Hose and Hose Assemblies. JGB's Hose, Fitting, and Valves CatalogJGB Enterprises Inc. celebrates its 35 years. The owner, Jay G Bernhardt, founded the company in 1977 and  we have grown the company into a leading defense contractor and commercial supplier in hoses and fittings
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Ring Grip Pipe Couplings


Part Name Manufacturer Photograph
Tuf-Lok / Ring Grip / Series 689   Tuf-Lok  Tuf-Lok / Ring Grip / Series 689
Coupling Category  
Pipe Couplings 

The Tuf-Lok ring grip pipe coupling is a rugged, heavy duty, self-aligning and self-grounded pipe coupling with a high end pull for almost any application where pipe ends need to be connected.

Features:
  • Self-aligning
  • Installs quickly
  • High end pull
  • High pressure rated
  • Full vacuum rated
  • Reusable
  • Absorbs vibration
  • Rigid
  • Usable on thin or thick wall pipe
  • Low cost
  • Externally leakproof
  • Self grounding
  • Smooth internal connection
  • Every coupling a union
Options:
  • Rings
    - Mild steel
    - Stainless steel
    - Aluminum
  • Custom gaskets
    - EPDM
    - Buna-N
    - Silicone
    - Fluoroelastomer
    - Others
  • High temperature design to 350° F (176° C)


Nom. Pipe Size (in.) Pipe O.D. (in.) Series Number Maximum W. P. (psig) Maximum End Load* (lbs) Dimensions (in.) Approximate Weight Ea. (lbs)
A B C
1 1.315 689 150 2950 3.76 2.54 1.79 0.5
1-1/2 1.900 689 150 3900 4.36 3.13 1.79 0.6
* Working pressure and end load are total, including equivalent loads based on proper coupling assembly.

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NOTE: The product data on the web site is based on catalog information from the manufacturer.
JGB is not responsible for any errors or changes to that data made by the manufacturer.