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NL3400 - ContiTech Smooth Pyroflex II Tar & Asphalt Transfer Hose

NL3400 is used for the transfer of high temperature petroleum based materials such as tar, asphalt, and hot oils. It is suitable for suction and discharge service on tank trucks, tank cars, or at bulk stations. Maximum temperature rating for hot oils is 200°F (93°C). Resistant to ozone, weathering, and abuse.

SPECIAL NOTE: This hose has unique coupling requirements due to the thermal cycling of hot tar & asphalt applications; excessive heat changes the consistency of the rubber hose and can make it "gummy", hence making fitting retention more difficult and dangerous. Careful installation and monitoring of the assembly during service is required. At this time "Crimp Sleeves or Ferrules" are NOT recommended.

Typical Fittings: N70 Tri-lokt nipples or Camlocks with multiple band & buckle straps. Also can use Interlocking Ground Joint Couplings with Interlocking Clamps. At this time "Crimp Sleeves or Ferrules" are NOT recommended due to the thermal cycling mentioned above. Use VITON gasket for better heat resistance as compared to standard Buna-N nitrile gaskets. Fittings must be secured with reliable clamping method as the high temperatures of hot tar and asphalt causes the rubber to become spongy, thereby losing clamping integrity.

Construction: Tube: Smooth, black, special heat resistant nitrile. Cover: Wrapped, smooth, black Wingprene (neoprene blend) with a red spiral stripe. Reinforcement: Wire helix between synthetic textile plies.

Temperature Range: -32°C (-26°F) to +177°C (351°F); Hot Oils: 93°C (200°F)

Detail Comments: This hose has unique coupling requirements due to the thermal cycling of hot tar & asphalt applications; excessive heat changes the consistency of the rubber hose and can make it "gummy", hence making fitting retention more difficult and dangerous. Careful installation and monitoring of the assembly during service is required. At this time "Crimp Sleeves or Ferrules" are NOT recommended.

Notice: Ground hose when cplg, use interlock frls, use Viton gaskets

Cut Method: Hacksaw & Side Snips for Wire - Wear Safety Gloves

Product Name SKU Price Add to Cart Availability Weight (lbs)
1-1/2" CONTITECH SMOOTH PYROFLEX ll HOT TAR & ASPHALT 150 NL3400-150
1+FT$42.27
100+FT$26.21
 
Call for Availability 1.04
2" CONTITECH SMOOTH PYROFLEX ll HOT TAR & ASPHALT 150 PSI NL3400-200
1+FT$22.63
20+FT$19.15
100+FT$17.41
 
C - Less Common Item 1.33
3" CONTITECH SMOOTH PYROFLEX ll HOT TAR & ASPHALT 150 PSI NL3400-300
1+FT$40.86
20+FT$34.58
100+FT$31.43
 
C - Less Common Item 2.23
4" CONTITECH SMOOTH PYROFLEX ll HOT TAR & ASPHALT 150 PSI NL3400-400
1+FT$52.67
20+FT$44.57
100+FT$40.52
 
C - Less Common Item 2.91
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