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Super Shielded No Hub Coupling

Introducing Koflex Super Shielded no hub couplings, designed for the most demanding jobs. These enhanced couplings feature an increased torque rating of 80 in/lbs and 3/8″ HEX heads. It also includes a clamp, screws, and shield made entirely of stainless steel for maximum reliability and resistance to corrosion. Depending on the size, they are available with either 4 or 6 bands, providing a super tight seal. Sizes ranging from 1½” – 10″ are available to satisfy any type of application.

-Soft Rubber Gaskets Mold to the Pipes
-Watertight Seal
-Low Expansion and Contraction
-Resistance to Vibrations

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Models

  • Part #

    Description

    Qty/Box

    KF-NHC-200SS

    2″ Super Shielded No Hub Coupling, 4 Bands, 3/8″ HEX-Head

    75

    KF-NHC-300SS

    3″ Super Shielded No Hub Coupling, 4 Bands, 3/8″ HEX-Head

    48

    KF-NHC-400SS

    4″ Super Shielded No Hub Coupling, 4 Bands, 3/8″ HEX-Head

    48

    KF-NHC-500SS

    5″ Super Shielded No Hub Coupling, 6 Bands, 3/8″ HEX-Head

    15

    KF-NHC-600SS

    6″ Super Shielded No Hub Coupling, 6 Bands, 3/8″ HEX-Head

    15

    KF-NHC-800SS

    8″ Super Shielded No Hub Coupling, 6 Bands, 3/8″ HEX-Head

    15

    KF-NHC-1000SS

    10″ Super Shielded No Hub Coupling, 6 Bands, 3/8″ HEX-Head

    10

Technical Data

CERTIFICATIONS, APPROVALS, LISTINGS, & COMPLIANCE

  • UPC
  • Conforms to CISPI 310, ASTM C1540

 

Materials

ClampStainless Steel 301
HousingStainless Steel 301
ScrewStainless Steel 305
ShieldStainless Steel 301
GasketElastomeric compound conforming to ASTM C564

 

Technical Data

Installation Torque80 in/lbs

 

Sleeve Test

TestPhysical Tests – Minimum or Maximum RequirementsASTM
Tensile Strength1500 psi minimumD412
Elongation250 minimumD412
Durometer70 ± 5 @ 76°F ± 5°FD2240
Accelerated Aging15% maximum tensile and 20% maximum elongation deterioration, 10 points maximum increase in hardness, all determinations after oven aging for 96 hours at 158°FD573
Compression Set25% maximum after 22 hours @ 158°FD395
Oil Immersion80% maximum volume change after immersion in IRM 903 for 70 hours @ 212°FD471
Ozone CrackingNo visible cracking @ 2 times magnification of the gasket after 100 hours exposure in 1.5 ppm ozone concentration at 100°F. Testing and inspection to be on gasket which is loop mounted to give approximately 20% elongation of outer surfaceD1149
Tear Resistance150 lbs minimum per inch of thicknessD624
Water Absorption20% maximum by weight after 7 days at 158°FD471

 

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