
( Brand: Burkert ), ( Manufacturer Part Number: 2032-A-20 ), ( Part Type: Valve )
The **Burkert 2032-A-20 2032-20 EPDM 5A93 Diaphragm Valve** is a precision-engineered, high-performance control valve designed for demanding applications in fluid handling, chemical processing, and industrial automation. Part of Burkert s renowned **2032 series**, this valve combines robust construction with advanced diaphragm technology to deliver reliable, leak-tight regulation of corrosive, abrasive, or aggressive media. The **2032-A-20** features a **20 mm ( inch) nominal size**, making it ideal for medium-flow applications where precise control is essential, such as in water treatment, pharmaceutical manufacturing, food and beverage processing, or laboratory environments. Its **EPDM (Ethylene Propylene Diene Monomer) diaphragm** provides exceptional resistance to a wide range of chemicals, including acids, alkalis, and organic solvents, while maintaining flexibility and durability over extended service life. The **5A93** designation indicates a **normally closed (NC) valve** with a **pneumatic or electric actuator**, ensuring tight sealing when de-energized, which is critical for safety and containment in hazardous or high-pressure scenarios. The valve s **ceramic or metal-seated design** enhances wear resistance and minimizes leakage, even under fluctuating pressure conditions, while its **modular construction** allows for easy installation and maintenance. With a **wide rangeability (up to 50:1)** and **fast response times**, the 2032-A-20 excels in applications requiring dynamic control, such as dosing, mixing, or pressure regulation. Additionally, its **IP65-rated housing** ensures protection against dust and water ingress, making it suitable for both indoor and outdoor industrial settings. Whether integrated into a **pneumatic control system** or automated via **Burkert s Vantage or FlowControl software**, this valve delivers consistent, repeatable performance with minimal maintenance, reinforcing its reputation as a dependable workhorse in fluid automation.
### **Pros and Cons of buying a Burkert 2032-A-20 (2032-20 EPDM 5A93 Diaphragm Valve)**
#### **Pros**
1. **High Reliability and Durability** Burkert is a well-established manufacturer known for precision-engineered control valves, particularly in fluid handling applications. The 2032 series is designed for long-term performance, making it suitable for demanding industrial environments.
2. **Versatile Material Options** The valve is available in EPDM (ethylene propylene diene monomer) rubber, which is resistant to a wide range of chemicals, including acids, bases, and solvents. This makes it suitable for applications involving aggressive fluids.
3. **Compact and Space-Efficient Design** The 2032 series is designed for compact installation, which is beneficial in applications with limited space, such as laboratory setups, pilot plants, or automated systems.
4. **Precise Flow Control** Diaphragm valves like this one offer excellent throttling capability, allowing for fine adjustments in flow rates. This is useful in processes requiring precise dosing or regulation.
5. **Easy Maintenance and Cleaning** The diaphragm design allows for easy disassembly and cleaning, reducing downtime. The valve can be fully dismantled for maintenance without removing it from the system.
6. **Compatibility with Automation** Burkert valves are often compatible with electronic control systems, making them suitable for automated processes where remote operation is required.
7. **Wide Temperature Range** The EPDM diaphragm version typically operates effectively within a broad temperature range (e.g., -20 C to 100 C, depending on specific model variations), making it adaptable to various environmental conditions.
8. **Low Leakage Rates** When properly maintained, diaphragm valves like this one provide minimal leakage, which is critical in applications where fluid purity is essential.
9. **Cost-Effective for Moderate Flow Rates** For applications requiring moderate flow control (up to 20 L/min, depending on configuration), this valve offers a balance between performance and cost.
10. **Global Availability and Support** Burkert has a strong distribution network, ensuring availability of spare parts, technical support, and documentation.
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#### **Cons**
1. **Limited High-Pressure Capability** The 2032 series is not designed for extremely high-pressure applications (typically max 10 bar, depending on the specific variant). For high-pressure systems, a different valve type (e.g., ball or check valve) may be more appropriate.
2. **Potential for Diaphragm Wear** Over time, the diaphragm can degrade due to chemical exposure, temperature fluctuations, or mechanical stress. This may require periodic replacement, adding to long-term maintenance costs.
3. **Higher Cost Compared to Basic Valves** While not excessively expensive, diaphragm valves from Burkert are more costly than simple on/off ball or globe valves. The added precision and materials justify the cost in specialized applications but may be overkill for simple applications.
4. **Flow Limitations** The valve s flow capacity is relatively low ( 20 L/min for the standard size), making it unsuitable for high-volume applications. For larger flows, a multi-port or larger valve would be necessary.
5. **Specialized Installation Requirements** Diaphragm valves require proper mounting and alignment to function correctly. Improper installation (e.g., incorrect orientation or excessive torque on fittings) can lead to leaks or premature failure.
6. **Limited Compatibility with Abrasive Fluids** While EPDM is resistant to many chemicals, it may degrade when exposed to abrasive particles or highly corrosive substances over time. For such applications, alternative materials (e.g., PTFE or metal-seated valves) may be needed.
7. **Dependence on Supplier for Replacement Parts** Burkert is a premium brand, and replacement diaphragms or seals may not be readily available from third-party suppliers, potentially increasing downtime if stock is not maintained.
8. **Learning Curve for Operation** Users unfamiliar with diaphragm valves may require training to operate them correctly, particularly in automated or sensitive applications where precise control is required.
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### **Conclusion**
The **Burkert 2032-A-20 (2032-20 EPDM 5A93) diaphragm valve** is an excellent choice for applications requiring **precise flow control, chemical resistance, and ease of maintenance** in moderate-pressure, low-to-moderate flow systems. Its reliability, compact design, and compatibility with automation make it ideal for **laboratory settings, pilot plants, pharmaceutical processes, and automated dosing systems**.
However, it is **not suitable for high-pressure, high-flow, or abrasive environments** without modification. The **higher upfront cost and potential long-term maintenance needs** (e.g., diaphragm replacement) should be considered against the benefits it provides in specialized applications.
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### **Recommendation**
**Buy the Burkert 2032-A-20 if:**- You need **precise flow regulation** in a system with **moderate flow rates ( 20 L/min)**.
- Your application involves **chemicals compatible with EPDM** (check Burkert s material compatibility charts).
- You require **easy maintenance, cleanability, and automation compatibility**.
- Your system operates within the **recommended pressure and temperature ranges** (typically 10 bar, -20 C to 100 C).
- You prioritize **long-term reliability and brand support** over cost savings.
**Avoid or Consider Alternatives if:**- Your application requires **high-pressure or high-flow rates** (consider a ball valve or multi-port valve).
- The fluid is **highly abrasive or contains aggressive particles** (evaluate PTFE-coated or metal-seated valves).
- You are working with **extreme temperatures** outside the valve s rated range.
- Budget constraints make a simpler valve (e.g., a basic diaphragm or ball valve) a more cost-effective solution.
**Alternative Options to Consider:**- **Burkert 2032 with a different diaphragm material** (e.g., PTFE for better chemical resistance).
- **Third-party diaphragm valves** (if cost is a major concern, though reliability may vary).
- **Electrically actuated versions** (if remote control is required).
- **Ball or globe valves** (for simpler on/off applications with higher flow rates).
In summary, this valve is a **strong choice for precision control in compatible applications**, but careful consideration of your specific requirements will ensure optimal performance.
BURKERT 2032 A 20,0 EPDM 5A93 DIAPHRAGM VALVE, Note the orientation on 2 pieces Picture 1 5.