Description
1. Introduction to Diaphragm Seal with Sterile Connection MT-S120SN
The Diaphragm seal with sterile connection MT-S120SN is a precision-engineered measurement accessory designed for applications that require absolute cleanliness, hygienic processing, and contamination-free pressure transmission. It is widely used in food & beverage, pharmaceutical, biotechnology, and cosmetic production environments, where sterile conditions are essential to ensure product integrity and process reliability. By isolating the pressure instrument from the process medium, this diaphragm seal prevents direct contact between sensitive gauges or transmitters and the fluid being processed, while maintaining accurate pressure measurement.
The model MT-S120SN is specifically designed to meet hygienic industry standards through its use of clamp-type sterile connections, laser-welded diaphragm construction, and food-grade sealing fluid, providing reliable and repeatable performance in sanitary applications.
2. Key Features of Diaphragm Seal with Sterile Connection MT-S120SN
High-Hygiene Connection Design
One of the distinguishing characteristics of the Diaphragm seal with sterile connection MT-S120SN is its Tri-Clamp (Tri-Clover) sanitary connection. This type of clamp allows for quick connection and disconnection, significantly reducing downtime during cleaning, routine maintenance, or process changeovers.
Laser-Welded Diaphragm for Clean Contact Surface
The diaphragm is laser-flush welded, ensuring a smooth surface without crevices or gaps where contaminants, bacteria, or residues might accumulate. This design is essential for applications that require CIP (Clean-in-Place) or SIP (Sterilization-in-Place) procedures.
Quick Disconnect / Connect Mechanism
The system is equipped with a quick-release mechanism, enabling operators to remove the diaphragm seal effortlessly without using specialized tools. This feature is particularly beneficial during frequent sanitation cycles.
Food-Grade System Compatibility
The sealing fluid used within the diaphragm seal is food-grade certified, compatible with temperature ranges of -20°C to +140°C, providing stability during both cold processing and high-temperature sterilization cycles.
Material Durability and Corrosion Resistance
The pressure chamber is constructed from AISI SS 316, while the diaphragm itself is manufactured from AISI SS 316L. Both materials are widely recognized for their corrosion resistance, chemical compatibility, and long service life, especially in acidic or saline process environments.
Wide Range of Industry Applications
This diaphragm seal model is ideal for:
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Food & Beverage processing (dairy, brewing, juice concentration, edible oils)
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Pharmaceutical and biopharmaceutical processing
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Cosmetic and personal care product manufacturing
These industries require sterile sealing to prevent contamination, maintain product consistency, and comply with global quality standards.
3. Operational Advantages in Sterile Processing Lines
The Diaphragm seal with sterile connection MT-S120SN provides several operational advantages beyond hygienic handling:
Accurate Pressure Transmission
Although the process fluid does not contact the measuring instrument directly, the diaphragm and sealing fluid system transmit pressure accurately and consistently, ensuring reliable readings for control systems or manual monitoring.
Reduced Risk of Mechanical Wear
Since the instrument does not come into contact with process media such as slurry, sugar syrup, viscous creams, or reactive chemicals, the risk of instrument wear and clogging is significantly reduced, resulting in lower maintenance frequency and longer equipment lifespan.
Minimized Contamination Risk
The hygienic flush diaphragm surface ensures no trapped residues remain after cleaning cycles. This helps maintain high purity, product taste integrity, and clinical-grade sanitation, especially critical in pharmaceutical and injectable formulation environments.
4. Technical Specifications (Standard Parameters)
| Parameter | Specification |
|---|---|
| Pressure Range Type | -1…0 bar to 0…40 bar |
| Chamber Material | AISI SS 316 |
| Diaphragm Material | AISI SS 316L |
| Instrument Connection | ½” NPT (F) or ½” BSP (F) |
| Process Connection | Tri-Clamp sizes 1″, 1.5″, 2″, 2.5″, 3″ |
| Sealing Fluid | Food-grade oil, temp range: -20°C to +140°C |
| Assembly Type | Direct assembly |
| Application | Food, beverage, cosmetics, pharmaceutical |
These standard parameters ensure compatibility with a wide range of pressure gauges, transmitters, and sanitary pipe systems.
5. Applications in Food and Pharmaceutical Production
Food & Beverage Processing
In dairy pasteurization, brewing fermentation tanks, beverage carbonation systems, and syrup concentration units, maintaining a sterile environment is vital. The Diaphragm seal with sterile connection MT-S120SN ensures measurement accuracy without introducing contamination risks.
Pharmaceutical Industry
It supports sterile filtration systems, bioreactors, infusion solution production, and active ingredient blending, where microbiological control and traceability are key compliance requirements.
Cosmetic Sector
Used in cream, gel, lotion, and fragrance production systems, the sterile connection prevents cross-batch contamination and maintains purity of finished products.
6. Conclusion
The Diaphragm seal with sterile connection MT-S120SN offers a combination of hygienic design, material durability, quick maintenance, and accurate pressure measurement, making it the preferred solution for sterile production environments. Its reliable performance ensures product safety, reduces downtime, simplifies sanitation processes, and supports compliance with international sanitary standards.





