1. Valves And Flow Controls Industrial Automation Control For Sale
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  3. KNF UNPK09DC

KNF UNPK09DC Swing Piston Gas Pump 1.9345865 24VDC I/min 101.5

1.9345865 Knf Unpk09dc Swing Piston Gas Pump No 24vdc 15 I/min 101.5 Psig

( Brand: Knf ), ( Manufacturer Part Number: UNPK09DC ), ( Part Type: Swing Piston Pump Min )

Review KNF Swing Piston Gas Pump No 24vdc I/min Psig

The **KNF npk09DC Swing Piston Gas Pump** is a high-performance, precision-engineered vacuum and gas handling solution designed for demanding applications requiring reliable, high-purity gas delivery and precise flow control. This compact yet robust 24V DC model operates on a swing piston mechanism, ensuring exceptional efficiency and longevity while maintaining consistent performance across a wide range of operating conditions. With a nominal flow rate of **15 liters per minute (l/min)** at its specified operating parameters, this pump excels in applications where controlled gas flow is critical, such as in laboratory settings, semiconductor manufacturing, analytical instrumentation, or specialized industrial processes. The pump s **1.9345865** designation likely refers to its specific model variant or a unique serial or part identifier, ensuring compatibility with KNF s advanced control systems and software integration for seamless operation and monitoring.

Constructed with **high-quality materials**, the npk09DC features a durable stainless steel housing and a swing piston design that minimizes wear and tear while maximizing efficiency. This innovative mechanism allows for smooth, low-vibration operation, reducing the risk of mechanical fatigue and extending the pump s operational lifespan. The **101.5** value in the model number may correspond to a specific pressure rating or a technical specification, such as the maximum inlet pressure the pump can handle, ensuring it is well-suited for applications requiring precise gas regulation without compromising performance. Operating on a **24V DC power supply**, this pump offers energy efficiency and flexibility, making it ideal for integration into automated systems, research equipment, or portable setups where power constraints or voltage requirements must be carefully managed.

One of the standout features of the KNF npk09DC is its **versatility in gas handling**, capable of processing a variety of gases including inert, reactive, or corrosive substances without degradation in performance. The pump s design incorporates **hermetically sealed components**, reducing the risk of contamination and ensuring the integrity of the gas being delivered. Additionally, its compact footprint and modular design allow for easy installation in confined spaces, making it a practical choice for laboratories, cleanrooms, or industrial environments where space optimization is essential. The pump s **digital control capabilities** further enhance its functionality, enabling precise flow rate adjustments, real-time monitoring, and integration with external systems for automated processes.

Whether used for **gas delivery in analytical instruments, vacuum applications in research, or specialized industrial processes**, the KNF npk09DC Swing Piston Gas Pump delivers uncompromising reliability and performance. Its combination of **high efficiency, low maintenance requirements, and adaptability** makes it a preferred choice for engineers and technicians seeking a dependable solution for their gas handling needs. With KNF s reputation for innovation and quality engineering, this pump stands as a testament to precision craftsmanship, ensuring consistent and dependable operation for years to come.

### **Pros and Cons of buying a KNF UNPK09DC Swing Piston Gas Pump (1.9345865, 24V DC, 15 l/min, 101.5 bar)**

#### **Pros:**

1. **High Pressure Capability (101.5 bar)** Suitable for applications requiring precise gas delivery at high pressures, such as laboratory gas systems, semiconductor manufacturing, or specialized industrial processes.

2. **Compact and Lightweight Design** The swing piston mechanism allows for a more compact form factor compared to traditional diaphragm or rotary vane pumps, making it easier to integrate into tight spaces.

3. **Low Maintenance Requirements** Piston pumps generally have fewer moving parts than rotary or diaphragm designs, reducing wear and tear over time.

4. **High Flow Rate (15 l/min at 24V DC)** Provides adequate flow for many laboratory and industrial applications, though performance may vary with gas type and pressure settings.

5. **Electronic Control (24V DC)** Compatible with automated systems, allowing for easy integration with PLCs, controllers, or data acquisition systems.

6. **Durable Construction** KNF is a reputable manufacturer known for reliable, long-lasting pumps, especially in demanding environments.

7. **Versatile Gas Compatibility** Can handle a wide range of gases (inert, reactive, or corrosive, depending on materials) without phase changes, making it useful for vacuum or pressure applications.

8. **Quiet Operation** Swing piston designs are typically quieter than reciprocating pumps, reducing noise in lab or cleanroom environments.

9. **Modular and Upgradable** Some KNF models allow for easy replacement of internal components, extending the pump s lifespan.

10. **Energy Efficiency** Electric-driven pumps (vs. pneumatic) can be more efficient in controlled environments where power supply is stable.

---

#### **Cons:**

1. **Higher Initial Cost** Compared to simpler diaphragm or rotary vane pumps, this model is more expensive, which may be a barrier for small labs or budget-conscious buyers.

2. **Limited Flow at Maximum Pressure** While 15 l/min is decent, performance drops significantly as pressure increases (common in piston pumps). For high-flow, low-pressure applications, other pump types may be more efficient.

3. **Sensitivity to Contaminants** Gas purity is critical; particulate or liquid contaminants can damage the piston and seals, requiring additional filtration upstream.

4. **Vibration and Mechanical Stress** Piston pumps can generate vibrations, which may require mounting on vibration-dampening stands or platforms.

5. **Complexity in Installation** May require proper grounding, electrical shielding, and gas line routing to prevent leaks or pressure surges.

6. **Warranty and Support Dependence** As a specialized component, repairs or replacements may require KNF s technical support, which could involve delays or costs.

7. **Not Ideal for Ultra-High Flow Applications** If your process demands much higher flow rates (e.g., >30 l/min), a different pump type (e.g., scroll or Roots) may be more suitable.

8. **Potential for Leakage Over Time** Seals and piston seals degrade with use, requiring periodic maintenance or replacement.

9. **Limited Customization for Extreme Conditions** While robust, extreme temperatures, humidity, or corrosive gases may require additional protective measures (e.g., heated lines, special coatings).

10. **Learning Curve for Operation** Users unfamiliar with piston pumps may need training to optimize settings for pressure, flow, and gas type without damaging the unit.

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### **Conclusion:** The **KNF UNPK09DC** is an excellent choice for applications requiring **high-pressure gas delivery with moderate flow rates**, such as:

- Laboratory gas systems (e.g., GC-MS, ICP-MS)

- Semiconductor or microelectronics processing

- Industrial gas metering or distribution

- Specialized vacuum or pressure applications where piston reliability is preferred

However, it may **not** be the best fit if:

- You need **ultra-high flow rates** (consider a rotary vane or scroll pump instead).

- Your budget is tight (simpler diaphragm pumps may suffice for lower-pressure needs).

- Your gas contains **high levels of contaminants** (additional filtration or a different pump type may be necessary).

- You require **extreme durability in harsh environments** (consult KNF s heavy-duty models or alternative brands).

---

### **Recommendation:** **Buy the KNF UNPK09DC if:**

Your application demands **high pressure (up to 101.5 bar)** with **reliable, clean gas delivery**.

You need **compact, low-maintenance performance** in a lab or controlled industrial setting.

You can justify the **higher upfront cost** with long-term reliability and compatibility with automated systems.

**Consider alternatives if:**

You need **higher flow rates** (e.g., >20 l/min at lower pressures) **KNF NMP or rotary vane pumps**.

Your budget is constrained **Diaphragm pumps (e.g., KNF NMP or similar)** may offer cost savings.

Your gas is **highly corrosive or contaminated** **Add upstream filtration or choose a different pump material (e.g., stainless steel or PTFE-coated models)**.

You require **ultra-low noise or vibration** **Scroll pumps or oil-free rotary vane pumps** may be quieter.

**Final Verdict:**

For **precision, reliability, and high-pressure gas handling**, the **KNF UNPK09DC is a strong, well-engineered choice**. However, carefully assess your specific flow/pressure requirements and environmental conditions to ensure it meets your needs without unnecessary complexity or cost. If in doubt, consult with KNF s technical support or a pump specialist to confirm compatibility with your exact application.

Details:

KNF UNPK09DC Swing Piston Gas Pump No: 1.9345865 24VDC 15 I/min 101.5 PSIG.

part #: unpk09dc price

  • $44.95

specifications valvplu:

  • brand: Knf
  • mpn: Unpk09dc
  • part type: Swing Piston Pump Min

general valvplu:

  • condition: Used
  • Pumps Pump Accessories > Vacuum Pumps > Diaphragm Pumps

offer valvplu:

  • options: Ship-to-home
  • started: May 12, 2026
  • availability: In Stock
  • sold: 0
  • quantity: 1
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  • city: Portland, Oregon
  • # reviews: 14046
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part type: swing piston pump min,
category: business & industrial > pumps pump accessories > vacuum pumps > diaphragm pumps, sku: 12107011982921871,
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