In modern processing industries, achieving hygienic operation, chemical resistance, and precise flow control is essential. The Stainless Steel Sanitary Diaphragm Valve is engineered to meet these requirements, providing a flexible, leak-proof, and sanitary solution for chemical, pharmaceutical, food & beverage, and biotech applications.
Sanitary diaphragm valves are widely used in industries that demand:
Contamination-free fluid handling
Chemical compatibility with aggressive media
Efficient cleaning and sterilization (CIP/SIP)
Precise manual or automated flow control
With a stainless steel body, hygienic diaphragm, and smooth interior surfaces, these valves minimize microbial growth, reduce cross-contamination, and ensure regulatory compliance in critical processing systems.
A sanitary diaphragm valve is a type of valve that uses a flexible diaphragm to control flow. The stainless steel body provides strength, corrosion resistance, and compatibility with sanitary systems, while the diaphragm isolates the fluid from the valve actuator, ensuring contamination-free operation.
Valve Body: 316L stainless steel, polished or electropolished for hygiene
Diaphragm: PTFE, EPDM, FKM, or TFM for chemical resistance and sanitary compliance
Seat/Seal: Integrated with the diaphragm for leak-proof operation
Actuator / Handle: Manual, pneumatic, or electric actuator options
End Connections: Tri-clamp, weld, or threaded connections for Sanitary Pipelines
The diaphragm isolates process fluids from mechanical components, making the valve ideal for sterile and aggressive chemical applications.
316L stainless steel body ensures corrosion resistance, durability, and long-term reliability
Electropolished or mirror-polished interior prevents microbial growth
Compliant with FDA, 3-A Sanitary, EHEDG, and ASME BPE standards
PTFE, EPDM, or FKM diaphragm isolates the fluid from moving parts
Leak-proof and chemical-resistant for aggressive chemicals, acids, alkalis, and solvents
Quick diaphragm replacement for maintenance without removing the valve from the line
Smooth, crevice-free interior surfaces facilitate Clean-in-Place and Sterilize-in-Place
Ideal for pharmaceutical, food & beverage, and biotech lines
Precise flow regulation with manual or automated actuation
Suitable for throttling, on/off, or process isolation
Tri-clamp, weld, or threaded connections allow tool-free assembly and integration with standard sanitary pipelines
Pneumatic or electric actuators enable remote and automated flow control
Position feedback allows integration with PLC, SCADA, or DCS systems
Resistant to corrosion, high temperature, and pressure fluctuations
Precision-engineered diaphragm and seat provide long-term leak-proof operation
Smoothly control liquids, gases, or chemical solutions in pipelines, tanks, and reactors
Provide leak-proof isolation for maintenance or process separation
Prevent contamination in multi-product systems
Operate effectively in high-temperature or high-pressure applications
Maintain stability and integrity under process conditions
CIP/SIP-compatible design allows in-place cleaning without disassembly
Pneumatic and electric actuators enable remote and precise flow control
Feedback sensors support automation and monitoring
Leak-proof diaphragm isolates fluid from mechanical components
Ensures contamination-free operation in critical sanitary systems
Prevents bacterial growth and contamination
Smooth interior surfaces allow full drainage and cleaning
PTFE, FKM, and stainless steel construction resist aggressive chemicals, acids, alkalis, and solvents
Supports in-place cleaning and sterilization for pharmaceutical, food & beverage, and biotech lines
Manual or automated operation allows throttling, on/off control, and isolation
Pneumatic and electric actuators enable integration with PLC, SCADA, or DCS systems
Quick diaphragm replacement without removing the valve from the process line
Modular design simplifies seal replacement and actuator servicing
Suitable for chemical, pharmaceutical, food & beverage, biotech, and cosmetic industries
| Industry | Applications |
|---|---|
| Chemical | Acid/alkali transfer, solvent dosing, corrosive liquid handling |
| Pharmaceutical | Sterile liquid transfer, WFI lines, fermentation tanks, batch production |
| Food & Beverage | Dairy, juice, beer, wine, syrup, and beverage processing lines |
| Cosmetic & Biotech | Creams, lotions, gels, sterile media handling |
| Laboratories / Pilot Plants | Chemical reaction control, sterile fluid transfer, research applications |
| Parameter | Description |
|---|---|
| Valve Type | Stainless Steel Sanitary Diaphragm Valve |
| Body Material | 316L Stainless Steel |
| Diaphragm Material | PTFE / EPDM / FKM / TFM (FDA Approved) |
| Connection Type | Tri-clamp, Weld, Thread |
| Actuation Options | Manual / Pneumatic / Electric |
| Surface Finish | Ra ≤ 0.8 μm Electropolished |
| Operating Pressure | Vacuum to 10 bar |
| Temperature Range | -20°C to +150°C |
| Sizes Available | ½" to 6" (DN15–DN150) |
| Standards Compliance | FDA, 3-A Sanitary, EHEDG, ASME BPE |
The sanitary diaphragm valve operates by compressing a flexible diaphragm against a seat to control flow:
Open Position: Diaphragm lifts, allowing fluid to pass through smoothly
Closed Position: Diaphragm seals tightly against the valve body to block flow
Optional pneumatic or electric actuators allow remote control, automation, and integration with monitoring systems. The diaphragm isolates the fluid from mechanical components, ensuring contamination-free operation.
Align valve body and actuator properly with pipeline
Ensure gaskets and seals are correctly positioned to prevent leaks
Connect pneumatic/electric actuators according to manufacturer specifications
Test valve function before introducing process fluids
Inspect diaphragm and seals regularly for wear or chemical degradation
Replace diaphragm without removing the valve from the pipeline
Perform routine CIP/SIP cleaning cycles
Lubricate actuator components if recommended
Certified Quality: Compliant with FDA, 3-A, EHEDG, and ASME BPE standards
Hygienic Design: Smooth surfaces and diaphragm ensure contamination-free operation
Chemical Resistance: Resistant to acids, alkalis, solvents, and aggressive media
CIP/SIP Compatible: Ideal for in-place cleaning and sterilization
Automation Ready: Pneumatic/electric actuation options for precise control
Durable Construction: 316L stainless steel body ensures long service life
Multi-Industry Use: Suitable for chemical, pharmaceutical, food & beverage, biotech, and cosmetic industries
A valve with a flexible diaphragm that isolates process fluids from mechanical components, made with 316L stainless steel for hygienic and chemical-resistant operation.
Chemical, pharmaceutical, food & beverage, cosmetic, biotech, and laboratory applications.
Yes. PTFE, FKM, and stainless steel components ensure resistance to acids, alkalis, solvents, and other aggressive media.
Absolutely. Electropolished surfaces and diaphragm design support in-place cleaning and sterilization.
Standard sizes range from ½" to 6" (DN15–DN150), with custom sizes available.
Yes, pneumatic and electric actuators are available for automated control.
The diaphragm isolates fluid from mechanical parts, ensuring leak-free and contamination-free operation.
FDA, 3-A Sanitary, EHEDG, ASME BPE, and ISO certifications.
The stainless steel sanitary diaphragm valve is an essential solution for industries requiring hygienic, chemically resistant, and precise flow control.
With 316L stainless steel construction, FDA-approved diaphragms, CIP/SIP compatibility, and automation options, these valves ensure safe, reliable, and efficient operation in chemical, pharmaceutical, food & beverage, biotech, and cosmetic processes.
Selecting a certified supplier guarantees long-term durability, regulatory compliance, and optimal process performance.
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