Lightweight rubber expansion joints available in style 156, utype, no arch, for vacuum only. Control units, when installed as tie rods, are designed to restrain the expansion joints axially while restricting their other movements angular, lateral. Thus is due to thermal and mechanical vibration or movement. Temporary 20 inch bypass line with expansion joints failed due to its unsatisfactory design. Rubber expansion joints are flexible connectors for the construction of pipe systems. By defining the exact relationship, holz rubber, with the 320 expansion joint, can now provide precise guidelines for pressurevacuum capability at various temperatures. Proco series 230 rubber joints expansion joint supplier. Universal expansion joints with full faced rubber flange. Expansion joints custom and standard expansion joints.
By combining our technical knowhow, extensive industry experience, manufacturing capabilities, and worldclass customer service, we work together with our customers to meet their needs and provide innovative solutions. Rubber expansion joint to assimilate axial movements or axial lateral. Rubber expansion joints compensators are used as flexible connectors within pipe systems. Absorbing axial, lateral and angular movement as well as combinations of all three movement types. Ms2 the ms1 is the most widely used rubber expansion joint and is very reasonably priced. To the first category belong the sf, df,umf and mf series, while the second category consists of the spool type joints. The following table provides guidance regarding maximum bridge superstructure length beyond which the use of either intermediate expansion joints or modular. If the metal reinforcement of an expansion joint is visible through the cover, the expansion joint should be replaced as soon as possible. Rubber expansion joints protect installations against the effects of expansion, compression, movement and bending of the system. Reflex rubber expansion joint safety data sheet according to federal register vol. Firstly is the body of the rubber joint which is the bellow. Rubber expansion joints tend to dampen transmission of sound because of the steel rubber interface of joints and mating flanges. Epdmepdm ee rubber expansion joints are recommended for hot water applications with maximum operating temperatures not exceeding 300 degrees f.
Common signs of rubber expansion joint deterioration. The addition of the rubber properties and various type of reinforcement provides a flexible pipe joint that is easy to install, efficient and a long service life. Expansion joints technical manual fluid sealing products. Lateral deflection is the relative displacement of the two ends of an expansion joint perpendicular to its longitudinal axis. Rubber expansion joints uip rubber expansion joints provide timetested ways to accommodate pressure loads, relieve movement stresses, reduce noise, isolate vibration, compensate for misalignment after plants go on stream, and prolong the life of motive equipment. Pipeline planning mounting of expansion joints, sliding points and fixed points expansion joint to receive axial movements along the pipeline axis. Style 233l rubber expansion joints are designed for piping systems that experience large lateral offsets due to settlement. B6 guardian 306 ezflo garlock guardian 306 ezflo spooltype expansion joints feature an fep lining that is fused to the body of the expansion joint. Single widearch product and work horse for industrial applications available in open arch and filled arch. Holz rubber company is the best choice for non metallic expansion joints.
Design pourable sealants dms6310 class 1twocomponent polyurethane, rapid curing, selfleveling none approved class 2twocomponent synthetic polymer, self leveling class 3hotpoured rubber asphalt joint seal low movement class 4lowmodulus silicone, nonsag. Where rubber expansion joints are used on pumps, these should prevent the transmission of forces, expansion joint are absorbed by the joint tie rods. Style 156 body is of duck and rubber without metal reinforcing. Do keep expansion joints and rubber fittings on pallet until ready to install. In addition to meeting the requirements within a304. Angular rotation is the displacement of the longitudinal axis of the expansion joint from its initial straight line position into a circular arc. Never operate rubber expansion joint or pipe above specified pressure and temperature rating. No one can offer greater security or variety in meeting your rubber bellows needs. For a download of catalogue pages or product information as pdf, please click below. Mightysphere high temperature rubber expansion joint. When this movement is not absorbed by the piping system itself, an expansion joint is the perfect solution. Metal reinforcement wire or solid steel rings embedded in the carcass are frequently used as strengthening members of the joint. Additionally we supply different types of rubber expansion joints and other products. Movement is always experienced in piping systems due to varying ambient temperatures, differences in temperature of materials handled, and differences in composition.
Universal rubber expansion joints should utilize a one piece rubber construction for high performance. Based on the german expression elastische rohrverbinder the type brand erv is being used. To estimate expansion, multiply length in inches x number of ghjuhhv ri dqwlflsdwhg whpshudwxuh gl nhuhqwldo use the resulting anticipated movement to determine correct thickness of the control joint and proper spacing for placement of the joint. The movements and benefits are like those of style expansion joints. Variations of construction tapered joints used to connect pipelines of unequal diameter. With over 65 years of being in the metal hose and expansion joint businessdating back. The production of rubber bellows for expansion joints belongs to the contitech business unit air spring systems as both are similar rubber bellow products with. A vacuum support ring should be used on the suction side if possible.
For instance we supply check valves, ptfe pipe expansion joints, ducting. The rubber expansion joints can be divided into two main. External conditions include, but are not limited to ground settlement, wind and. Rubber expansion joints unisource manufacturing inc. If designed, manufactured, applied and installed properly, rubber expansion joints can serve to. Style 271 rubber expansion joints are designed for piping systems to absorb pipe movements, relieve stress, reduce system noisevibration, compensate for misalignmentoffset and to protect rotating mechanical equipment against startup surge forces. Expansion joints holz rubber industrial piping system. Built from durable synthetic or natural elastomers, flextech rubber expansion joints are resistant to corrosion and erosion. Rubber expansion joints rubber expansion joints are inexpensive products that provide critical protection of piping and mechanical equipment in a multitude of engineered applications. The fixed points receive the stresses from the active bellows crosssection of the expansion joint in the event of. Install the retaining rings one set of split steel backup retaining rings is used for each flange of the expansion joint, to insure a tight, even seal and. Spherical rubber expansion joints installation instructions are provided by the manufacturer and are wire tagged to the expansion joint.
Minimal facetoface dimensions in rubber expansion joints offer untold economies compared with costly expansion bends or loops. Erv expansion joints from elaflex hiby are moulded single sphere type rubber bellows with swiveling metal flanges. Generally, rubber expansion joints are reinforce with polyester fabric plies along with steel hoops for vacuum rating. Planning, fitting and maintenance instructions for rubber expansion joints. How to determine if a rubber expansion joint is damaged. If this fact is ignored,premature failure of the expansion joint is afore gone conclusion. Basic standards for rubber expansion joints are defined in the fluid sealing association handbook on rubber expansion joints, but the very nature of rubber precludes much definition of performance. The style 271 rubber expansion joint is a single super wide flowing arch design. Rubber expansion joints with teflon inner tubes are not recommended for vacuum service.
Flextech rubber expansion joints help to reduce stress in piping systems that is the result of mechanical or thermal movements. They relieve system strain by reducing vibration and noise and compensate static or dynamic movements caused by thermal change, load stress, pumping surges or construction settlement. Relieves piping stress the purpose of thorburns rubber piping expansion joints is to relieve strain and stress in a piping system caused by thermal changes, misalignment, seismic activity. When using flexicraft rubber expansion joints, you can be assured they were designed and built to last.
Rubber expansion joint to assimilate axial movements or axiallateral. Construction is of fabric and rubber, reinforced with metal rings or wire. Summary of comflex expansion joints 3 bellows construction 4 rubber qualities, reinforcing materials and max. Greater movements the unique arch design of the 320 expansion jointprovides greater. A chlorobutyl cover and blue protective coating add resistance to environmental effects. Holz rubber custom molded services expansion joints. Options include ptfelined, concentric reducing, eccentric reducing, filled arch, lightweight, and offset configurations. Our product range comprises hoses, fittings, couplings, nozzles and hose reel solutions for the transfer of dangerous goods and sensitive fluids refuelling equipment as well as rubber expansion joints pipe construction equipment.
An elastomer or rubber manufactured pipe expansion joint is the most flexible connector for a pipe expansion joint application. The universal rubber expansion joint absorbs the heatcold expansion of a pipe section in all. It is easily compressed and has a recovery of 95% or more of the original thickness and a. Expansion joint specialist and the state bridge design engineer for recommendations and approval. Style 271 rubber expansion joints are designed for piping systems to absorb pipe movements, relieve stress, reduce system noisevibration. Typical rubber expansion joint applications industrial applications piping installations are one of the most important locations for una. External conditions include, but are not limited to ground settlement, wind and shock loading, and seismic events. Rubber expansion joints are readily available in sizes from 112 inch to 36 inch. Rubber expansion joints are particularly useful for service with aggressive chemicals, and for abrasion resistance. May be manufactured as concentric or eccentric, depending upon pipe alignment.
Review the rubber elastomer expansion joint models below to choose the optimal design for your application, or contact our highly trained staff for assistance. The relative cost of the pipe itself may be less or no more than a rubber expansion joints. The cover has been formulated with an ozone and temperature resistant compound which prevents the expansion joint from cracking. Technics rubber expansion joints ditec product catalogue as. For higherpressure ratings, kevlar reinforcing might be indicated. How to determine if a rubber expansion joint is damaged and. Thorburns rubber expansion joints are used to neutralize stress and solve defined pipe motion problems. Handcrafted rubber expansion joints available in single and multiplearch designs are custombuilt to fit your application requirements.
Control units, when installed as tie rods, are designed to restrain the expansion joints axially while restricting their other movements angular, lateral and torsional during normal operation. The relative cost of the pipe itself may be less or no more than a rubber. Expansion joints absorb this movement and mitigate the risk of. Rubber expansion joints for pipe sizes 2 or smaller will have threaded ends and connectors for pipe sizes 212 and larger will have floating steel flanges. The rubber expansion joints can be divided into two main categories namely the moulded expansion joints and the hand built ones. Rubber expansion joints 82016 ms1 20615 commerce blvd. Senior flexonics standard rubber expansion joints feature.
Due to their flexible makeup, they are able to provide stress relief in a pipe system. The expansion joint catalogue hecht rubber corporation. Fabric and rubber expansion joints as well as steel expansion joints are used in nearly all industries. Garlock rubber expansion joints safe reliable durable leaders in sealing integrity 3 garlock rubber expansion joints dependable absorption of movements and vibrations in piping system an expansion joint is a specially engineered product inserted in a piping system in order to protect it. Thorburn rubber expansion joints are custom designed by engineers and fabricated by skilled craftsmen following rigid stepbystep quality control standards. Only smooth mating flanges should be used for expansion joints with solid flanges. In all instances, the use of intermediate expansion joints should be avoided wherever possible. This product is designed for the chemical processing and. It is easily compressed and has a recovery of 95% or more of the original thickness and a density of not less than 30 lb. Macoga rubber expansion joints are designed following the guidelines of the fsa fluid sealing association nonmetallic expansion joints technical handbook, astm f1123 87 standard specification for nonmetallic expansion joints and always complying with the european pressure equipment directive 201468ue for the specified operating conditions. Do install expansion joints at recommended length, even if arch is slightly compressed.
Ayvaz rubber expansion joints provide excellent compensating features by their highly rated rubber bellows which is consisted of epdm and steel wire. Proco series 230 rubber expansion joints are designed for piping systems to absorb pipe movements, relieve stress, reduce system noisevibration, compensate for misalignmentoffset and to protect rotating mechanical equipment against startup surge forces. Thickwall rubber expansion joints, compared with their metallic counterparts, reduce considerably the transmission of sound. Rubber expansion joints provide superior movement capability in axial compression.
The plain bearings serve only for correct initiation of movement in the expansion joint. Never cut or modify expansion joint or rubber fitting. Sponge rubber expansion joint is produced to a uniform thickness and density from graycolored, topquality, blown sponge rubber. Universal rubber expansion joints will also absorb all directional movements that may occur from external conditions. Rubber expansion joint the mightysphere is the joint in the metrasphere family that can handle higher temperature and pressures. The cover has been formulated with an ozone and temperature resistant compound which prevents the expansion joint. These higher ratings are a result of enhancements we have made to the materials in the mightysphere. Ayvaz rubber expansion joints provide excellent compensating features by their highly rated rubber bellows which is consisted of special synthetic rubber, steel. Rubber bellows with fl ange or threaded connection. These units can also be supplied with offset features. Unaflex rubber expansion joints provide relief from stresses caused by thermal expansion and contraction in pipelines. Mating flanges with and without projection according to en 10921.
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