Nomen Pharma supplies pharmaceutical diaphragm valves for aseptic fluid control in bioreactors, Water for Injection (WFI) loops, purified water systems, fermentation lines, buffer preparation systems and sterile process pipelines.

Available configurations include 304 and 316L stainless steel bodies, PTFE and EPDM diaphragm materials, manual or pneumatic actuation, two-way and three-way designs, tank bottom valves and sanitary connections. Zero-dead-leg and fully drainable body options help reduce product retention and support hygienic process control.

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Pharmaceutical Diaphragm Valve at a Glance

Note:Welding connection is not documented in Catalog XI.

Diaphragm    Valve-pneumatic-flange-roof    type-PTFE+EPDM    compound    diaphragm-PN6    bar-CF3M-manufacturing    standard    GB/T14976-engineering    plastic(NC)actuator-actuatoor   diameter70-PN16    Flange    HG/T20592-PL-size    DN25

Aseptic Design for Critical Process Control

In biopharmaceutical manufacturing, fluid control equipment must eliminate contamination risks and support validated sterilization procedures. Our pharmaceutical diaphragm valves are engineered to meet these demanding requirements.

Key design features include:

• Zero dead-leg flow path for complete drainability

• Diaphragm isolation structure to separate media from mechanical parts

• Mirror-polished internal surfaces

• Fully drainable body design

• Compatibility with CIP and SIP processes

• FDA-compliant diaphragm materials

These features support consistent aseptic performance throughout the entire production lifecycle.

Applications in Bioreactor and WFI Systems

Our pharmaceutical diaphragm valves are widely applied in sterile processing and utility systems.

Bioreactor and Cell Culture Systems

• Media and nutrient feeding

• Sterile sampling points

• Inoculation pipelines

• Product discharge lines

Fermentation and Upstream Processing

• Gas and liquid dosing lines

• Buffer preparation systems

• Transfer pipelines

• Process isolation points

Water for Injection (WFI) and Purified Water Systems

• Distribution loops

• Storage tank connections

• Recirculation pipelines

• Point-of-use outlets

CIP/SIP and Sterilization Systems

• Cleaning solution control

• Steam sterilization lines

• Return condensate circuits

• Automated cleaning skids

This versatility enables seamless integration into laboratory, pilot, and industrial-scale facilities.

Work Principle:

The diaphragm is close under normal state, and that moment the diaphragm clung to the valve body cavity, and closing off the flow path through the pipeline. When the diaphragm valve have the requirement to clean or open, the valve stem moves upwards according to the manual or pneumatic actuator equipment, spherical diaphragms naturally bend upwards,so that the valve is open and reach the requirement of clean and open. The diaphragm make the lower body cavity and the upper chamber separated from the valve cover, so that the stem at the top of the diaphragm, disc media and other parts from corrosion, eliminating the need for packing structure, and no media leaks. The optimize valve body made the cleaning liquid flow out totally, so that don't have any entrapment.

Material:

Steel parts: 304 stainless steel, 316L stainless steel

Seals: EPDM+PTFE (ethylene propylene + polytetrafluoroethylene) which are made of imported sealing materials (all in accordance with FDA177.2600 standard). Using the special technology of NUOMENG, a connecting bolt is combined with EPDM/PTFE to form a whole sealing part. The sealing part and the contact part of the PTFE material have good cold resistance（-25℃）, with long working temperature reaching +130℃ and sterilization temperature 150℃ ≤30min, which

has good tolerance to various chemical agents and excellent wear resistance to fluids.

Standard Design:

Standards : DIN,3A,SMS,ISO/IDF,BS/RJT,ASME/BPE etc.

The parts of valves: an actuator, diaphragm and body which assemble together with bolts and nuts.The entire valve assembly in meticulously. The actuator can be manual and pneumatic, the diaphragm made of artificial rubber which can have all kinds of soft and hard degree.The body can be two way or three way.

Connection : clamp, weld, T-type tee,U type tee etc.

Reliable Performance in Sterile Environments

Our pharmaceutical diaphragm valves are designed to maintain consistent performance under frequent sterilization and cleaning cycles.

Key performance advantages include:

• Excellent sealing integrity over long operating periods

• Resistance to steam and aggressive cleaning chemicals

• Stable actuation under pressure fluctuations

• Reduced maintenance frequency

• Long diaphragm service life

These benefits contribute to higher system availability and lower operational costs.

Compliance with Pharmaceutical Industry Standards

All diaphragm valves are produced under strict quality management systems and comply with major pharmaceutical regulations.

Applicable standards include:

• GMP Guidelines

• FDA Material Certification

• ISO Quality Management System

• ASME BPE (Optional Design)

• Hygienic Equipment Design Principles

Each valve undergoes comprehensive testing before delivery to ensure dependable quality.

Customization and System Integration Capability

Different biopharmaceutical projects require tailored valve solutions. We provide flexible customization services to support system integration.

Available options include:

• Customized port sizes and standards

• High-polish internal surface finishing

• Special diaphragm compounds

• Automation-ready actuators

• Integrated position feedback

• OEM branding and packaging

Our engineering team works closely with clients to ensure smooth installation and operation.

Manufacturing and Quality Assurance

Our diaphragm valves are produced through standardized manufacturing and inspection processes.

Quality control steps include:

1. Precision CNC machining

2. Surface polishing and passivation

3. Material traceability verification

4. Clean-room assembly

5. Pressure testing

6. Leakage inspection

7. Functional operation testing

8. Final documentation review

This systematic approach ensures consistent product performance.

Why Our Pharmaceutical Diaphragm Valves Are Trusted

With extensive experience in pharmaceutical process equipment manufacturing, we deliver valve solutions focused on reliability, compliance, and lifecycle value.

Our advantages include:

• Stable manufacturing capacity

• Experience in biopharmaceutical system projects

• Strict quality management procedures

• Professional technical support

• Competitive cost structure

• Reliable delivery schedules

We support customers throughout the entire project lifecycle.

Industries and Facilities Served

Our pharmaceutical diaphragm valves are widely used in:

• Biopharmaceutical production plants

• Vaccine manufacturing facilities

• Injectable drug factories

• Cell therapy processing centers

• Nutraceutical production sites

• Medical device manufacturing plants

• Research and development laboratories
  
  

How Does a Pharmaceutical Diaphragm Valve Work?

When the valve is closed, the diaphragm presses against the valve body seat and blocks the flow path. When the valve is opened, the manual or pneumatic actuator lifts the stem and moves the diaphragm away from the seat.

The diaphragm separates the process medium from the stem and actuator. This structure reduces the need for traditional packing around the stem and helps prevent process fluid from entering the upper operating chamber.

The selected valve body can be designed to support complete drainage and reduce the possibility of fluid entrapment.

Your Reliable Partner for Aseptic Process Control

Selecting high-quality pharmaceutical diaphragm valves is essential for ensuring sterile production and regulatory compliance. We provide professional consultation, detailed technical documentation, and customized solutions for bioreactor and WFI systems.

Contact Nomen Pharma technical team today to receive specifications, drawings, and competitive quotations for your biopharmaceutical applications.

Why Source Pharmaceutical Diaphragm Valves from Nomen Pharma?

Nomen Pharma focuses on pharmaceutical process equipment and bioprocess system components. Our diaphragm valve solutions are supported by:

• Experience in pharmaceutical process equipment

• Stable manufacturing and inspection procedures

• Options for bioreactor and WFI applications

• Manual and automated valve configurations

• Support for sanitary connection standards

• Technical documentation for project evaluation

• OEM and ODM service capability

• Support for system integration and equipment matching

We work with pharmaceutical manufacturers, biopharmaceutical companies, laboratory equipment suppliers, system integrators and engineering contractors.

How to Select the Right Diaphragm Valve

Please prepare the following information when requesting a quotation:

• Process medium

• Required valve function

• Pipeline size

• Working pressure

• Working temperature

• Cleaning and sterilization method

• Connection standard

• Manual or automated operation

• Required diaphragm material

• Required documentation

• Installation environment

• Quantity and project schedule

Providing these details helps our engineers recommend a more accurate valve configuration and prepare the correct technical documentation.

Frequently Asked Questions

What is a pharmaceutical diaphragm valve used for?

A pharmaceutical diaphragm valve is used for hygienic fluid isolation and selected flow control in bioreactors, WFI systems, purified water systems, fermentation lines, buffer preparation systems and sterile process pipelines.

Are manual and pneumatic diaphragm valves available?

Yes. Manual, pneumatic, pneumatic-feedback, electric and electro-pneumatic configurations are available depending on the selected valve type and process requirements.

What materials are available for pharmaceutical diaphragm valves?

Available options include 304 stainless steel, 316L stainless steel, PTFE+EPDM, EPDM, FKM, FFKM, composite PTFE and silicone materials. Final material selection depends on the process medium and operating conditions.

Can the valves be used in CIP and SIP systems?

Selected pharmaceutical diaphragm valve configurations are compatible with CIP and SIP processes. The final suitability depends on the valve design, diaphragm material, cleaning chemicals, temperature, pressure and sterilization cycle.

Do you supply zero-dead-leg diaphragm valves?

Yes. Zero-dead-leg and fully drainable configurations are available for selected pharmaceutical, biopharmaceutical and purified water applications.

Can you provide custom connections and actuators?

Yes. Connection standards, port sizes, body configurations, diaphragm materials, actuators and feedback options can be customized according to the project requirements.

What information is required for a quotation?

Please provide the medium, size, pressure, temperature, connection standard, actuation method, valve function, diaphragm material and required documents. Drawings or pipeline specifications are also helpful.

Request a Pharmaceutical Diaphragm Valve Quote

Looking for a sanitary diaphragm valve for a bioreactor, WFI loop, CIP/SIP skid or sterile process pipeline?

Send us your process requirements, valve size, connection standard and operating conditions. Nomen Pharma will review the application and provide suitable configuration options, technical specifications and quotation support.

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