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  • Our Blogs and Articles – What to expect

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    Insights, best practices, and product knowledge to support your production

    At Hi-Tech Machinery, we’ve spent the last few months re building our website and our online presence to ensure we are providing our customers with the best experience and support.

    What You’ll Find on our Blogs and Articles

    Our blogs are designed to be a practical resource for anyone involved in liquid filling, from production engineers and process managers to quality teams and decision-makers.

    Over the coming months, we’ll share:

    • Technical insights – breaking down the differences between check valve and rotary valve designs, or between pneumatic and servo-driven pumps.
    • Best practices – tips on maintaining uptime, optimising fill speeds, and extending the life of your equipment.
    • Product spotlights – exploring the strengths of both UBA metering pumps and Z-Axis EVMP pumps, and where each fits best.
    • Application stories – showing how precision dispensing technology can improve performance in industries like pharmaceuticals, cosmetics, food, and more.

    Why Follow Along?

    Every production environment has unique challenges, and we know from experience that precision filling equipment and set-up can make all the difference. This is why we will make sure we offer a range of blogs and articles to cover all industries and challenges you may face. Things like:

    ✅ Selecting the right pump technology for your products

    ✅ Improving line efficiency and reduce waste

    ✅ Achieving consistent accuracy, even with difficult-to-handle fluids

    ✅ Staying informed about new solutions and possibilities

    Looking Ahead…

    We’ll be starting with a series of posts focused on UBA pumps — covering how they work, the differences between valve types, and how they’re used in real-world applications. Later, we’ll introduce the Z-Axis EVMP range and Leak Testers, giving you insights into where these systems shine and how they complement our existing solutions.

    Whether you’re already familiar with Hi-Tech Machinery or just discovering us, we’re glad you’re here! This blog is about sharing expertise, answering questions, and helping you make the most of precision filling technology.

    👉 Be sure to check back regularly for updates — or get in touch with us if you’d like to discuss your application in more detail.

  • Understanding Pump Selection

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    5 min read

    Check Valve Vs. Rotary Valve with UBA Pumps

    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.

    🔄 Check Valve: For Clean, Low-Viscosity Fluids

    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

    🔁 Rotary Valve: For Viscous or Particulate-Rich Products

    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

    ⚖️ Quick Comparison

    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.