Thorburn Flex Inc

1 Non-Metallic Hoses, Couplings & Assemblies forFluid Transfer, Material Handling & Ducting Systems6th Edition173, Oneida, Pointe-Claire, Qu bec, Canada H9R 1A9 Tel: (514) 695-8710, 1-800-363-6613 Fax: (514) 695-8716 All you'll ever need!EntirelyRevisedThorburn flex IncFlexible Piping SpecialistThorburn flex IncFlexible Piping Specialist Thorburn is an innovative manufacturer of specializedengineered flexible piping systems ( custom hoseassemblies and expansion joints). Since 1960, Thorburn scorporate mission evolution and business philosophy havebeen customer driven and targeted to select nicheapplications where Thorburn can achieve clear positions ofsustainable technological and market-share s CNC lathes have fused machine andcontrol technology into unparalleled hose couplingmanufacturing performanceSIZES: 1/8" to 36" : Full vacuum to 46,000 psiLENGTHS.

2 Up to 1,000 ftThorburn s well-trained sales staff of dedicated professionalsis eager to provide application or engineering assistance toassure safe, trouble-free s CAD/CAM technology hasdramatically increased productivity andsimplified the introduction of conceptualideas into finished you cancount on againand again!Petroleum Chemical Air, water, steam Material handling DuctingThorburn s wide range of standard flexiblepiping products will allow you to choose theperfect hose, coupling or assembly to meet yourrequirements safely and on flex IncFlexible Piping Specialist-i-General HoseInformation GENERAL HOSE INFORMATIONHose SelectionSelecting the proper hose for an application is criticalto ensure safety of people and property, as well as longhose life.

3 Therefore, it is important to understand thefactors involved. These factors are: application, pressureand suction, environment, compatibility with materialconveyed, temperature, size, flexibility and bend radius,and first step in properly selecting a hose is to identifythe application and material to be transferred. Then con-sider the hoses available for that type of service. Thorburnhoses are intended for specific applications and Never use a hose to transfer material itis not specifically meant to transfer. Doing so coulddeteriorate the hose and result in leaking, hosebursting, or end blow-offs.

4 This could lead to seriouspersonal injury or death. Always transfer material ina hose that is designed specifically to transfer special application consideration especially ingases, petroleum-based liquids, volatile solvents, and drymaterial transfer applications is whether the velocity ofthe material being transferred will cause static in turn can cause an to Rubber Manufacturers Association(RMA) Hose Handbook IP-2 1987:Electrical engineers differ in opinion on the ef-fects of static electricity and the means of dissi-pating it. In handling gasoline and other petro-leum-based liquids, recognized national associa-tions and companies have conflicting opinions onthe need for conductive a consensus is reached among all asso-ciations, laboratories and users and a standardpractice is established, it is essential that the userdetermine the need for static bonded hose basedon (a) the intended use for the hose, (b)instructionsfrom the company s safety division, (c) the in-surer, and (d)

5 The laws of the states in which thehose will be some instances where insulating componentsin the hose construction negate the function ofthe static wire, the rubber in the hose is specifi-cally compounded to be conductive to dissipatethe static electricity. An example of this would besand blast of whether a wire of conductivecomponent is used to dissipate any static charge,there must be a continuous conductive path throughthe entire length of the hose that is in contact withan electrical ground. Thes conductor in the hosemust be able to withstand the stresses imposedby flexing and the normal service conditions of , be aware that many industries havegoverning agencies that issue mandatory or sug-gested guidelines for the use of hose in & SuctionThe selected hose and coupling must be able tocontinually withstand the maximum pressure that will begenerated in the Consider both working pressure andpressure surges when determining maximum pressure.

6 Failure to select a hose that meets boththese requirements could lead to end blow-offs, hoseleakage and hose bursting. The result could be seriousinjury or death. The Thorburn hose you choose mustmeet or exceed the required working pressure andmust have a safety factor to allow for surge may be reassuring to know that every length ofThorburn chemical transfer hose is pressure tested to1-1/2 times the working pressure before it is packaged andshipped. Equally reassuring is the fact that Thorburnchemical hoses have a 4:1 safety factor.

7 This means theburst pressure is a minimum of four times greater than theworking pressure for all Thorburn hoses is listed inthis in suction applications, suction (or vacuum)considerations are as critical to hose life as pressureconsiderations. Hoses in these applications arevulnerable to crushing forces because the atmosphericpressure outside the hose is greater than the pressureinside the hose. Hose not having the proper suctionrating for your application may collapse and resultin equipment suction hoses have helical wire reinforce-ment and are rated for full vacuum.

8 Inches of mercury is the standard measurement for vacuum. Full vacuum isequal to inches of HoseInformationINNER TUBEHELICAL COILREINFORCEMENTOUTER COVERE nvironment & CompatibilityEnvironment refers to both the external environmentand the internal environment in which the hose will beworking. Different components of the hose will be af-fected by these two types of environments. Most hoses consist of three components: an innertube, a reinforcement, and an outer are the basic ingredients of all rubbercompounds. However, be aware that when specifyingtube and cover compounds, significant application differ-ences may exist between two compounds listed as havingthe same basic differences occur because compounds containmany materials in addition to elastomers.

9 Some of thesematerials include processing aids, carbon black, vulcani-zation agents, accelerators, age resistors and other ingre-dients. Before making assumptions about the suitability ofa particular hose for a given application, always read the Applications information for each specific hose listed inthis catalogue and consult Thorburn technical sales de-partment on media first hose component the inner tube conveysthe material being transferred. The tube must be compat-ible with these materials. This is the hose s internalenvironment. Whenever you specify a Thorburn hose,make sure elastomer compounds are compatible Never transfer material in an inner tubethat is not compatible with that material.

10 Likewise,never use hose at temperatures, pressures or chemicalconcentrations above those recommended byThorburn. Doing so will weaken or deteriorate thehose, leading to leakage, hose bursting, or end blow-offs. Personal injury or death will next hose component, the reinforcement, isthe strength member of the hose. Reinforcement usu-ally consists of textile, thermoplastic, carbon steel orstainless steel spirals, braids and coils. The helical coilis used in all hard-wall hoses and is required in vacuumand suction applications. The coil is necessary to helpthe hose withstand atmospheric pressure that is greaterthan the internal pressure of the hose to prevent thehose from collapsing.