NOTE: At operating pressures over 5,000 psi and above, employees are required to wear protective suits made of Kevlar. When tube lancing or "shotgunning", boots provided with steel toecaps and metatarsal protection will be worn. When cleaning equipment which could possible be contaminated with hazardous chemicals, appropriate additional protection specified by the project management/safety will be worn by the operator as well as other employees who may be affected. Metatarsal Guards – Designed to be worn with lace-type steel toe boots. Rubber steel-toed boots – Knee length with ribbed steel shanks and heavy tread soles for nonslip traction (ANSI Z41.1-1967 or equivalent). Gloves – Made of Neoprene, rubber and PVC with rough wet grip finish. Rain Suit – Made of nylon fabric coated with Neoprene on both sides. The following identifies at a minimum the personal protective equipment that will be issued to employees performing high-pressure water cleaning outside of the required hardhat and safety glasses with side shields:įace shields – Clear shield nine inches deep by fifteen and one-half inches wide by 0.60 thick (ANSI Z87.1-1979 or equivalent). These do NOT provide protection from the jet but do protect against hazards encountered while performing the work. Personnel performing high-pressure water cleaning that are exposed to water spray or reflected material will wear a raincoat, rubber pants, safety glasses, hardhat with face shield, rubber boots and gloves. Violators will be disciplined and subject to immediate termination. Horseplay with such equipment is strictly forbidden. These jets of water can easily puncture and tear the skin or penetrate deeper causing infection or serious internal damage. No portion of the body must ever be placed in front of the water jet. Therefore, extreme caution and strict compliance with procedures must be used to prevent the jet stream from striking the operator, other employees or delicate equipment. High-pressure water cleaning is normally performed using jet streams that can have a velocity greater than that of a 45-caliber bullet, and do as much damage. Lance: A rigid metal tube used to extend the nozzle from the end of a hose. Used in tube lancing and line moling water cleaning methods. Line moling: An operation using a self-propelled jet nozzle (mole) and a high-pressure hose to clean the inside of piping systems.ĭu mp valve: A device that immediately shuts down the high-pressure water stream if the operator loses control. High-pressure water cutting: The use of high-pressure water, with or without the addition of other liquids or solid particles, to penetrate into surfaces of a material for the purpose of cutting that material. The system includes pumps (pressure reducing devices) and the hoses, lances, nozzles, valves and safety devices as well as any heating elements or injection systems attached thereto. Solid particles or additional chemicals may also be introduced, but the exit in all cases will be a free stream. High-pressure water cleaning systems: Water delivery systems, which have nozzles or other openings whose function is to increase the speed of liquids. High-pressure water cleaning: The use of high-pressure water, with or without the addition of other liquids or solid particles, to remove unwanted matter from various surfaces. ◦ Provide safety controls at all work sites DEFINITIONS ◦ Maintain records of maintenance and training ◦ Provide contractor employees with certification training ◦ Ensure all equipment meets the requirements of this program ◦ Ensure areas are safe for passers by Contractors ◦ Allow only qualified employees to operate equipment ◦ Oversee all operations involving use of high pressure water ◦ Perform periodic inspections and audits Supervisors ◦ Provide safety training for all operators of HP Water systems ◦ Provide proper equipment and procedures This program outlines the minimum requirements that will be met by Company Name and contractors/subcontractors when performing high-pressure water cleaning (HPWC).
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