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Cable Glands and Fittings for hazardous duty Locations

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Liquid Tight Cable Gland FittingsLiquid Tight Cable Gland Fittings for Hazardous AreasM16, M23, M27, M40 Circular ConnectorsEnclosures (Plastic & Metal)Enclosures (Plastic & Metal)AccessoriesLiquid Tight Cable Gland Fittings for Hazardous Areas
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Liquid Tight Cable Glands
Liquid Tight Cable Glands
Verification IP ratings:
Q: What is the IP rating for an HSK-K (Nylon) fitting WITHOUT an O-Ring?
A: IP54 should be achieved without an O-Ring. It all depends on the surface. If the surface (contact point of Hex shoulder) is smooth an IP67 rating can be achieved. It is the customer’s responsibility to test for higher ratings.
Q: Do ratings different between knockout and threaded installations?
A: No, they are the same!
Q: Why do HSK-M (Nickel Plated Brass) fittings come with O-Rings?
A: Because the material is harder and won’t seal as well as a non-metallic (Nylon) fitting. All metal fittings must have an O-Ring.
Q: Do NPT fittings need O-Rings?
A: NPT fittings in threaded installations don’t really require an O-Ring. Hex shoulder is not supposed to touch a surface. An NPT fitting used in a knockout installation should have an O-Ring if a higher than IP54 rating must be achieved.    
Q: Is an O-Ring recommended in all ‘wet’ applications?
A: Yes, it is!
Q: What about wet spray but not submersed?
A: Hummel Cable Strain relief offer an IP69K rating as well. This is a protection in hose down / splash down environments (car wash, transportation, food processing, bottling plants, dairy, etc.). To meet this rating you must have an O-Ring installed.  
Q: Is an O-Ring a better solution than a washer?
A: An O-Ring in a Sealcon Strain relief is in-bedded in an O-Ring groove and remains that way. A (Neoprene) washer as seen with competitive brands may ‘explode’ under pressure resulting in leakage / lose components.
Q: What else may affect a liquid tight installation?
A: Fit of cable in Cable Gland (snug fit is best), torque of SRF body in installation as well as dome top onto cable (seal), cleanliness of knockout (no burr), strong temperature fluctuations, vibration, pressure, etc.  

Hi-Tech Controls, Inc. is your one stop source for European & Domestic wire and cable requiring RoHS, UL, CSA, Harmonized and CE approvals. Supplier of Hensel Enclosures and a large selection of camozzi Pneumatic Components.
7374 S. Eagle Street
Centennial, CO 80112-4221 USA
Toll Free: 800-456-9012 / 303-699-1135  Fax: 303-680-5344
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