MASTERFLEX 77420-00 Peristaltic Pump Digital Head I/p 77801-60

( Brand: Masterflex ), ( Manufacturer Part Number: 77420-00 ), ( Part Type: Digital Pump Head )

Review MASTERFLEX I/p Peristaltic Pump Digital Head

The **Masterflex L/S Easy-Load Digital Peristaltic Pump (Model 77420-00) paired with the 77801-60 1/4" ID (Internal Diameter) Pump Head** represents the pinnacle of precision fluid handling in laboratory, industrial, and research applications. Engineered by Cole-Parmer, a leader in fluid management technology, this system combines unmatched reliability with intuitive digital control to deliver consistent, pulsation-free flow rates across a wide range of viscous liquids, corrosive chemicals, and sensitive biological samples. The **Easy-Load digital interface** simplifies operation with a backlit LCD display that provides real-time feedback on flow rate, total volume delivered, and runtime, while the **touch-sensitive controls** allow for effortless adjustments ideal for users who demand both accuracy and ease of use. The **77801-60 pump head**, featuring a **1/4-inch internal diameter tubing path**, accommodates standard laboratory tubing sizes (e.g., 1/16" to 3/16" ID) and is compatible with a variety of elastomeric tubing materials, including **Masterflex C-Flex, Tygon , or Pharmed **, ensuring compatibility with everything from aqueous solutions to aggressive solvents. This pump head s **self-priming design** eliminates air pockets, reducing the risk of contamination and ensuring smooth, uninterrupted operation, even with high-viscosity fluids like oils, adhesives, or cell culture media. The **peristaltic pumping mechanism** where the tubing is pinched sequentially by rotating rollers guarantees zero shear, zero contamination, and zero leakage, making it an ideal choice for applications requiring sterile or sterile-filtered conditions, such as pharmaceutical manufacturing, biotechnology, or clinical diagnostics. Additionally, the **adjustable speed range (0.01 to 999.99 mL/min)** and **precise flow control** ( 1% accuracy) cater to both low-volume microdosing and high-volume transfer needs, while the **pulse dampening feature** minimizes pressure fluctuations, protecting sensitive downstream equipment. Built with durability in mind, the pump s **stainless steel construction** and **IP54-rated enclosure** provide resistance to dust, moisture, and accidental spills, ensuring long-term reliability in demanding environments. Whether used for **sample preparation, automated dispensing, or continuous process monitoring**, the Masterflex 77420-00 with the 77801-60 head delivers a seamless blend of performance, versatility, and user-friendly design, making it an indispensable tool for professionals who require dependable, high-precision fluid transfer.

The **Masterflex L/S 77420-00 (digital controller) with the 77801-60 ETL (Eagle-Tec Low-Pulse) peristaltic pump head** is a versatile and widely used laboratory pump for fluid transfer applications. Below is a detailed breakdown of its pros and cons, followed by a conclusion and recommendation.

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### **Pros**

1. **Precision and Accuracy**

The digital controller (77420-00) provides precise flow rate control, often with an accuracy of 1% of the set value. This makes it suitable for applications requiring consistent and reproducible fluid delivery, such as cell culture, chromatography, or analytical chemistry.

2. **Wide Flow Range**

The 77801-60 head is designed for low to moderate flow rates (typically up to 100 mL/min, depending on tubing size and fluid viscosity). This flexibility allows it to handle a variety of applications, from microvolume transfers to larger-scale processes.

3. **Pump Head Durability and Tubing Compatibility**

The Eagle-Tec Low-Pulse head is known for its durability, especially with silicone or Tygon tubing. It minimizes shear stress on fluids, making it ideal for shear-sensitive samples like cells, proteins, or DNA. The self-priming design reduces the risk of air entrainment.

4. **Digital Control and User-Friendly Interface**

- Adjustable flow rates with a keypad.

- Programmable sequences for multi-step protocols.

- Backlit display for easy readability.

- Some models offer pulse-free operation, reducing turbulence in sensitive applications.

5. **Versatility in Applications**

- Aqueous solutions (buffers, reagents).

- Cell culture media.

- Low-viscosity liquids (e.g., oils, organic solvents).

- Some viscous fluids (though higher viscosity may require larger tubing or a different head).

6. **Easy Maintenance and Cleaning**

The pump head can be disassembled for cleaning, and tubing changes are straightforward. The lack of internal seals (unlike centrifugal pumps) reduces contamination risks.

7. **Quiet Operation**

Peristaltic pumps are generally quieter than positive displacement pumps, making them preferable in noise-sensitive environments like laboratories.

8. **Compatibility with Masterflex Tubing**

The pump works seamlessly with Masterflex tubing, which is widely available in various materials (e.g., silicone, Tygon, PharMed) to suit different chemical compatibility needs.

9. **Safety Features**

- Overload protection to prevent motor damage.

- Some models include alarms or error messages for tubing blockages or other issues.

10. **Modularity**

The system can be expanded with additional heads or controllers for parallel operation, though this requires separate power supplies.

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### **Cons**

1. **Limited Maximum Flow Rate**

The 77801-60 head is not designed for high-volume applications. For flows exceeding 100 mL/min, a larger head (e.g., 77802-60) or a different pump type (e.g., diaphragm or gear pump) may be necessary.

2. **Tubing Wear and Replacement Costs**

The tubing gradually wears out with use, especially with abrasive or particulate-containing fluids. Replacing tubing can be costly over time, particularly if high-purity or specialized tubing (e.g., PharMed) is required.

3. **Potential for Tubing Leaks**

If the tubing is not properly seated or if it degrades, leaks can occur, leading to fluid loss or contamination. This requires regular inspection.

4. **Not Ideal for High-Pressure Applications**

Peristaltic pumps are not designed for high-pressure operations (typically limited to 10 20 psi). For high-pressure needs, a different pump type (e.g., syringe, diaphragm, or piston pump) is more appropriate.

5. **Motor and Controller Limitations**

- The digital controller may lack advanced features found in higher-end models (e.g., Bluetooth connectivity, touchscreen, or PID control).

- Some users report occasional software glitches or calibration drift over time.

6. **Space Requirements**

The pump and controller occupy a moderate amount of bench space, which may be a consideration in compact laboratories.

7. **Cost of Accessories**

Additional components like tubing, adapters, or spare parts can add to the total cost of ownership, especially if specialized materials are needed.

8. **Learning Curve for Advanced Features**

While the basic operation is straightforward, programming sequences or troubleshooting advanced features may require some familiarity with the system.

9. **Not Suitable for Viscous or Abrasive Fluids**

High-viscosity fluids (e.g., honey, thick oils) or fluids with particulate matter can damage the tubing or reduce pump efficiency. A different pump head or pre-filtering may be required.

10. **Limited Lifespan of Tubing**

Even with proper care, tubing has a finite lifespan, and frequent replacements can be inconvenient, especially during critical experiments.

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### **Conclusion**

The **Masterflex 77420-00 (digital) with 77801-60 head** is an excellent choice for laboratories requiring precise, low-to-moderate flow rates with minimal shear stress on fluids. Its digital control, durability, and versatility make it ideal for applications in cell culture, analytical chemistry, and general fluid transfer. However, its limitations in high-flow, high-pressure, or viscous fluid applications must be considered. The pump is best suited for users who prioritize accuracy, ease of use, and compatibility with a wide range of tubing materials.

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### **Recommendation**

- You need a reliable, precise, and low-shear fluid transfer system for low-to-moderate flow rates.

- Your applications involve sensitive samples (e.g., cells, proteins, DNA) where shear stress is a concern.

- You require a user-friendly digital interface with programmable sequences.

- You are working with aqueous solutions, cell culture media, or low-viscosity liquids.

- You can accommodate regular tubing replacements and maintenance.

- You require **high flow rates** (>100 mL/min) or **high-pressure operation** (>20 psi). In this case, evaluate larger peristaltic pump heads (e.g., 77802-60) or other pump types like diaphragm or syringe pumps.

- Your fluids are **highly viscous or abrasive**, which may damage the tubing. A different pump head or pre-filtering may be necessary.

- You need **advanced features** like real-time monitoring, remote control, or touchscreen operation. Higher-end models (e.g., Cole-Parmer Masterflex L/S with touchscreen) or third-party controllers may be worth the investment.

- Your budget is constrained, as the cost of tubing and accessories can add up over time. Compare with other brands (e.g., Watson-Marlow, Ismatec) that may offer similar performance at a different price point.

For most standard laboratory applications requiring precision and low shear, the **Masterflex 77420-00 with 77801-60 head** is a robust and cost-effective choice. Pair it with appropriate tubing (e.g., PharMed for sterile applications or Tygon for general use) and follow maintenance guidelines to maximize its lifespan and performance.

Details:

Masterflex 77420-00 I/P Peristaltic Pump Digital w/ 77801-60 Head. Manuals, cables, power cords, software, drivers, accessories, etc are not included unless pictured or noted in the. 77801-60 Pump Head pump head accepts Masterflex I/P precision tubing sizes: 26, 73, and 82. Tested, fully working and excellent condition Masterflex 77420-00 I/P Series Peristaltic Pump Digital Console Drive with Easy-Load 77801-60 Head.

It withstands dust, moisture, and harsh chemical wash downs. Stainless steel wash down housing on rolling casters with attached 120v Power cord.

part #: 7742000 prices

• $598.83-$4069.16

specifications valvplu:

• brand: Masterflex
• mpn: 77420-00
• part type: Digital Pump Head

returns valvplu:

• paid by: Buyer
• method: Money back
• time: 30 Days
• policy: Returns Accepted

offer valvplu:

• availability: In Stock
• started: June 5, 2026
• quantity: 1
• sold: 0
• options: Ship-to-home

payments valvplu:

• cash
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• credit card: Discover
• wallet: Paypal

seller valvplu:

• rating: 100.0%
• city: San Diego, California
• # reviews: 1272

general valvplu:

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

shipping valvplu:

• type: Calculated
• class: Standard
• service: UPS Ground
• transit: 5-11 Days
• carrier: UPS
• cost: $113.03

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