
( Brand: Definox ), ( Manufacturer Part Number: DPX3DN ), ( Part Type: Valve Manual ), ( Valve Operation: Manual ), ( Disc Material: Stainless Steel ), ( Butterfly Valve Type: Wafer ), ( Diameter: 3 In ), ( Country Of Origin: France )
The **Definox DPX3DN DPX3 DN76 Manual Sanitary Butterfly Valve with EPDM Sealing** is a high-performance, precision-engineered valve designed to meet the stringent demands of sanitary and hygienic industries, including pharmaceutical, food and beverage, biotechnology, and cosmetic manufacturing. Constructed from **316L stainless steel**, this valve combines durability with exceptional corrosion resistance, ensuring long-term reliability even in aggressive chemical environments. The **DN76 (3") nominal size** provides ample flow capacity while maintaining a compact footprint, making it ideal for installations where space efficiency is critical. Its **manual operation** via a robust, easy-to-grip lever allows for intuitive control, enabling quick on/off functionality without the need for external power sources, which is particularly advantageous in applications requiring frequent adjustments or emergency shutdowns.
The valve features a **dual-plate butterfly design**, which minimizes turbulence and reduces pressure drop compared to traditional single-disc valves, enhancing overall system efficiency. The **EPDM (Ethylene Propylene Diene Monomer) sealing material** is a standout specification, offering superior resistance to a wide range of chemicals, including acids, alkalis, and organic solvents, while also providing excellent temperature stability typically operating effectively between **-20 C to 120 C** (with variations depending on specific media). EPDM s non-toxic, food-grade properties make it an ideal choice for applications where product purity and compliance with sanitary standards (such as **3-A Sanitary Standards or EHEDG guidelines**) are non-negotiable. The valve s **smooth, polished surfaces** and **welded construction** eliminate crevices where contaminants could accumulate, further supporting hygienic processing requirements.
For enhanced functionality, the **DPX3 series** incorporates a **sanitary flange connection** (typically **CL150 or CL250**), ensuring a secure, leak-proof seal that adheres to industry hygiene protocols. The valve s **low torque operation** reduces wear on the actuator and stem, extending the lifespan of the component, while its **self-lubricating EPDM gaskets** minimize friction during repeated use. The **DPX3DN variant** may include additional features such as **double-offset disc positioning**, which further reduces sealing surface wear and improves flow characteristics. This valve is also compatible with **CIP (Clean-In-Place) and SIP (Sterilize-In-Place) systems**, allowing for thorough cleaning and sterilization without disassembly, which is essential for maintaining product integrity in sterile environments.
Whether integrated into a **piping system for liquid transfer, process control, or emergency isolation**, the Definox DPX3DN DPX3 DN76 Manual Sanitary Butterfly Valve delivers a perfect balance of **performance, reliability, and hygiene**. Its modular design allows for easy integration into existing setups, while its robust construction ensures minimal maintenance and maximum uptime. For industries where precision, cleanliness, and efficiency are paramount, this valve represents a superior choice for critical fluid handling applications.
### Pros and Cons of Buying a Definox DPX3DN, DPX3 DN76, or Manual Sanitary Butterfly Valve with EPDM Seating
#### **Pros:**1. **Material Compatibility** The EPDM (Ethylene Propylene Diene Monomer) seating ensures excellent resistance to a wide range of chemicals, including acids, alkalis, and organic solvents. This makes the valve suitable for pharmaceutical, food and beverage, and biotech applications where chemical compatibility is critical.
2. **Corrosion Resistance** The valve body is likely made of stainless steel (common in sanitary applications), which prevents rusting and extends the valve s lifespan in corrosive environments.
3. **Sanitary Design** The valve is designed for sanitary applications, meaning it has smooth, weldable surfaces that prevent bacterial buildup and meet industry standards like 3-A or EHEDG. This is essential for industries where hygiene is paramount.
4. **Low Maintenance** Butterfly valves are generally low-maintenance compared to other types of valves. The EPDM seat reduces wear, and the manual operation simplifies servicing.
5. **Cost-Effective** Compared to more complex control valves, manual butterfly valves are relatively inexpensive to purchase and maintain, making them a practical choice for applications where precise flow control is not required.
6. **Easy Installation** The DN76 (76mm) size is standard and widely available, simplifying procurement and installation. The sanitary design also ensures compatibility with existing piping systems in food, pharmaceutical, and beverage industries.
7. **Versatile Flow Control** While not as precise as control valves, manual butterfly valves provide effective on/off or throttling control, making them suitable for applications where gradual flow adjustment is needed.
8. **Durability** Stainless steel construction and EPDM seating contribute to long-term durability, reducing the need for frequent replacements.
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#### **Cons:**1. **Limited Flow Control Precision** Manual butterfly valves are not ideal for applications requiring precise flow regulation. They are better suited for on/off or rough throttling rather than fine adjustments.
2. **Potential for Leakage** Over time, the EPDM seat may degrade due to exposure to certain chemicals, extreme temperatures, or UV light, leading to leaks. Regular inspection and maintenance are necessary to mitigate this risk.
3. **Torque Requirements** Large-sized butterfly valves (even DN76) can require significant torque to operate, which may necessitate the use of a manual actuator or gearbox, adding complexity and cost.
4. **Pressure Limitations** While sanitary butterfly valves are robust, they may not be suitable for high-pressure applications. The DPX3 series is typically designed for moderate pressure ranges (e.g., up to 16 bar or 232 psi), so high-pressure systems may require alternative valve types.
5. **Wear and Tear on the Seat** Frequent or aggressive operation can accelerate wear on the EPDM seat, reducing the valve s lifespan. This is particularly relevant in applications with abrasive or particulate-laden fluids.
6. **Limited Temperature Range** EPDM has a temperature range of approximately -20 C to 120 C (-4 F to 248 F). If the application involves extreme temperatures outside this range, alternative sealing materials (e.g., Viton or PTFE) may be required.
7. **Potential for Contamination** While sanitary valves are designed to minimize contamination, improper cleaning or maintenance can introduce bacteria or debris into the system, especially in food or pharmaceutical applications.
8. **Actuator Dependency** For larger valves or applications requiring remote operation, a manual actuator may be needed, increasing the overall cost and complexity of the system.
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### **Conclusion:**The Definox DPX3DN, DPX3 DN76, or manual sanitary butterfly valve with EPDM seating is a practical choice for applications requiring reliable on/off control or rough throttling in sanitary environments. Its chemical resistance, durability, and ease of maintenance make it well-suited for industries like food and beverage, pharmaceuticals, and biotech. However, its limitations in precision flow control, potential for leakage, and torque requirements must be carefully considered before purchase.
For applications demanding high precision, extreme pressure or temperature resistance, or continuous throttling, alternative valve types (e.g., control valves, ball valves, or diaphragm valves) may be more appropriate.
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### **Recommendation:** Purchase this valve if:- You need a cost-effective, low-maintenance solution for on/off or rough throttling in sanitary applications.
- The fluid being handled is compatible with EPDM (check chemical resistance charts).
- The operating conditions (pressure, temperature, and flow rate) fall within the valve s specified range.
- Hygiene and cleanability are critical, and the valve meets sanitary standards (e.g., 3-A or EHEDG).
Avoid this valve if:- You require precise flow control or frequent throttling adjustments.
- The application involves extreme temperatures (outside EPDM s range) or highly abrasive fluids.
- The system operates at high pressures beyond the valve s rated capacity.
- You need a valve that can handle frequent or aggressive cycling without maintenance.
For optimal performance, pair this valve with proper installation, regular maintenance, and compatibility checks with the specific fluids and operating conditions in your system.
Minimal signs of use. Keyword List:3 DPX3 Butterfly Valve, Definox DN76 Manual Sanitary Stainless Steel EPDM Seal Teri-Clamp Process Food Beverage Valve. Ideal for sanitary process applications, including food, beverage, dairy, and pharmaceutical systems. Please see pictures for exact condition.
Included:1 3 Definox DPX3 DN76 Manual Stainless Steel Sanitary Butterfly Valve with EPDM Seal. Applications:Food Beverage Processing Dairy Systems Pharmaceutical Biotech Processes Other Sanitary / Hygienic Piping Systems. Product Features:Brand: Definox model: DPX3 DN76Size: 3 DN76 Valve Type: Manual Butterfly Valve Material: Stainless Steel Seal Material: EPDM condition: Preowned Sanitary Clamp End / Teri-Clamp Compatible Manual Lever Operation. Manual operation allows precise flow control in hygienic piping systems.