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4-Flex-Lok-550-25 Flexaust Flex-Lok 550 4 inch Fume Duct Hose - 25ft
4-Flex-Lok-550-25 Flexaust Flex-Lok 550 4 inch Fume Duct Hose - 25ft
4-Flex-Lok-550-25 Flexaust Flex-Lok 550 4 inch Fume Duct Hose - 25ft
4-Flex-Lok-550-25 Flexaust Flex-Lok 550 4 inch Fume Duct Hose - 25ft

4-Flex-Lok-550-25 by Flexaust | #1800400025 | Flex-Lok 550 Fume Duct Hose | 4 inch | 25ft

Save $75.82 Save $75.82
$519.82
$519.82 - $519.82
$519.82
$444.00
$444.00 - $444.00
$444.00
25 ft | $17.76 / ft

Flexaust
Flex-Lok® 550 Fume Duct Hose

Single-ply silver silicone coated fiberglass fabric hose, mechanically crimped in a continuous process.
Specifications for Variant SKU: 4-Flex-Lok-550-25 Flexaust | 25 |
Brand: Flex-Lok
Series: Flex-Lok 550
Hose Color(s): Grey
Internal Diameter: 4in
Tubing Construction: Silicone Coated Fiberglass
Special Properties: Outer Helix Protection
Flex-Lok® Metal Duct Hose

Flex-Lok® 550 Fume Duct Hose

Single-ply silver silicone coated fiberglass fabric hose, mechanically crimped in a continuous process.

1

What is this hose used for?
  • Automotive
  • Brick Kilns
  • Cold Air Supply
  • Diesel, Engine, Garage & Vehicle Exhaust Systems
  • Foundries
  • Heater
  • High Temperature
  • Jet Fuel Vapor Venting
  • Pollution Control
  • Rocket Support
  • Welding Fume Extraction
2

What are the key specifications?
Tube

Single-ply silver silicone coated fiberglass fabric

Reinforcement

Coated steel wire

Temperature Range

-65°F to 550°F

3

What are the main product features?
  • Fabric is locked around a coated steel wire by a metal strip formed into a clip.
  • Metal strip acts as a wearstrip and offers outstanding external abrasion resistance.
  • Extremely flexible & compressible.
  • Flame retardant to UL 94V-0.
  • Ideal for medium temperature heater & floor exhaust applications.
  • Available with a non-marking thermoplastic rubber clip cover to protect the helix & the equipment that is attached to the hose.
  • Negative pressure fan system with ambient air inlet recommended to maximize effectiveness and life of duct.
4

Which sizes are available?
25 ft Reel Inside Diameter Centerline Bend Radius (in.) Compression Ratio Negative Pressure (in. Hg) Working Pressure (PSI) Weight — 25 ft Reel
4-Flex-Lok-550-25 4" 3" 5:1 9 10 19.5 lbs
5-Flex-Lok-550-25 5" 3.5" 8:1 7 8 19.25 lbs
6-Flex-Lok-550-25 6" 4.5" 8:1 6 7 17.5 lbs
7-Flex-Lok-550-25 7" 5" 8:1 5.5 6.5 24 lbs
8-Flex-Lok-550-25 8" 5.5" 8:1 5 6 30.75 lbs
9-Flex-Lok-550-25 9" 6.3" 8:1 4.5 5.5 33.75 lbs
10-Flex-Lok-550-25 10" 7" 8:1 4 5 36.75 lbs
12-Flex-Lok-550-25 12" 8.5" 8:1 2.5 4 40 lbs
14-Flex-Lok-550-25 14" — — — — —
16-Flex-Lok-550-25 16" — — — — —
18-Flex-Lok-550-25 18" — — — — —
i
Technical data based on 2 ft. straight lengths of hose at 72°F.

Flexaust

Flexaust has manufactured durable, long lasting, flexible hose and ducting solutions for industrial and commercial applications for 80 years. Our hose products are used in applications involving air, dust, fume and lightweight materials. Flexaust uses an array of materials including thermoplastic rubber, polyurethane, PVC, neoprene, polyester, and vinyl fabric and polyethylene to manufacture a broad range of products.

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