sewn loop longline
  • sewn loop longline
  • sewn loop longline
sewn loop longline
sewn loop longline sewn loop longline

SEWN LOOP ON WEBBING

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Sewn Loop Longline

  • Structure: SINGLE = one sewn end loop; DOUBLE = 2 sewn end loops (1 m total length on webbing);
  • High-Tenacity: made in Germany (GUTERMANNpolyester yarn;
  • Inner diameter: 13 cm;
  • Protection to prevent abrasion: chose between one CLASSIC tubular sleeve or doubled tubular JUMBO sleeve;
  • Minimum Breaking Strength: keeping between 80% and 100% MBS of webbing's original MBS;
  • Compatibility: available for all 15-26 mm webbings;
  • Compatibility Connecters: 8 mm OVAL QUICKLINKS or larger (with JUMBO even small SOFTSHACKLES of 5 mm diameter).

WARNING: this product requires the accompanying purchase of any LONGLINE WEBBING.

 

If you are not happy with your purchase you can always return the product

HSSSC

Data sheet

MINIMUM BREAKING STRENGTH
Webbing 80% MBS
MAXIMUM BREAKING STRENGTH
100% of the webbing resistance
SUGGESTED WORKING LOAD
Same as webbing

Specific References

ean13
9506919000
    What is the 3 SIGMA MBS in the product data sheet?

    Hi! Does the 50 meter longline kit come with webbing that has 2 sewn loops? Thanks! SIGMA is an element of statistical calculations, which allows to display a products’ guaranteed strength value throughout its manufacturing process. Therefore, it is related to product safety.  

    During the testing process, the greater the differences between the 10 recorded values, the higher turns out the sigma value.

    For example, for 10 carabiners tested, their ten recorded values are usually different and not the exact same:

    24,9 | 25,9 | 26,2 | 25,6 | 25,8 | 24,7 | 25,5 | 24,7 | 26,0 | 25,7 kN

    So which value to take into account to display the MBS (Minimum Breaking Strength) value? 

    We first calculate the average:

    (24,9 + 25,9 + 26,2 + 25,6 + 25,8 + 24,7 + 25,5 + 24,7 + 26,0 + 25,7) / 10 = 25,5 kN

    We then calculate the variance:

    24,9 - 25,5 = - 0,6    (-0,6)2 = 0,36

    25,9 - 25,5 = - 0,4    ( 0,4)2 = 0,16

    ...and so on for the 10 measured values.

    We add those 10 results:

    0,36 + 0,16 + 0,49 + 0,01 + 0,09 + 0,64 + 0,064 + 0,25 + 0,04 = 2,68

    And we create the average:

    2,68 / 10 = 0,268

    The variance is even to : 0,268

    SIGMA (standard deviation) = square root of 0,268 = 0,5176

    The maximum value displayed on the carabiner would be:

    average of 10 carabiners = 25,5 kN

    SIGMA = - 0,5176

    ____________________________

    Displayed Value = 24,0724 kN

     

    What you should know in particular about the 3 SIGMA safety margin? 

    We use the 3 SIGMA method to calculate the MBS. 

    We multiply the SIGMA for 3 (this is why it is called “3 SIGMA”) to boost the prudency in the MBS calculation.

    Taking the 10 previous carabiners as an example:

    The average of those 10 carabieners is 25,5kN

    3 SIGMA (3 x 0,5176) = - 1,5528

    _____________________________

    Displayed value = 23,0472 kN

     

    Our choice aims to maximize the safety of our users while using our products.  

    Source @Petzl


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SEWN LOOP ON WEBBING

SEWN LOOP ON WEBBING

Sewn Loop Longline

  • Structure: SINGLE = one sewn end loop; DOUBLE = 2 sewn end loops (1 m total length on webbing);
  • High-Tenacity: made in Germany (GUTERMANNpolyester yarn;
  • Inner diameter: 13 cm;
  • Protection to prevent abrasion: chose between one CLASSIC tubular sleeve or doubled tubular JUMBO sleeve;
  • Minimum Breaking Strength: keeping between 80% and 100% MBS of webbing's original MBS;
  • Compatibility: available for all 15-26 mm webbings;
  • Compatibility Connecters: 8 mm OVAL QUICKLINKS or larger (with JUMBO even small SOFTSHACKLES of 5 mm diameter).

WARNING: this product requires the accompanying purchase of any LONGLINE WEBBING.

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