PSC Pipe

This standard covers the requirements of prestressed concrete pipes (including specials) with nominal internal diameter in the range of 200 mm to 2 500 mm (see Note under Table 1), in which permanent internal stresses are deliberately introduced by tensioned steel to the desired degree to counteract the stresses caused in pipe under service. Terminology For the purpose of this standard, the following definitions shall apply. 3.1 Prestressed Concrete Cylinder Pipe - A welded sheet steel cylinder with steel socket and spigot rings welded to its ends, lined with concrete suitably compacted and circumferentially prestressed to withstand internal pressure and external design loads and subsequently coated with cement mortar or concrete to protect the steel cylinder and prestressing wires. 3.2 Prestressed Concrete Non-Cylinder Pipe - A suitably compacted concrete I core longitudinally prestressed with pretensioned high tensile steel wire embedded in the concrete, circumferentially prestressed and coated with cement mortar or concrete to protect the circumferential prestressing wire, to withstand internal pressure and external design loads. 3.3 Specials - All items in the pipeline other than straight pipes of standard length, such as bends, air valves and scour valve tees, etc, are classified as specials. 3.4 Working Pressure - The maximum sustained internal pressure excluding surge to which each portion of the pipeline may be subjected when installed.

Our RCC pipes are manufactured using high-grade cement, quality aggregates, and reinforced steel, ensuring excellent load-bearing capacity and resistance to corrosion and external pressure. Available Sizes: 300 mm 450 mm 600 mm 750 mm 900 mm 1000 mm 1200 mm

Prestressed concret Pipes cater to Intermediate pressure range for which the metallic pipes are expensive while RCC pipes Would not be suitable. The strength of a PSC pipes is Achieved by helically binding high tensile steel wire under tention around a concrete core there by putting the core into compression.When the pipe is pressurised the stresses induced relieve the compressive stress but they are not sufficient to subject the core to tenslie stresses. The prestressing wire is protected against corrosion by a surround of cementatious cover coat giving at least 25mm of cover.It is unique combination of dyrability of concrere and high strength of steel combined with economy in raw materials. The PSC pipes are ideally suited for water supply main wherepressures in range of 6 Kg/cm2 to 20 Kg/cm2 are encounteredTwo Types of PSC Pipes are Use todayCylinder Type : Consists of concrete lined steel cylinder with steel joint rings welded to its ends warpped with a helix of highly stressed wire and coated with dense cement mortar concrete.Non Cylinder Type : Consists of concrete core which is pre_compress both in longitudinal and circumferential directions by a highly stressed with the wire wrapping is protected by coat of cement mortar or concrete.

Prestressed Concrete Pipe ( PSC ) IHP Introduced this pipe in the year 1956, in technical collaboration with Rocla Pipes, Australia. This product is the best choice for applications like: Pressure water transmission and distribution mains (Pumping Gravity) for water supply, Drainage, Lift Irrigation Schemes.Re-circulation and cooling water pipe lines. For plants like Thermal Power, Chemical, Cement, Fertilizer, Paper, Refineries etc.Pressure water lines.Large diameter inverted siphon. The Design The Basic Principle is to adopt wall thickness, circumferential and longitudinal Prestress to ensure freedom from tensile stresses in the core pipe under the most severe combination of sustained internal pressure and external loads likely to occur in service.When transient loads such as surge or traffic are added to sustained loads, tensile stresses up to 30 kg/cm2 maximum may be permitted in concrete.It is usual to divide pipelines in steps of Internal Pressure and design pipe for each section taking advantage of economy to be gained by tailoring design to suit actual needs without reducing safety. Where local high pressures or heavy external loads occur, pipes in these places can be strengthened without affecting cost of the remainder of the pipeline.The following load components are taken into account. Mass of PipeBedding and BackfillMass of water in pipeConstruction traffic wheel loadsSustained Internal PressureHighway traffic wheel loadsSurge The Manufacturing Process The process of Manufacturing IHP Prestressed Concrete Pipes consists of the following steps Longitudinal Prestressing Longitudinal wires of specified diameter and length are placed between two end rings of the mould assembly, and stretched to the required tension. Batching Mixing of concrete Required quantity of aggregates, cement and water are mixed to produce high strength concrete. Spinning Concrete is fed into the mould and is compacted by centrifugal spinning process to produce a high strength concrete core pipe. Demoulding The tension in the longitudinal wires is released, making longitudinal pre-compression to the core pipe and then the core pipe is taken out of the mould. Core Curing The core pipe is put in sprinkler yard until the concrete in the core pipe has attained adequate strength to withstand circumferential prestressing load. Winding The core pipe is wrapped with high tensile wire at pre-determined pitch and tension to induce the desired pre-compression in the body of the core pipe. Coating The steel wrapping is covered with a dense cement mortar coat by means of a brush coater developed by IHP. This coat creates and maintains a high alkaline environment around the prestressing wire and protects it from corrosion. Curing The completed pipe is cured until it attains the desired strength. Hydrostatic Testing Each and every pipe is subjected to hydrostatic pressure test in the factory before despatch. Specials The necessary special fittings such as bends, tees and others supplied with the pipe are made of steel shells with a concrete lining and outer coating or corrosive resistant paint. The ends are fitted with rubber ring joints for connecting them to the concrete pipe.

We were technically involved in Vishakhapatnam City Pre-Stressed Pipes project to bring potable water to the city. We can set up pilot plant for any such projects in Orissa . The pre-stressed pipes are covered under BIS code of

Manufacturing, trading and supplying PSC Pipe Rubber Ring with following specifications and features. Features: Negligible maintenanceLight weightDamage resistant Specifications: Type: PSC (PRESTRESSED)Design: As per demandsDimensions: CustomizedRange: Varies as per demands

Prestressed concrete is a method for overcoming concrete's natural weakness in tension.. Prestressing tendons (generally of high tensile steel cable or rods) are used to provide a clamping load which produces a compressive stress that offsets the tensile stress that the concrete compression member would otherwise experience due to a bending load. The technique of prestressing is one of the recent developments of concrete constructions and is particularly suitable for the manufacture of concrete pipes. The most outstanding property of P.S. concrete is its very high resistance to cracking. This feature is of great importance in water pipe line. It can be used to produce beams, floors or bridges with a longer span than is practical with ordinary reinforced concrete. P.S.C Pipes serve as a critical input for wide range of applications such as water supply; lift irrigation and drainage schemes which involve high pressure. Design: PSC Pipes are manufactured using the similar fundamentals as RCC Pipes. However, before concrete mix is fed into the rotating moulds, longitudinal wires of specified diameter and length are placed between two end rings of the mould. These wires are stretched to reach the requisite tension after which the centrifugal casting is done. The core pipe that is produced is wrapped with a high tensile wire using a wire winding machine, followed by a dense cement mortar coating. The cured pipes are subjected to a hydrostatic pressure test. Key Raw Materials: 1. Cement 2. High Tensile Wire 3. Stone aggregate Experience: Date of commencement of production: June 5, 2003 Capacity as per BIS License at that time: 350mm, 450mm, 500mm, 600mm, 700mm, 900mm Capacity as on date as per BIS License: 300mm to 1600mm The prestress concrete pipes are manufactured in line with the IS Standard specification No.784-2001. Comparatively new in this line of product, CUL has picked up significant projects in areas of Uttar Pradesh, Madhya Pradesh and Haryana. The pipes laid down has been reportedly servicing satisfactorily without breakdown or corrosion.

Ihp introduced this pipe in the year 1956, in technical collaboration with rocla pipes, australia. This product is the best choice for applications like: pressure water transmission and distribution mains (pumping & gravity) for water supply, drainage, lift irrigation schemes. re-circulation and cooling water pipe lines. For plants like thermal power, chemical, cement, fertilizer, paper, refineries etc. pressure water lines. large diameter inverted siphon. outfall sewers. gravity sewer systems. total pipes supplied & installed till date are over 7500 kms. storm water drains. culverts - use of psc in place of np3, np4 class pipes. conveying any liquid, not corrosive to concrete including sea water and sewage force main. the design the basic principle is to adopt wall thickness, circumferential and longitudinal prestress to ensure freedom from tensile stresses in the core pipe under the most severe combination of sustained internal pressure and external loads likely to occur in service. when transient loads such as surge or traffic are added to sustained loads, tensile stresses up to 30 kg/cm2 maximum may be permitted in concrete. it is usual to divide pipelines in steps of internal pressure and design pipe for each section taking advantage of economy to be gained by tailoring design to suit actual needs without reducing safety. Where local high pressures or heavy external loads occur, pipes in these places can be strengthened without affecting cost of the remainder of the pipeline.

PSC Handle-Tech Pipe Lifter PSC Hand Safety - Hand Safety Tool Handle-Tech Pipe Handle: Revolutionizing Industrial Safety The Handle-Tech Pipe Handle is an innovative safety solution designed to transform manual handling across industrial sectors. This cutting-edge tool enables workers to lift pipes and hoses weighing up to 400 pounds with unprecedented ease and minimal physical strain. Engineered from durable long glass nylon, the Handle-Tech provides exceptional performance in challenging environments like oil and gas, construction, and environmental services. Its unique click-and-grip mechanism allows one-handed operation, significantly reducing workplace injury risks.Compatible with pipes and hoses ranging from 2 to 12 inches in diameter, the tool offers remarkable versatility. Its ergonomic design promotes proper lifting techniques, preventing back injuries and repetitive strain complications.Temperature resistant and chemically durable, the Handle-Tech Pipe Handle represents more than just a lifting device it's a comprehensive approach to workplace safety. By prioritizing worker protection and operational efficiency, this tool sets new standards in industrial handling equipment.

Pre Stressed Concrete PSC

IHP Introduced this pipe in the year 1956, in technical collaboration with Rocla Pipes, Australia. This product is the best choice for applications like: Pressure water transmission and distribution mains (Pumping Gravity) for water supply, Drainage, Lift Irrigation Schemes. Re-circulation and cooling water pipe lines. For plants like Thermal Power, Chemical, Cement, Fertilizer, Paper, Refineries etc. Pressure water lines. Large diameter inverted siphon. Outfall Sewers. Gravity Sewer Systems. Storm water Drains. Culverts - Use of PSC in place of NP3, NP4 class pipes. Conveying any liquid, not corrosive to concrete including sea water and sewage force main. The Design The Basic Principle is to adopt wall thickness, circumferential and longitudinal Prestress to ensure freedom from tensile stresses in the core pipe under the most severe combination of sustained internal pressure and external loads likely to occur in service. When transient loads such as surge or traffic are added to sustained loads, tensile stresses up to 30 kg/cm2 maximum may be permitted in concrete. It is usual to divide pipelines in steps of Internal Pressure and design pipe for each section taking advantage of economy to be gained by tailoring design to suit actual needs without reducing safety. Where local high pressures or heavy external loads occur, pipes in these places can be strengthened without affecting cost of the remainder of the pipeline.

IHP Introduced this pipe in the year 1956, in technical collaboration with Rocla Pipes, Australia. This product is the best choice for applications like: Pressure water transmission and distribution mains (Pumping Gravity) for water supply, Drainage, Lift Irrigation Schemes. Re-circulation and cooling water pipe lines. For plants like Thermal Power, Chemical, Cement, Fertilizer, Paper, Refineries etc. Pressure water lines. Large diameter inverted siphon. Outfall Sewers. Gravity Sewer Systems. Storm water Drains. Culverts - Use of PSC in place of NP3, NP4 class pipes. Conveying any liquid, not corrosive to concrete including sea water and sewage force main. The Design The Basic Principle is to adopt wall thickness, circumferential and longitudinal Prestress to ensure freedom from tensile stresses in the core pipe under the most severe combination of sustained internal pressure and external loads likely to occur in service. When transient loads such as surge or traffic are added to sustained loads, tensile stresses up to 30 kg/cm2 maximum may be permitted in concrete. It is usual to divide pipelines in steps of Internal Pressure and design pipe for each section taking advantage of economy to be gained by tailoring design to suit actual needs without reducing safety. Where local high pressures or heavy external loads occur, pipes in these places can be strengthened without affecting cost of the remainder of the pipeline. The following load components are taken into account. Mass of Pipe Bedding and Backfill Mass of water in pipe Construction traffic wheel loads Sustained Internal Pressure Highway traffic wheel loads Surge Best economy and safety are achieved when pipe is designed for realistic in-service pressures and loads. The alternative method of designing pipes for a factory test, based on working pressure plus an arbitrary factor without regard to surge, earth or traffic loads is sometimes inadequate for low pressure. The same method can be wasteful for high pressure pipelines. Following determination of wall thickness and prestressing the next step is to calculate factory test pressure which will stress pipe as severely as it will be stressed in service taking into account mass of pipe and water and support condition. If a pressure, test is required on pipes after installation the value may be similarly calculated. The required ring strength of pipe can be readily established because internal pressure and external load conditions of the pipeline are known.

We are one of the leading manufacturers of Prestressed Pipes in India. The Prestressed Pipes manufactured by us have proved them selves of extreme quality and durability. Our Clients spread in many states in India are the witnesses of the same. Drinking water mains arrow Irrigation water mains arrow Industrial waste water mains arrow Disposal of sewage arrow All pumping and gravity mains arrow Pressure water transmission and distribution mains (Pumping and Gravity) for water supply. arrow Drainage arrow Lift Irrigation Schemes. arrow Re-circulation and cooling water pipe lines. For plants like Thermal Power, Chemical, Cement, Fertilizer, arrow Paper, Refineries. Etc. arrow Pressure water lines arrow Large diameter inverted siphon arrow Outfalls Sewers arrow Gravity Sewer Systems arrow This is the very economical pipe than the other type of pipe arrow No special tools are required for jointing arrow PSC Pipes are being rigid, normal backfilling is sufficient. arrow Maintenance cost very low when properly maintained and laid. arrow PSC pipe can be safely used up to 25 kg/cm2 factory test pressure which is the normal maximum requirement in water supply scheme arrow When PSC pipes are manufactured and jointed as per laid down procedures then there will be no leakages arrow PSC pipe is durable and last for long time with high-class performance. In India PSC, pipelines are working quite satisfactory for last 6 decades. arrow The joints are flexible, since PSC, Pipes are always laid on formed bedding; any ground movement or erosion of surrounding soil cannot disturb the pipelines arrow Since PSC Pipes are having rubber ring joint, the jointing work is very fast even with ordinary laying gang arrow PSC Pipes are very strong for laying in most of the soil conditions normally met within the country. arrow Maintenance cost very low when properly maintained and laid arrow Size of the trust block required will be comparatively smaller because of higher weight of pipe arrow Thread Rolling Machine = Here High Tensile (H.T), longitudinal, fixed lengths are threaded at both ends on threading machine, after threading M.S buttons are inserted at both ends arrow Tensioning Machine = Here the above longitudinal are put inside the moulds and inserted into the specific tension bolt used for giving tension or stresses in longitudinal. To give tension longitudinal the tension bolts are pulled with the help of hydraulic jack connected to standard hydraulic machines. arrow Concrete Mixer = This is specially made mixer where concrete is add mixer by special mechanical devices. arrow Molding Machines = The ready moulds (as Fig. no. 5 6 shows) are kept on runners and spin with a mechanical device called Servo Drive System. While spinning, the concrete is fade, with help of Conveyer Belts (Ref.fig.no.6) concrete gets set due to centrifugel force and after setting mould will be removed and kept the green mould for enitial setting. Then the mould is stopped and roll down base after this process Socket is finished with the help of Socket Polish Brush. arrow Assembling and Demoulding = Here molds are demolded and core pipe is taken out with mechanical device. Then this core pipe is rolled in the sprinkler. Here the core pipes are used for 3 to 4 days for allowing required concrete strength. arrow

IHP Introduced this pipe in the year 1956, in technical collaboration with Rocla Pipes, Australia. This product is the best choice for applications like: Pressure water transmission and distribution mains (Pumping Gravity) for water supply, Drainage, Lift Irrigation Schemes. Re-circulation and cooling water pipe lines. For plants like Thermal Power, Chemical, Cement, Fertilizer, Paper, Refineries etc. Pressure water lines. Large diameter inverted siphon. Outfall Sewers. Gravity Sewer Systems. Storm water Drains. Culverts - Use of PSC in place of NP3, NP4 class pipes. Conveying any liquid, not corrosive to concrete including sea water and sewage force main. The Design The Basic Principle is to adopt wall thickness, circumferential and longitudinal Prestress to ensure freedom from tensile stresses in the core pipe under the most severe combination of sustained internal pressure and external loads likely to occur in service. When transient loads such as surge or traffic are added to sustained loads, tensile stresses up to 30 kg/cm2 maximum may be permitted in concrete. It is usual to divide pipelines in steps of Internal Pressure and design pipe for each section taking advantage of economy to be gained by tailoring design to suit actual needs without reducing safety. Where local high pressures or heavy external loads occur, pipes in these places can be strengthened without affecting cost of the remainder of the pipeline. The following load components are taken into account. Mass of Pipe Bedding and Backfill Mass of water in pipe Construction traffic wheel loads Sustained Internal Pressure Highway traffic wheel loads Surge Best economy and safety are achieved when pipe is designed for realistic in-service pressures and loads. The alternative method of designing pipes for a factory test, based on working pressure plus an arbitrary factor without regard to surge, earth or traffic loads is sometimes inadequate for low pressure. The same method can be wasteful for high pressure pipelines. Following determination of wall thickness and prestressing the next step is to calculate factory test pressure which will stress pipe as severely as it will be stressed in service taking into account mass of pipe and water and support condition. If a pressure, test is required on pipes after installation the value may be similarly calculated. The required ring strength of pipe can be readily established because internal pressure and external load conditions of the pipeline are known. However, since loads causing longitudinal stresses are not known with certainty, it is assumed for design purposes that bedding is deficient and that pipe is a beam supported as its ends with backfill loads distributed evenly along the length of the pipe. This is conservative because installation specifications require bedding to be uniform along the length of pipe. Joint assembly design is related to clearances between joint surfaces , tolerance to pipe ends, rubber ring size, rubber hardness, creep of rubber on concrete. Blow-out resistance is produced for the most unfavorable combination of joint deflection and tolerance of pipe ends.

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