UBA P1–P5 Pneumatic Series Overview

  • UBA P1–P5 Pneumatic Series Overview

    P4-1 series precision metering pump

    At Hi-Tech Machinery, we know that precision matters, especially when it comes to filling liquids accurately and repeatably. Our UBA P1–P5 pneumatic metering pumps provide a reliable solution for manufacturers across industries, from cosmetics to chemicals.

    This post will help you navigate the P-series models and choose the right fit for your specific application.

    Image Caption Goes Here
    ModelTypical Dispense Volume RangeIdeal ForNotes
    UBA P10.1 – 1.5 mlMicro-dosing, lab use, R&DExtremely high precision for small volumes
    UBA P21 – 10 mlSmall batch filling, diagnosticsGreat for low-viscosity liquids in controlled environments
    UBA P35 – 50 mlPersonal care, cosmetics, foodMost versatile – suitable for a wide range of fluids
    UBA P420 – 200 mlMedium-volume production linesCommon in chemical, household, and food applications
    UBA P5 |50 – 500 ml+High-volume filling, bulk packaging |Built for industrial-scale throughput

    Viscosity of the fluid:
    Use check valve configurations for clean, low-viscosity products (up to 20,000 cps), and rotary valve versions for thicker fluids and those containing particulates (>20,000 cps).

    Required fill volume and throughput:
    Match your model to your output needs. Smaller fills? Go P1 or P2.
    Bulk filling? P4 or P5 will serve best.

    Environment:
    Pneumatic systems are particularly well-suited for cleanrooms, air-powered production facilities, or areas where electric components are restricted.


    UBA P3 rotary valve for lotions and creams in cosmetic production filling

    UBA P1 or P2 check valve in laboratory settings for medicinal products for precise micro dosing.

    UBA P4 or P5 used in applications for larger volumes with particulates – commonly used in the food industry.


    🤝 Need Help Choosing?

    We’re here to guide you. Get in touch with us and we’ll walk you through the best UBA pneumatic pump for your application.

  • Introduction to UBA Metering Pumps

    P1 series precision metering pump

    In industries where accuracy, repeatability, and reliability aren’t just beneficial, but essential, precision dispensing technology can make all the difference. At Hi-Tech Machinery, we specialise in providing liquid filling equipment that meet the highest standards of performance and consistency. One of our flagship product lines is the UBA range of metering pumps, trusted by manufacturers across sectors for their precise, clean, and efficient liquid dispensing. Whether you’re filling pharmaceutical vials, cosmetic containers, food sauce sachets or chemical products, UBA pumps are designed to deliver exceptional results—time after time.

    UBA metering pumps are volumetric piston filling systems engineered for high-accuracy liquid filling. They are available in both pneumatic and servo-driven variants and come in a series of five models (P1 through P5) to suit a wide range of applications. What sets them apart is not just their precision, but their modular, hygienic design, which makes them ideal for everything from small-scale lab use to high-speed production lines.

    • Pneumatic UBA Pumps offer a cost-effective, reliable solution for semi-automatic or fully automated lines where consistent air supply is available. 
    • Servo-Driven UBA Pumps provide more precise control, smoother dispensing, and greater flexibility in adjusting fill parameters—perfect for complex or variable products.

    Both options deliver repeatable results, but servo systems often excel in environments requiring tighter control and traceability.

    Not all fluids behave the same, which is why UBA pumps are available in two distinct valve configurations:

    Check Valve Pumps
    Ideal for low- to medium-viscosity liquids (up to ~20,000 centipoise) with no particulates. These are commonly used in pharmaceuticals, cosmetics, and food-grade applications.

    Rotary Valve Pumps 
    Designed for higher-viscosity fluids and those containing soft or suspended particulates (>20,000 cps), such as sauces, gels, creams, or chemical slurries.

    This versatility makes UBA pumps a popular choice across industries, capable of handling everything from water-like fluids to viscous pastes.

    UBA pumps are engineered to deliver exceptional volumetric accuracy, often achieving repeatability within ±0.5%. This level of precision is critical for companies focused on product integrity, regulatory compliance, and minimising waste.

    Each pump is constructed with robust, corrosion-resistant materials and designed for easy maintenance and cleaning. This results in lower downtime, longer pump life, and reduced total cost of ownership.

    Whether you’re scaling up production, automating for the first time, or refining an existing filling line, UBA pumps provide a scalable, reliable solution. With modular design and a wide range of configurations, they can grow alongside your business needs.

    📣 Stay Tuned

    In upcoming posts, we’ll explore the differences between each UBA series, help you choose between pneumatic vs. servo, and take a closer look at common applications and best practices for maintenance. Whether you’re a plant manager, technician, or engineer, there’s something here for you.

  • Understanding Pump Selection

    Drink factory production line fruit juice beverage product at conveyor belt.

    When choosing a UBA pump for your filling application, the valve configuration is just as important as the pump model. UBA pumps can be supplied with either dual check valves or a single rotary valve, and selecting the right one can significantly impact performance, reliability, and product quality.

    In this post, we’ll break down the differences, applications, and considerations when deciding between check valve and rotary valve UBA pump configurations.

    Best for: 

    ✔ Fluids up to 20,000 cps 

    ✔ Clean products without suspended particles 

    ✔ Thin to moderately viscous liquids

    How it works: 

    Check valves use spring-loaded poppets to allow flow in one direction and prevent backflow. They are ideal for precise dosing of free-flowing products where clogging or shear is not a concern.

    Typical applications:

    • Medical reagents 
    • Perfumes and fragrances 
    • Food sauces 
    • Water-thin cosmetics or serums

    Why choose it? 

    ✅ High speed and precision for clean fills 

    ✅ Lower maintenance compared to rotary valves 

    ✅ Compact and cost-effective solution


    Best for: 

    ✔ Viscosities above 20,000 cps (like gels or pastes)

    ✔ Products with suspended solids or particulates 

    ✔ Shear-sensitive or sticky materials

    How it works:

    Rotary valves use a rotating port to align inlet and outlet paths at different phases of the pump cycle. This design allows thicker fluids and particulates to pass through without clogging or compromising accuracy.

    Typical applications 

    • Lotions with particulates 
    • Creamy sauces 
    • Industrial greases 
    • Suspensions or emulsions

    Why choose it? 

    ✅ Handles thick or challenging fluids with ease 

    ✅ More robust for long production runs 

    ✅ Reduces shear stress on sensitive products


    FeatureCheck Valve                        Rotary Valve                         
    Max Viscosity        Up to 20,000 cps                   Over 20,000 cps                       
    Particulates         Not recommended                   Ideal for suspended solids            
    Maintenance  Simple, fewer moving parts         More components, regular checks needed
    Flow Type            Free-flowing, clean liquids         Thick, sticky, shear-sensitive fluids 
    Speed & RepeatabilityHigh (with correct setup)                  High (with correct setup)             

    🧠 Final Thoughts: Which One Is Right for You?

    If you’re filling clear, low-viscosity products, go with the check valve version for simplicity and speed. For viscous, textured, or products with particulates, the rotary valve setup is your go-to.

    Still unsure? Our team can help you evaluate your product, production goals, and operational environment to guide you toward the ideal pump and valve configuration.

    📩 [Reach out here] and we’ll walk you through your options.