Pure-Fit® SIB® is a smooth inner bore (SIB) hose-barb connector that provides a seamless transition between tubing and fittings throughout the fluid path. Pure-Fit SIB eliminates entrapment and leak points that can occur with traditional assembly systems. The unique internal design eliminates voids or dead space that can lead to turbulence or stagnation of fluid flow, creating the potential for bacterial growth.

Pure-Fit® SIB® fittings are fully compatible with Pure-Fit and BarbLock® retainers that provide complete 360° compression for leak-free connections.

Pure-Fit® SIB® fitting systems meet all USP Class VI and ISO criteria and have been physically tested to meet the most demanding applications and stringent test protocols.

Available in both animal-free and BPA-free polypropylene (PP) and polyvinylidene fluoride (PVDF) materials, Pure-Fit® SIB® provides a seamless transition that maintains complete fluid integrity when used with Saint-Gobain’s Bio-processing Tubing series, such as Sani-Tech®, C-Flex®, and PharMed®, etc. flexible tubing.

Features / Benefits

• Total smooth inner bore (SIB) transition design.
• Sterilizable by gamma irradiation.
• No excessive voids at the interface or in the fluid path.
• Eliminates entrapment and leak points that occur with traditional fitting systems.
• Utilizes the patented Barb Lock retention and seal system.
• Complete 360° compression along the entire fitting system.
• Pure-Fit® SIB® fitting systems meet all USP Class VI and ISO criteria. 
• All materials are completely animal-free and BPA-free.
• Manufactured and packaged in a certified clean room.
• All-inclusive Validation Guide and the Regulatory Information Overview (RIO) are available for customers upon request.

Typical Applications

• Biopharmaceutical manufacturing                                            
• Media hydration
• Filtration                                                                                             
• Cell culture/harvesting
• Product Sampling                                                                            
• Downstream activities

Find our IN-STOCK Pure-Fit® SIB® Polypropylene Bio-processing Fittings on our E-Commerce Site

Compatibility & Leak-Free Connection (360° compression):

Pure-Fit® SIB® is compatible with any Saint-Gobain Bio-processing tubing such as C-Flex, Sani-Tech Platinum-cured silicone, Pharmed, etc. 

Saint-Gobain guarantees leak-free 360° compression of the fittings with BarbLock® retainers.  

BarbLock Retainers ensure smooth flow through the inner bore while maintaining leak-free 360° compression. 

Regulatory Compliance (Biocompatibility, Physicochemical & Extractable Testing)