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If after stopping, a small amount of concrete come out, it means that the line is lubricated. However, since it is rare that the air in the line can trigger a hose whip, workers tend to downplay the risk and not stay away from the end of the hose when restarting pumping. Big mistake and again so easily preventable! When does hose whipping happen?
‘Hose whip’ describes uncontrolled and rapid motion of the flexible rubber hose on the end of a concrete placing boom or other concrete delivery line. Workers can be struck directly by the whipping hose itself, knocked over and hit the ground or an object, or hit by ejected material.
“Whip Hose” should remain permanently connected to the tool and should be the same diameter as the supply line hose. Hire market, construction, road construction, heavy engineering Also Available: With Sure lock Couplings. Can be made to suit higher and
· The energy contained within a pressure hose, in case of disconnection from the fitting, can be very dangerous to anyone or anything in its vicinity. The Stopflex retention system was designed to arrest the trajectory of the flexible hose, thus avoiding that the energy contained inside may trigger a frightening “whip effect”.
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The release of this air can cause the hose to suddenly whip. Here, that cost one worker his life. Two workers had just completed a porch using concrete supplied by a pumper truck. The truck’s pump was stopped and its boom was relocated to pour a walkway. One of the workers held the end-hose over the concrete …
· In regards to hose restraints IHSA high recommends the use of the Stopflex system! In some jurisdictions hose whip restraints are required by law where there is risk to personnel from whipping hoses." IHSA . EN 856 EN 857 SAE J517
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· Hose Whip Restraint Safety restraining system for pressure hoses The Hose Whip Restraint System is designed to prevent whipping of a pressurized hose in the event of the hose separating from its fitting. This system provides an additional level of safety and helps prevent
Alibaba.com offers 165 whip hose products. About 14% of these are rubber hoses, 7% are pipe fittings, and 7% are paintball accessories. A wide variety of whip hose options are available to you, such as carbon steel, stainless steel, and pvc.
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· Hose General Hydraulic Hose PTFE Hose Duraflex Hydraulic Hose Coil Non-Conductive Hose Meets SAE J517 for less than 50 micro-amps leakage under Not for use as a whip hose on hand-operated grease guns. Bend restrictions are available only for permanent fittings.
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The purpose of this alert is to highlight the hazards and risks to workers caused by hose whip on concrete pumps. ''Hose whip'' describes the uncontrolled and rapid motion of the flexible rubber hose on the end of a concrete placement boom or other concrete delivery line. The following information is provided to assist employers, self-employed people, principal contractors, clients and project
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· The vast majority of the time, concrete accelerat-ing in front of the air pocket results in a harmless escape; the concrete squirts out rapidly, there’s a small “puff” as the air escapes, and the concrete behind the air resumes owing normally. Perhaps the hose gives a small jerk and there’s some splat-tering by the air/concrete mixture.
· SAE HYDRAULIC HOSE SPECIFICATIONS (SAE J517) General Hydraulic hose has a finite service life, which can be reduced by many factors including: Flexing the hose to less than the minimum specified bend radius. Twisting, pulling, kinking, crushing or abrasion. Operation outside of the specified temperature range.
· Reinforced rubber loop hose connecting the steel pipeline, elbow, swan neck and concrete swivel. 1800 elbow which conveys the concrete from the steel pipeline running up the mast to the loop hose that connects to the swan neck and concrete swivel. Swan neck and concrete swivel allows movement of the auger during the pumping process.
· 1 .powertrackhose.com 1-800-365-1577 [email protected] Premium Fabric Reinforced Concrete Hose Powertrack''s Premium Fabric Reinforced Concrete Hose is designed for concrete pumping. It is constructed with an abrasion-resistant rubber lining and high-tensile textile
2 · Example of hose-whipping on a concrete pump
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· CONCRETE PUMP- HOSE WHIP ‘Hose whip’ is a term referring to the rapid, uncontrolled movement of the rubber hose attached to the end of a concrete placement boom or concrete delivery line. Understanding why hose whip occurs and measures to prevent injury will ensure a safer workplace and may even save a life.
· CONSTRUCTION: This hose consists of an inner tube of oil-resistant synthetic rubber, single wire braid reinforcement, and an oil- and weather-resistant synthetic rubber cover.
· The American Concrete Pumping Association (ACPA) is pleased to announce the completion of the NEW Hose Whipping Safety Bulletin. Please review and share copies of the PDF below with your pump operators and your customers. Special care must be taken to prevent hose whipping injuries when operating a concrete pump with a boom.
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The maximum working pressure of a hose assembly comprising SAE J517 hose and hose connectors per SAE J516, SAE J518, SAE J1453, etc., shall not exceed the lower of the respective SAE maximum working pressure values. When using SAE J517 hose for marine applications, see SAE J1475, SAE J1942 and SAE J1942-1.
Hose designed specifically to carry highly acidic, alkaloid or otherwise corrosive liquids are par for the course in industrial and manufacturing environments. At Salem-Republic Rubber, we manufacture Chemical Resistant Hose in almost limitless variations. Our engineers and sales staff begin by helping assess of chemicals your hose will