Reinforced Thermoplastic Pipe (RTP)

Reinforced Thermoplastic Pipe is one kind of high-pressured plastic compound tube, consisted of three layers, the outer layer and liner are a PE80 or PE100, the outer layer according to needs to be possible to choose the white color (on the ground against ultraviolet ray) or the black color (under ground), the intermediate layer is the enhanced tape, the reinforced material may be the polyester fiber or the aramid fiber and so on. The pipes use many kinds of connection forms such as enhancement inline coupling, swaging fitting, flanged joint to connect. The RTP pipe general application temperature for -42ºC~135ºC, the max operation pressure may reach 32MPa most greatly.Advantages of RTP pipe 1. AnticorrosionThe walls both inside and outside of the RTP pipe have the good anticorrosive property, thus made it suitable in many kinds of corrosive medium and each kind of corrosive environment. (Reference standard:TR-19 thermalplastic piping for transport of chemicals)2. High pressure resistanceThe RTP pipe has the high loading capacity. By choosing different enhancement material, the maximum service pressure may achieve 32MPa, and the bursting pressure may even reach as high as above 100MPa.  3. Heat resistance & thermal insulationThe RTP pipe's application temperature scope is - 42ºC~135ºC, may satisfy the temperature demands of the majority situations, and the thermal conductivity is only 0.48w/m*k, which is the 1/100 of steel pipe.4. High transportabilityThe inner wall of RTP pipe is very smooth, hard for scaling and wax precipitation, the flow resistance is low, high wear-resistance, delivery capacity lasting invariable, so the transported pipeline's maintenance cost is reduced.  (1)The material of RTP pipe's inner pipe is polyolefin, so the roughness equivalent  of inner wall may reach 0.05mm, but under ordinary circumstances steel pipe roughness equivalent  achieves 0.19mm, the used steel pipe  even reaches 0.60mm.(2)RTP delivery capacity surpasses the conventional pipeline 50%. 5. Abrasion performanceRTP outer and inner pipe's material and steel 70° tilt angle of wear test (mud jet velocity 14m/s)  Material   /mg mass loss/mg  /mm3 volume loss/mm3PE100    2021PE80     2223 steel   1081138iron  962123 polypropylene  163180PVC-U     3322246. High flexibilityRTP pipe toughness is extremely high, has the good impact resistance, and good ability of anti-ground vehicle load ability, anti-soil deposition, anti-earthquake and so on. Since the RTP pipe has good flexibility, usually carries on the nature compensation through the serpentine layout while installing, with no need of the thermal compensation installation, and thus saves the installation cost.7. Easy Construction (1) The RTP pipe may look like the electric cable in coil to set the construction, every day may lay down at least 3 kilometers;(2) The RTP pipe tensile strength is high, when pipe is lay down, the long time maximum puling force may amount to 5 tons, and the instantaneous maximum puling force may amount to 10 tons.8. Small quantity of jointsThe single length of RTP without fitting may amounts to 150-400 meters, therefore joints are very few to the pipeline, and the reliability is higher, the cost is saved.9. High cost performanceDemonstrated according to the German Weicon Company that compares with the carbon steel pipeline, the RTP pipe may save over 25% of investment totally.10. Safety and healthThe RTP pipes, non-toxicity, does not decompose, is the environment friendly green material. It conforms to the GB/T 17219-1998 transmission and distribution equipment of domestic potable water and the shielding material security evaluation criteria.11. long  service The RTP's working life can be designed according to customer requirements, and the max working pressure can reach 50 years. The contrast between RTP pipes and other tubingRTPRTP pipeSteel pipeStainless steel pipe,GRP pipe, composite metal plastic pipeAntiseptic treatmentNo deedNeedNo deedNo needAntiseptic effectEntirety anticorrosion,Pitting corrosion,S,CO2Entirety,but not good effect for anti S, CO2Entirety anticorrosionLife20Over 20 years10Within 10 years1212 years 2020 yearsScale formationhard for scalingScalingScalingScalingCapacity of fluid transportation   ,50%Smooth Inner wallRaising  50%,Non-smoothConvention ,Non-smoothConvention,Non-smoothConventionLeakageNo leakage in whole pipelineEasy leakingNo leakingEasy leakingQty of jointsFew More More More Delivery In coil  Straight StraightStraightInstallation equipment ,Light , a few of categories and quantities Heavy and more quantity,Heavy, a few of categories and more quantityInstallation efficiency,3kmLaying down at least 3km/ each day1Laying down  within 1km/ each day1Laying down  within 1km/ each day1Laying down  within 1km/ each dayInstallation in site,,1engineer, 2 technical workers, some auxiliary staffsProfessional installation pipeline teamProfessional installation pipeline teamNonmetallic technology  personnel and many auxiliary staffsMaintenance Maintenance freeMany times each yearSeldomMany times each yearSpecification Parameters    DN  Item    65mm2.5 in80mm3 in100mm4 in125mm5 in150mm6 in200mm8in250mm10in300mm12in Notes OD 90mm3.5 in105mm4 in125mm5 in155mm6 in180mm7 in250mm10 in310mm12 in365mm14.5 in()Max delivery length ( high way transportation)800m2625 ft600m1970 ft400m1310 ft250m820 ft180m590 ft17.5m57ft17.5m57ft17.5m57ftWorking pressure 2.6~14.5MPa375~2100psi2.2~12.5MPa320~1810psi1.7~10.0MPa245~1450psi1.4~8.0MPa200~1160psi1.1~6.8MPa160~980psi1.0~10.9MPa145~1580psi1.0~8.0MPa145~1160psi1.0~6.0MPa145~870psiRTPThe higher pressure RTP can be designed.Working temperature -41ºC ~ 85ºC   -41°F ~ 185°FRTPThe higher temperature RTP can be designedDesign parameters of RTP pipesBrief introduction of design scheme for RTP DNV,API Guiding techniques and works in accordance with International organization DNV, API standard and criterions.The reference standards and criterions are as follows:ISO/TS 18226-4.0MPa ISO/TS 18226 "Plastic pipes and fittings-Reinforced thermoplastics pipe systems for thesupply of gaseous fuels for pressures up to 4MPa(40bar) "API RP 15S API RP 15S "Qualification of spoolable reinforced plastic line pipe" Design and manufacturing standardQ/320000 CG 1036Q/320000 CG 1036 "Reinforced Thermoplastic Pipes for Oil and gas Industrial"SY/T6794  SY/T6794"Qualification of spoolable reinforced plastic line pipe" Working pressure rating confirmationRTP 10000 ,,RTP 20 50 .We through carry on 10000 hours hydraulic pressure test to the RTP pipe, establish the regressioncurve for the relationship between pressure and time, infers the RTP safety service pressure ratingin 20 years to 50 years. Design idea for customersAccording to the operating requirements of different user, we may design the RTP pipe with different dimensions and patterns, satisfies the plan of special installation requirements such as the high pressure, the high temperature, the anti-corrosion, the anti-leakage, the counterweight, then electrostatic prevention and so on.