valve?

To replace the diaphragm, first depressurize the system. Remove the bonnet bolts, lift off the actuator, extract the old diaphragm, insert the new one, and reassemble. Refer to the instruction manual for torque specifications.

Can I use CNYC valves in sterile environments?

Yes, our valves are designed for aseptic applications and meet 3A and EHEDG standards. They are commonly used in pharmaceutical, biotech, and food processing industries requiring sterile conditions.

Do you offer pneumatic actuators with feedback signals?

Yes, we offer pneumatic actuators with position feedback (4-20mA) and limit switches for integration into automated control systems.

What is the warranty on CNYC valves?

CNYC valves come with a standard 12-month warranty against manufacturing defects. Extended warranties are available upon request.

Get in Touch

Have questions about our products or need a quote? Contact us directly through our official website.

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