Single-use assemblies

Puresu single-use tube assemblies


puresu single-use tube assemblies

Custom single-use assemblies designed for your bioprocess

puresu® is a combination of different components that can be customized to your requirements. Through a broad range of tubing and single-use components combined across an open architecture design, we work with you to create a sterile and dependable fluid path customized to your bioprocessing requirements.

Each of our single-use assemblies are manufactured in-house and are lot traceable throughout our process. To ensure our single-use technology comes ready to use, and meets the requirements set by cGMP guidelines, lot traceability of each component can be made available as part of our detailed documentation.

Assembly and packaging are carried out in our ISO 14644-1 Class 7 Cleanroom manufacturing suite. Sterile tube assemblies are available with a 10-6 SAL and a two year sterility shelf life, validated in compliance with ANSI/AAMI/ISO 11137 VDmax 25 methodology.

Features and benefits

  • Sterile tube assemblies are available with a 10-6 SAL (sterility assurance level)
  • Safe, flexible and quick turnaround backed with a robust supply chain.
  • Complete product traceability.
  • Large component library to choose from.
  • Documented quality systems compliant with ISO 9001.

Technical summary

SterilityGamma irradiated (minimum 25 kGy), Non-irradiated, Sterile (10-6 SAL) 

Technical Summary table lists features available within the range. See ‘Technical specifications’ tab for model specific information.


Technical specifications

CertificationADCF, ISO 14644-1 Class 7, ISO 9001, ISO10993, USP Class VI 
SterilityGamma irradiated (minimum 25 kGy), Non-irradiated, Sterile (10-6 SAL) 



  1. Bioprocessing industry (US).pdf
    PDF - 2.9mb
  2. puresu brochure (US).pdf
    PDF - 1.2mb



We work with you to deliver a final design that is specific and reliable to your bioprocessing needs. To align with your requirements, puresu® single-use assembly packaging configurations may include non-irradiated, gamma irradiated (minimum 25 kGy) or gamma irradiated with a 10-6 SAL claim.

Sterile puresu®

Ideal for critical fluid path bioprocesses and customers unable to terminally sterilize. Supplied gamma irradiated with a sterile assurance level claim (10-6 SAL). Suitable for customers who require contamination risk mitigation.

Gamma Irradiated puresu®

Suitable for customers who manage microbial control through bioburden reduction.

Non-Irradiated puresu®

Suitable for prototype evaluation and the application of alternative sterilization methods.


We employ an open architecture approach to enable flexibility of your assembly designs. puresu® assemblies are available with the following:

  • A range of fluid path components including Watson-Marlow Tubing products (ReNu SU cartridges, Pumpsil®, PureWeld® XL, BioPure tubing, BioPure tubing fittings, sanitary hose barbs, Bio-Clamps, valves and adapters)
  • Product options include: non-gamma irradiated, gamma irradiated (minimum 25kGy) or gamma irradiated with a sterile claim (10-6 SAL).
  • Documented quality systems compliant with ISO 9001


 Pumpsil®Bioprene®PureWeld®GORE® STA-PURE® PCSGORE® STA-PURE® PFLBioPure Braided Hose
Bore sizes available 0.5 mm - 25.4 mm 0.5 mm - 25.4 mm 0.5 mm - 25.4 mm 1.6 mm - 25.4 mm 1.6 mm - 15.9 mm 3.2 mm-25.4 mm
Wall thickness available 1.6 mm - 4.8 mm 1.6 mm - 4.8 mm 1.6 mm - 4.8 mm 1.6 mm - 4.8 mm 1.6 mm - 3.2 mm  
Operating temperature -20 °C to 80 °C 5 °C to 80 °C -20 °C to 80 °C -20 °C to 80 °C -20 °C to 80 °C -65 °C to 254 °C
USP Class VI
European Pharmacopoeia 3.1.9    
ISO 10993  
Up to 10,000 hours pumping life    
High pressure capability (2-7 bar)    
Low gas permeability      
Wide chemical resistance      
Lot traceable from raw material to finished product
Gamma stable      
Animal Derived Component Free (ADCF)  
 Bio Y™BioBarb™FlatBioEndCap™BioEndCap™BioClamp®Q-Clamp™BioValve™Gaskets
Sizes available 1/4” - 1” 1/8” – 5/81/8” – 1” 1/2” – 2 1/2 1/2” – 1 1/2 1/2” – 8” 1/2”-1” 1/8” – 1 1/4” OD Tubing 1/2”-6”
Pressure rating 4 bar 4 bar 4 bar 4 bar 6-10 bar 7 bar 10 bar 6-10 bar*
Can be gamma or autoclave sterilised
USP Class VI
European Pharmacopoeia 3.1.9      
Animal derived component free (ADCF)
Glass reinforced nylon          
Platinum-Cured Silicone              
Tamper evident sizes         1/2” – 4” Both Variants Both Variants  

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