Construction
Made from circularly woven 100% high tenacity synthetic yarn, completely protected and locked-in by a tough, highly resistant synthetic nitrile rubber and PVC blend extruded through the weave and forming a single homogenous construction without the use of glues or adhesives.
Lining Properties
The tensile strength of the lining and cover shall not be less than 1,750 PSI (12,000 kPa), with an ultimate elongation of liner and cover not less than 450%.
Accelerated Aging
Lining specimens subjected to an exposure of 158 ºF ± 3.6 ºF, for a duration of 96 hours shall be conditioned as per ASTM D 573, Standard Test Method for Rubber - Deterioration in an Air Oven. Then, the specimens shall be tested to ASTM D4112, Standard Test Methods for Vulcanized Rubber and Thermoplastic Elastomers- Tension, Method A. Upon evaluation, the tensile and elongation properties of the liner shall not be less than 75% of their initial values.
Abrasion Resistance
As stated in National Fire Protection Association (NFPA) 1961, Underwriters Laboratories (UL) 19 and Factory Mutual Approval Standard (FM) 2111, hose shall withstand 1 1/2 times the service test pressure without rupturing or breaking any thread in the jacket or reinforcement after 300 cycles of abrasion for a single jacketed hose. Hose assembly shall also not leak or burst after 3,000 cycles by an abrasion wheel.
