BarbLock® Fittings

When it comes to retaining flexible tubing and hose onto barbed fittings, the BarbLock® retainer is the most advanced product currently available.

BarbLock® is the only retainer with a full 360-degree radial crimp behind the barb and 360 degrees of compression directly over the barb’s ridge, a design that solves inherent leak path problems in demanding fluid transfer applications. BarbLock® retainers are constructed from high-performance polypropylene that meets USP Class VI criteria.

They require no adhesives or solvents, making them particularly well suited to systems that handle sensitive liquids and gases, and are available in high temperature materials for thermally demanding environments. The system is also quick and easy to assemble.

BarbLock® retainers have become the standard in many biopharmaceutical, medical and laboratory applications because of their ability to ensure leak-free connections between fittings and tubes.


BarbLock® Brochure in PDF Format

 


Features/Benefits
  • Compatible with all flexible tubing materials
  • Full 360° radial crimp behind the barb
  • 360° compression directly on the barb’s ridge
  • Eliminates solvent bonding, ultraviolet bonding and toxic adhesives
  • Constructed with USP Class VI materials
  • Custom color and identification options available
  • Quick and easy to assemble
Typical Applications
  • Biopharmaceutical transport systems
  • Flexible tubing and hose retainers
  • Disposable assemblies
  • Dialysis equipment
  • IV assemblies
  • Catheters and cardiovascular

 

How BarbLock® Works

 
1.  Load sleeve and collet, leading with ends marked “Top”.
2.  Install barbed fitting
3.  Move collet to base of tube
4.  Lower sleeve over collet to pre-locked position
5.  Lock assembly with BarbLock® tool
   

 

BarbLock® versus Competing Retainer Systems

Barblock® has been tested to 700 PSI and is engineered for each combination of hose and fittings.

Single Retainer Inherent Leak Path Removed 360° Radial Crimp Behind the Barb 360° Compression Over Barb Ridge Integral Component Design Engineered Composite Construction
BarbLock® Yes Yes Yes Yes Yes
Cable Tie No No No No No
Hose Clamp No No No No No
Ear Clamp No No No No No

 

BarbLock® versus Cable Tie (Click graphic for larger version):

 

Typical Physical Properties
Mechanical Nominal Values Test
Tensile Strength @ Yield, psi (MPa) 4,800 ASTM D638
Tensile Strength @ Break, psi (MPa) 2,000 ASTM D638
Tensile Strength @ Yield 18% ASTM D638
Tensile Strength @ Break 46% ASTM D638
Flexural Modulus, psi (MPa) 145,000 ASTM D790
Impact    
Notched Izod Impact @ 73°F (23°C) 1.10 ft-lb/in ASTM D256
Unnotched Izod Impact @ 73°F (23°C) No Break ASTM D256
Notched Izod Impact @ 0.0°F (-18°C) 3.10 ft-lb/in ASTM D256
Gander Impact 73°F (23°C) 0.125 ub 153 in-lb ASTM D3029
Hardness    
Rockwell Hardness (R-Scale) 93.0 ASTM D785
Thermal    
DTUL @ 66 psi - Unannealed 172° ASTM D1003
Optical    
Haze 9.0% ASTM D1003

 

 

Stock Sizes and Compatibility
Catalog Number* Hose/Tubing O.D.** Hose/Tubing I.D. Barbed Fitting
000 Series
BL135062-AL 3/16"  •  4.8mm 1/16"  •  1.6mm 1/16"  •  1.6mm
BL135093-AL 7/32"  •  5.5mm 3/32" •  2.4mm 3/32" •  2.4mm
125 Series
BL135125-AL 1/4"  •  6.4mm 1/8"  •  3.2mm 1/8"  •  3.2mm
BL135125 1/4"  •  6.4mm 1/8"  •  3.2mm 1/8"  •  3.2mm
187 Series
BL135187 516"  •  7.9mm 3/16"  •  4.8mm 3/16"  •  4.8mm
250 Series
BL135250 3/8"  •  9.5mm 1/4"  •  6.4mm 1/4"  •  6.4mm
BL135251-AL 7/16"  •  11.1mm 1/4"  •  6.4mm 1/4"  •  6.4mm
BL135251 7/16"  •  11.1mm 1/4"  •  6.4mm 1/4"  •  6.4mm
BL135252 1/2"  •  12.7mm 1/4"  •  6.4mm 1/4"  •  6.4mm
375 Series
BL135374 9/16"  •  14.3mm 3/8"  •  9.5mm 3/8"  •  9.5mm
BL135375 5/8"  •  15.9mm 3/8"  •  9.5mm 3/8"  •  9.5mm
500 Series
BL135500 3/4"  •  19.0mm 1/2"  •  12.7mm 1/2"  •  12.7mm
BL135501 3/4"  •  19.0mm 1/2"  •  12.7mm 1/2"  •  12.7mm
625 Series
BL135625-AL 7/8"  •  22.2mm 5.8"  •  15.9mm 5.8"  •  15.9mm
BL135625 7/8"  •  22.2mm 5.8"  •  15.9mm 5.8"  •  15.9mm
750 Series
BL135750-AL 3/4""  •  19.0mm 1-1/4""  •  31.75mm 1-1/4""  •  31.75mm

* = When ordering high heat retainers, add suffix PVDF to the number. Example: BL135500PVDF
** = IMPORTANT NOTE: Hose/Tubing O.D. is the most important number when selecting a retainer size.

 

BarbLock® Assembly Options

Barblock retainers can be installed quickly and easily using any of the following assembly options:

Tabletops:
  • Through Bench PAD Tabletop Deluxe - Fully assembled closing unit with sterilizable Poly-Tech top.
  • Through Bench PAD Walkup - Fully assembled portable closing using with sterilizable Poly-Tech top - Great for bag ports.
  • Through Bench PAD Table Deluxe - Fabricated from stainless steel, with clean room casters - Simple on-site assembly required.
Hand-Held Assembly Devices:
  • BLT-PAD - Standard pneumatic assembly device (PAD) - Can be hand-held or bench-mounted.
  • PBT-PAD-HD - Heavy duty pneumatic assembly device (PAD) - Can be hand-held or bench-mounted.
Hand Tools
  • Stainless Steel Jaws / Plastic Handles - For retainer closure.
  • Stainless Steel Jaws and Handles - For retainer closure.
  • Disposable Plastic (PVDF) - For retainer closure.
  • Universal Removable Tool - For retainer closure.
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