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� Hose information is subject to change. For full details, visit our website or contact Customer Service. Properties of Saturated Steam CHEMICAL HOSE WARNING (Abridged from Handbook of Chemistry and Physics � 39th Edition.) Do not use chemical hose at pressures or temperatures above Gauge *Temperature of Gauge *Temperature of those recommended by HBD/Thermoid. All operators must be Pressure Saturated Steam Pressure Saturated Steam thoroughly trained in the care and use of these hoses, and must, (psi) (�F) (psi) (�F) at all times, wear protective clothing and other appropriate safety equipment. A hose or system failure could cause the release of 10 239 155 368 corrosive, flammable or poisonous material. Never allow chemicals 25 267 160 371 to drip on the exterior of the hose or allow the hose to lie in a pool 30 274 165 373 35 281 170 375 of chemicals since the hose cover may not have the same 40 287 175 377 chemical resistance as the inner tube. If kinking or crushing occurs, immediately subject the assembly to the Hydrostatic Pressure 45 292 180 380 Test and Examination. If the Hydrostatic Test is not an option, 50 298 185 382 immediately replace the assembly. If the reduction of the I.D. is 55 303 190 384 greater than 20%, replace the assembly. 60 307 195 386 65 312 200 388 Extreme care must be taken when flushing out a chemical hose with water or removing clogs. Some chemicals, such as 70 316 205 390 concentrated acids may react with the water. Spattering may 75 320 210 392 occur which could result in serious injury to the eyes or other 80 324 215 394 areas of the body. When flushing the hose, care must be taken 85 328 220 395 so that all chemicals or flushing fluids are disposed of according 90 331 225 397 to EPA recommended guidelines. 95 335 230 399 100 338 235 401 105 341 240 403 STATIC ELECTRICITY WARNING 110 344 245 404 Serious bodily injury, death, property damage or other loss, 115 347 250 406 can result from the use of hose in hazardous or explosive 120 350 255 408 atmospheres due to the buildup of static electricity from the 125 353 260 409 movement of conveyed materials through the hose as well as 130 356 265 411 movement or vibration of the hose against the other surfaces. 135 358 270 413 Hose, as well as the entire system or application, used in such 140 361 275 414 atmospheres must be properly grounded or bonded. For this reason, HBD/Thermoid recommends only hose with static wire 145 363 be used. 150 366 Static electricity, as a source of ignition for flammable vapors, * Based on an atmosphere pressure of 14.7 psi. gases and dusts, is a hazard common to a wide variety of industries. A static spark can occur when an electrical charge accumulates on the surfaces of two materials that have been brought together and then separated (between two solids, between When making a selection for this type of application, keep safety in a solid and a liquid, or between two immiscible liquids, i.e., mind. Be sure to select a hose identified as steam hose. There incapable of mixing). One surface becomes charged positively and should be a permanent form of branding on the hose and not just the other surface becomes charged negatively. If the materials are on the package. The manufacturer's name, hose type and operating not bonded or grounded, they will eventually accumulate a pressure should be readable. If not, don't use the hose. Also, be sufficient electrical charge capable of producing a static spark that sure to identify the type of service the steam hose will be required could ignite flammable vapors, gases and dusts. Some common to accomplish. What will the temperature of the steam be? Will the processes capable of producing a static ignition are as follows: steam be superheated (dry) or saturated (wet)? What environment will this hose be used in? Be sure that you can recognize that � The flow of liquids (for example, petroleum or mixtures of spillage or accumulations of corrosive materials can have a petroleum and water as well as any flammable fluids) through detrimental effect on the hose cover. hose, pipes or fine filters. Make sure the hose is installed properly by using hose couplings � The settling of a solid or an immiscible liquid through a liquid designed for steam service. Check the tightness with each use. (e.g. rust or water through petroleum). Installing and using a shut-off valve between the steam source and � The ejection of particles or droplets from a nozzle (e.g. water the hose will maximize service life and operator safety. washing operations or the initial stages of filling a tank with oil). Provide operators with adequate clothing which would include � The vigorous rubbing together and subsequent separation of rubber boots, gloves, eye protection and full length protective certain synthetic polymers (e.g. the sliding of a polypropylene clothing. Do not allow the hose to remain under pressure when rope through PVC gloved hands). not in service. Failure to depressurize and drain the hose when not GENERALINFORMATIONGENERALINFORMATION in service can reduce the usable life of the hose. Continue to Preventing and/or dissipating static electricity as an ignition source monitor hose to ensure it has not deteriorated to the point to where can be accomplished through bonding, grounding or possibly it can no longer provide safe service. Most, if not all steam hoses selecting a different non-static conducting material. Bonding is the are date-coded by the manufacturer. It is recommended that process of connecting two or more conductive objects together by assemblies be tagged with a date that it went into service. This means of a conductor. Grounding, or earthing, is the process of information will be helpful in identifying those hoses that should be connecting one or more conductive objects to the ground.** replaced due to age. Certain Thermoid hose incorporates a static wire, which if properly Couplings: Hose couplings are extremely important when steam is coupled can be used to ground the hose assembly. Other parts of being handled. High temperatures and pressures inside steam hose the application or equipment may have to be grounded as well. Hose act like a pressure cooker and cause the inside and outside diame- that does not contain a ground wire will nevertheless have to be ters to shrink during use. Couplings must be specifically designed grounded if used in an explosive or hazardous atmosphere. In all to combat this effect. Only couplings designed for steam hose applications, it is the user's responsibility to ensure the hose should be used. assembly and equipment it is used on, is properly grounded to earth. ** Excerpts from Process Safety Handling Hazardous Chemicals, 1/97: Standards & Guidelines � Occupational Safety and Health Administration. 9
Goodyear Rubber Products
