Longer offer a 3-Year Warranty on their range of Peristaltic Pumps.
Peristaltic Pumps - The Working Principle and Advantages
Premier Control Technologies is a leading supplier of Peristaltic Pumps for sale in the UK.
What is a Peristaltic Pump and How does it work?
Peristaltic pumps work by using a flexible tube or hose which is connected to a pump head. The pump head contains a rotating roller which passes along the length of the hose allowing a temporary seal to be created between the suction and discharge side of the pump.
When the pumps rotor turns the sealing pressure moves along the tube or hose forcing the pumped fluid to move away from the pump and into the discharge line. Where the pressure has been released the hose or tube recovers creating a vacuum, which draws the product into the suction side of the pump, the priming mechanism. Combining these suction and discharge principles results in a powerful self-priming positive displacement action. This action of alternating compression and relaxion of the tube is called peristalsis.
Help and advice
A member of our team will be happy to assist with any questions you may have.
Configuring your peristaltic pump involves selection of the peristaltic pump drive, pump head and tubing. The peristaltic pump drive allows the user to select the appropriate drive unit for the application, allowing for a simple dispense or fully automated dispensing of a fluid.
Selection of the pump head is dependent on compatibility with the peristaltic pump itself. Various pumps heads exist, dependant on use with the peristaltic pump as well as number of channels and desired delivery rates for the application.
Pump tubing is also dependant on compatibility with each pump head. Various tubing sizes exist which offer different internal bore sizes. The bore sizes will allow for varying flow rates against pump RPM when used with the compatible pump head. BioSilicone tubing material also exists for specific applications which require certification to USP Class VI, FDA regulation 21 CFR 177.2600 and NSF 51.
Introducing the upgraded BT100-3J Peristaltic Pump
What are the advantages of using Peristaltic Pumps?
Non contacting
The pump does not come into contact with the fluid, the fluid passes only through the pump silicone tubing. This offers great liquid compatibility, as well as maintaining the sterility of the fluid and the pump.
Self-priming
Peristaltic pumps can draw fluid into the tubing when starting dry. This requires a user to fill pump and suction lines with fluid before use which can be inconvenient and also create potential for hazardous spills or contamination.
Highly configurable
Many tubes exist in many different sizes and materials. This allows for a large range or flow rates as well as good compatibility with lots of fluid.
Gentle pumping action (low shear)
Makes a peristaltic pump ideal for handling cells and large proteins, as the pumping action will not damage the content.
Variable speed
Available on some peristaltic pumps, ideal for dosing applications and dispensing applications.
Non-siphoning
Peristaltic pumps prevent back flow into the system thus increasing accuracy during dispensing.
Why does the Longer brand in Peristaltic Pumps have the advantage?
No contamination
Fluid only contacts the bore of the tubing
Fluid does not contaminate the pump
The pump does not contaminate the fluid
No backflow or siphoning
The pump effectively seals the tubing when it is inactive
No valves are needed
Excellent suction
Self-priming up to 9 meters
Low-shear pumping
Suitable for shear-sensitive substances, especially biological fluids, such as proteins and bacteria
Suitable for use with abrasive fluids containing particles
High accuracy metering
Better than ±2% for general fluid transfer applications
Low maintenance
No valves, seals or glands to clog or wear
Tubing is the only consumable part, which can be easily changed
Reputable suppliers of Peristaltic Pumps in the UK
At PCT we are leading UK suppliers of Peristaltic Pump Drives, Pump Heads, Tubing and Tubing Assemblies. We have extensive experience and knowledge within this industry, so you can be rest assured.
Warranty
Longer offer a 3-Year Warranty on their range of Peristaltic Pumps.
What are the Main Operating Markets for Peristaltic Pumps?
A peristaltic pump moves fluids through flexible tubing using rotating rollers or shoes. As the rollers compress the tubing, the fluid is pushed forward in a controlled, pulseless flow—ideal for clean or sterile applications.
Longer is a trusted manufacturer (part of the Halma Group) of high-precision peristaltic pumps used globally in laboratories, OEM equipment, and industrial automation. Their pumps are known for durability, compact design, and accurate flow control.
Yes. Since the fluid only contacts the tubing, Longer pumps are excellent for viscous, abrasive, or shear-sensitive fluids, and reduce the risk of cross-contamination.
PCT supplies a variety of tubing options compatible with Longer pumps, including silicone, PharMed, Viton, and Tygon, each chosen for its chemical resistance or compliance with biocompatibility standards.
Yes. You can choose from manual, analog-controlled, or digitally programmable models. Some pumps support RS485, Modbus, or remote footswitch control for automation and integration.
Yes. Longer offers a broad range of compact OEM pump heads and modules ideal for integration into medical and analytical equipment. PCT can assist with specification and supply.
Absolutely. PCT has hands-on experience with the full Longer Pumps range and can help tailor a system to meet your flow rate, chemical compatibility, and control requirements.
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