COBRA BLACK OPS
The BEST Double Jacket 4-layer NFPA Rated Attack Hose
Superior kink, heat, and puncture resistance for low-pressure, high-volume nozzle applications.
- Double Jacket 4-layer NFPA Rated Attack Hose
- Exclusive black hard coat Liberator Coupling with NFPA color reflective arrows
- Exclusive Anti-Whip Technology
- Exclusive PU-based black emulplast Tri-Delta color coating with 340% increase in abrasion resistance
The emulplast polyseel color impregnations are a proprietary process applied to the outer jacket by mechanical means and cured into the coat by thermal means. This includes a polyurethane coating that increases abrasion resistance by 6 times compared to standard impregnation. It greatly increases heat and flame resistance, reduces water pickup, adds superb resistance to petrochemicals, and displays extreme resistance to bacterial and mildew growth.
COLOR OPTIONS
The jacket shall be evenly and firmly woven, free from Unsightly defects, dirt, knots, lumps, irregularities or twist that might affect the serviceability of the finished product. Each jacket shall be seamless and shall have polyester filler yarns woven around the hose throughout its length, with the warp ends interwoven with the warp yarn covering the filler yarns. Warp ends of the outer jacket shall be ring spun-polyester developed, designed and processed for the fire hose jacket warp yarns. The use of nylon, polyamide, or rayon yarns used in the warp or filler direction is not allowed. The use of any warp yarns of filament or entangled construction is expressly forbidden. Filler yarns of the outer jackets shall be of the highest denier filament polyester developed and allowed, designed and processed for the fire hose jacket filler yarns. These filament polyester yarns shall be free from defects that are unsightly or may affect the serviceability of the finished hose. The ring spun polyester warp ends must completely cover and protect the filament polyester filler yarns. The jacket shall be constructed with a high pick count “Anti-Whip” design technology exclusive to Matex Hose. Exclusive solution dyed black yarn creating proprietary stripes shall be woven into the jacket to correctly identify diameters.
The adhesion of the lining to the proprietary reinforcement shall be such that the rate of separation of a 11/2” strip of lining, transversely cut, shall not be greater than 1” per minute under a weight of 18 lbs. No exceptions, Must accompany a lifetime warranty against delamination.
The proprietary circularly woven reinforcement shall be completely protected by a through the weave extruded PVC/Nitrile Rubber (30%/70%), forming a single homogeneous construction without the use of glues or adhesives of any type. Materials used in construction of the hose shall be new, unused and not less than the quality conforming to modern engineering and manufacturing practices. Materials shall be free of defects and suitable for the service intended.
Hydrostatic tests shall be conducted on the hose equipped with the couplings to be delivered in accordance with NFPA 1961. Each length of hose is to be subjected to a hydrostatic proof test pressure of 800 psi for at least 15 seconds and not more than 1 minute. Higher test pressures, which may weaken the hose, are expressly forbidden..
The hose shall be capable of performing in sub-zero conditions. A 3-foot section of hose shall be exposed to a temperature of -54°+ / – 2°C (-65°+ / -3° F) for a period of hrs. At the end of the exposure period, and white maintained at the -55°C exposure temperature, the hose shall be rapidly bent 180° double on itself, first one way and then the other. There shall be no cracking or breaking of the jacket or liner. Leakage shall be cause for rejection.
A 3-foot sample of hose chosen at random shall withstand without failure a hydrostatic pressure of 1500 psi while lying straight or curved on a 27” radius for all diameters 21/2” or less. 4” and 5” shall have a minimum burst of 900 psi. Retention of the coupling to the hose shall equal or exceed the burst pressure.
The hose shall not warp more than 20” from a straight line drawn from center to center of the fittings at the ends of the hose, and the hose shall not rise from the table.
A full-length shall withstand, while kinked, without failure, a hydrostatic pressure of 500 psi.
The expansion in circumference of the hose between 10 and 800 psi shall not exceed 8%.
WARRANTY INFORMATION
The fire hose furnished under the terms of this proposal has a potential service life of ten years, barring mistreatment or accidental damage that would render the hose ‘unfit for service.’ MaTex warrants the hose to be free from defects in materials and workmanship for a period of ten years. This warranty shall provide for the repair or replacement of hose and couplings proven to have failed due to faulty material or workmanship.
The fire hose provided under this proposal is constructed to maintain a permanent bond between the inner tube and reinforcement layer. MaTex warrants the hose against tube delamination for the lifetime of the product. This lifetime warranty covers the repair or replacement of hose found to have failed due to delamination caused by defective materials or workmanship.
