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    What We Offer

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  • SW PIPES - SEWER MATERIAL SUPERIORITY

    SW PIPES
    • SW pipes are produced from a known inert material. clay fired to vitrification state to last for 100 years with proven performance. o SW p1pe production is environmentally fnendly.
    • SW pipes are resistant to H2S attack, unlikeRC.
    • SW pipes are more resistant to chemical corrosion, and are suitable for trade waste discharge, unlike plastics.
    • SW pipes are more resistant to abrasion than RC.
    • SW pipes are more not degradable by UV radiation, unlike plastic without carbon black.
    • SW pipes have no significant variation in dimensions or shape with temperature variation.
    • Installation requirements are less stringent than flexible pipes.
    • Jointing procedures is re.latively simple. " Performance is not affected by any disturbance of pipe side support, unlike flexible pipes.
    • SW pipe is not buoyant like plastic pipe, therefore is not likely to move oft line and grade due to water in the trench
    High Density
    • HDPE pipes are produced from and unproven material synthetic rubber with and unknown history.
    • HDPE pipes can be degraded by high concentrations of certain chemicals. such as solvents over long contact times.
    • HDPE pipes expose to flame when they come into contact with gasoline or other flammable substances in a sewerage system.
    • HDPE pipes can be treated with fire-retardant material only at a higher cost.
    • HDPE pipes are susepitibleto deflection, deformation and damage from heavy impact loads.
    • HDPE pipes can be distorted in hot weather, i.e. ovalisation, bending along the length after backfilling which causes possible damage or displacement at joints.
    • Sidefill support is required to prevent excessive pipe flexure. Bedding requirements of HDPE pipes are more stringent than for rigid pipes.
    • Installation is time consuming and of higher costs as HDPE pipes are totally reliant on correct bedding and installation.
    • Site supervision is required at all times to ensure proper installation procedures are carried out.
    • HDPE pipes can not be used where future adjacent work may affect or disturb the pipe side support.
    • Welding in the field to repair of add branch off takes requires dry, clean conditions to be effective.
    Reinforced Concrete (RC)
    • RC Pipes are produced from a corrosive material, cement & steel. Rehabitating and relining of concrete sewers have been a severe and on-going claims on an economy.
    • RC pipes are subject to H2S corrosion. H2S is a common acid in sewer. Inner liners are required.
    • RC pipes are subject to most acid attack due to their alkali nature.
    • RC pipes are more costly with plastic or coal tar-epoxy-sand linings.
    • RC pipes are less abrasion resistant than SW.
    • RC have lower beam strength than sw
    • RC pipes are less resistant to impact damage.
    • Mechanical lifting equipment is required to mobilize pipes. Installation can be time consuming using mortar cement joint. Site testing and backfilling cannot be effected immediately.
    • Rigid joints with RC pipes are liable to crack easily following ground movement.
    •Installation cannot be effected in wet weather conditions.
  • 6 Reasons

    LONGEVITY
    On the surface, a less expensive substitute pipe material might appear to be the better buy. But once underground , it cou ld be more costly should the pipe fail prematurely and require replacement. It is important to note that the cost of digging or re-digging a trench for average installations is many times the price of the pipe. Substitute pipe materials fail for lack of sufficient structural integrity, abrasion resistance and the ability to perform under constant corrosive attack. In comparison, many Vitrified Clay Pipe lines installed over one-hundred-fifty years ago are still performing as efficiently as the day they were first installed. Any price difference between clay pipe and other kinds of sewer pipe is, in fact, insignificant when considering the overall project . Community health, public well being and future budgetary restraints make the choice of pipe material critical. Another very important aspect to consider is the Federal EPA cost-effective procedures assigning a 50-year minimum useful life standard for sanitary sewer pipe. The cost effectiveness of clay pipe for EPA funding can be based on documented 100-year minimum life.
      1 Also note that the Army Corp of Engineers'life expectancy rating assigned to clay pipe in the US Army Corp Life Cycle Analysis is higher than any other sewer pipe material.

      2 Before you choose the pipe material, compare the prod-ucts'guarantee of longevity.

    STRUCTURAL INTEGRITY
    Vitrified Clay pipe is a rigid material and is not subject to the problems of deflecting or flattening under load. The characteristics of clay pipe remain constant due to its inherent physical properties. Flexible plastic pipe, on the other hand, will deflect and distort with time . Extensive support from compacted bedding is required around the pipe in order to limit deflection. The cost of achieving this necessary support for flexible pipe can be substan-tial and must be considered in any evaluation. As shown in the accompanying diagram, initial pipe deflection is caused by trench load and soil consolidation . Creep, which is a characteristic of all plastics, causes additional pipe deflection with time.Unusual care is necessary in the design and instal-lation of flexible plastic pipe to prevent excessive deflection which can reduce the carrying capacity of the pipe and cause overloaded sewers, back-ups, leaky joints and costly maintenance. Severely deflected plastic pipe must be replaced at exces-sive, unplanned expense . Vitrified Clay Pipe , by contrast, is rigid and has historically demonstrated dependable service with a minimum of mainte-nance.

    TIGHT JOINTS
    Leaking joints permit infiltration of ground water, adding to the volume of sewage and to the process-ing costs at the sewage treatment plant. Tight joints are not only necessary to lock out ground water but also to prevent exfiltration of the sewage itself. Water pollution and potential contamination of ground water are important community -and national concerns . Advanced technology has resulted in major improvements in the jointing of pipe. Vitrified Clay Pipe has durable;compression, factory-applied joints and couplings that effectively eliminate water leakage. Field acceptance tests initiated by the clay pipe industry are commonly applied to all pipe materials.

    CORROSION RESISTANCE
    Corrosion resistance is one of the most important factors in the selection of sanitary sewer pipe since corrosion is one of the principal causes o pipe failure . Hydrogen sulfide, often accompanied by a "rotten egg" odor, is generated in sanitary sewers. Through a series of chemical reactions , hydrogen sulfide gas is converted to sulfuric acid, one of the most corro-sive of all acids. Pipe materials vary in their degree of resistance to the destructive action of sulfuric acid . Cement-bonded piping materials and metal piping material deteriorate quickly when exposed to sulfuric acid . Sanitary sewer pipe may also be subject to corrosion from acidic or alkaline soils, electrolytic decomposi-tion and temperature induced damage. Even with extra thickness or protective coatings, their ultimate failure is, in most cases, merely postponed. Sanitary sewers are also subjected to the dis-charge of industrial wastes and solvents. These fluids, including common household products, can attack both cement-bonded pipe and flexible plastic pipe, causing deterioration of the former and crack-ing or softening of the latter. Vitrified Clay Pipe is the only sewer pipe material proven over centuries of use to be resistant to attack by sulfide-generated acid, most industrial wastes and solvents or aggres-sive soils. The entire wall of clay pipe is chemi-cally inert-providing built-in protection against any disintegration or loss of strength. It does not require any lining or protective coating.

    GOOD FLOW CHARACTERISTICS
    Lifetime smoothness of a sanitary sewer line is basic to a good sanitary piping material. Documented studies show that all commonly used sewer pipe materials have similar flow characteris-tics.[3 •4 •5]
    With use, pipe materials that are not resistant to acid and solvent attack are roughened by corrosion. Rough surfaces and distorted diameters impede flow and reduce the carrying capacity of the line . Vitrified Clay Pipe retains its shape and resists corrosion better than any other sanitary sewer piping material. It is strong, rigid, chemically inert and immune to gases and acids normally found in sanitary sewer lines. It will maintain its smooth surface and its full car-rying capacity indefinitely.
      3 'Manning's Study of Flow Coefficients'calculated from test data. Don E. Bloodgood and J. M. Bell: Journal of Water Pollution Control Federation; Feb. 1961
      4"Accumulation of Slime in Drainage Pipes and Their Effect on Flow Resistance'; C.E.G. Bland, R.W. Bayley, E. V. Thomas: Journal of Water Pollution Control Federation: Jan. 1978
      5The Hydraulic Roughness of Slimed Sewers'; Perkins and Gardiner: lnst. Civil Engr.; March 1987

    ABRASION RESISTANCE
    Sanitary sewers accumulate a variety of materials such as stones, sand and gravel, which are carried along the bottom of the pipe by the flow of sewage. These granular materials are abrasive and subject the pipe to constant scouring . Indeed, some pipe may eventually wear through. Abrasion is a particular problem if corrosion - prone sewer pipe material has a thin plastic liner installed to prevent acid attack. Rigid Vitrified Clay Pipe , a ceramic material, is virtually unaffected by abrasion because of its hard, thick and dense pipe wall. The most severe abrasion tests conducted by













































  • Projects Gallery

    • Project Name 1
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    • Project Name 2
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    • Project Name 3
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    • Project Name 4
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    • Project Name 5
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  • Clients

    Jason Blunt
    CEO

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    Read More

    Jessy Williams
    Artist

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    Read More
  • Contact Form

    Contact form submitted!
    We will be in touch soon.
    Name:
    Email:
    Phone:
    Message:

    Contact Us

    Priya Klay Pvt.Ltd.
    Village Killa Zafargarh Rohtak-Jind Road, Distt JIND Haryana
    E-mail: priyaklay@gmail.com Fax: +91-1683-269401
    For Sales
    Mr. Raj Kumar:: +91-9354445202
    For More Information
    Aditya: +91-9541230000
  • Sw Pipes

    Available Size

    150 MM (6 Inch) 600 MM
    200 MM (8 Inch) 600 MM
    250 MM (10 Inch) 600 MM
    300 MM (12 Inch) 600 MM
    350 MM (14 Inch) 600 MM
    400 MM (16 Inch) 600 MM
    450 MM (18 Inch) 600 MM
    500 MM (20 Inch) 600 MM
    600 MM (24 Inch) 600 MM

  • Quality Control

    General Quality
    All pipes shall be round and free form visible defects which impair the strength, durability and serviceability. the glaze of pipe shall be free from crazing. The pipes shall give a sharp clear note when struck with a light hammer .

    Hydraulic Test
    When subjected to the hydraulic teat , straight pipes shall with stand an internal hydraulic test pressure of 0.15MPA OR 1.53Kg/cm2 on the Barrel, without showing signs of injury or leakage. The pressure shall be applied on pipes for at least 5 second.

    Water Absorption Test
    The test pieces for testing shall be taken from the body of the pipes but not from within 150 mm of the end. Each test pieces shall have two glazed surfaces each having an area of not less than 50 cm2 and not more than 130 cm2 . The test pieces shall be cleaned by wire brush to dislodge any loose particles which may increase loss of mass during boiling . The test piece shall be dried at a temperature of not less than 150* c and cooled in a desiccators to the room temperature and the specimen weighted to an accuracy of 0.1 g . The test piece may be suitably suspended in cold distilled water by mean of thread so that the test piece may not strike a against each other or the container and near loss in mass the water in the container shall then be brought to the boiling point . The water shall be maintained at that temperature for 1 hour and after to has been allowed to cool to room temperature , the test pieces shall be removed care fully wiped with a dry cloth and then the mass determined. The percentage increase in mass of test piece by absorption of water shall not exceed of following valves.

    Up to and including 20mm thickness 6% Water Absorption
    Over 20 mm and up to 25mm thickness 7% Water Absorption
    Over 25 mm and up to 32mm thickness 8% Water Absorption
    Over 32 mm and up to 38mm thickness 9% Water Absorption
    Over 38 mm 10% Water Absorption

    Alkal Resistance Test
    Test specimen shall be 5cm square, not more than 200 gram in mass and shall be throughly cleaned with wire brush. The specimens to be tested shall be dried to a constant mass (m1) at a temperature not less then 150*c. The specimen upon reaching constant mass shall be completely immersed in the test solution at the ambient temperature for a period of 48 hours. Then removed from the solution and carefully and thoroughly washed with hot distilled water. The solution shall be filtered and to the filtrate shall be added 5 ml of concentrated sulfuric acid. The solution shall then be evaporated and heated cautiously to dryness. It shall then be ignited to content Man ( M2 ). The loss in mass shall be calculated as follows.

    Alkal Resistance Test
    Heat the magnesium sulphate solution ( specific gravity 1.29 to 1.308 ) to the boiling temperature . Place the test sample in a wire basket and submerge into the boiling solution , continue heating for 2 hours. Then remove the sample and bring to a constant mass in a drier at a temperature not less than 110*c. Subject the test sample to at least five cycles using fresh solution for each cycle. After the completion of five cycle remove the sample from the solution, wash it and bring to constant mass in a drier at a temperature not less than 110*c. Air cool the sample and observe . There shall be no evidence or pitting softening spalling or cracking.

    Cryshing Strength Test
    When tested along the full length of the pipe barred from shoulder to spigot in accordance with specified procedure crushing strength of each class of pipe shall be not less than the valves given bellow.

    Internal Dia mm Up to 150 mm 200mm to 300mm 350mm to 450mm 500mm to 800mm
    SP1 16KN/M 16KN/M 16KN/M 16KN/M
    SP2 18KN/M 21KN/M 26KN/M 32KN/M
    SP3 21KN/M 24KN/M 32KN/M 60KN/M

    Permissible Tolerance On Length
    The permissible tolerance of length shall be within -1.5 percent and +4 percent of length.

    Permissible Tolerance In Internal Diameter

    100 mm – 350 mm+ 3%
    400 mm – 800 mm2.5 %
      
      

  • Sw Pipes

    MANUFACTURING PIPES AND FITTINGS
    Stoneware pipes are produced from the raw materials i.e. High temperature plastic clay quartz, dolomite and metallic oxides. These materials are compacted in auger machines and air is sucked out in the vacuum chamber. First the socket and then the pipe barrel are extruded in one step. Then the pipes are dryed and necessary water is extracted. After that a temperature of 1200°c. Is provided in the kilns and completely new material is formed by sintering. During drying and firing these clay articles lose. Approx. 10% of their initial volume after shaping. Glaze is provided during the firing process at the temperature of 1200°c. Now this new material has exceptional properties in respect of chemical resistance, mechanical strength. Hydraulic strength and hardness and becomes rigid pipes. After the glazing during firing there is absolutely no possibility of "chipping" occurring due to external water pressure or steam pressure. This is the essential difference between a glaze and any other kind of supplementary pipe coating.

    PROPERTIES OF STONEWARE PIPES
    Stoneware pipes and fittings are immune to attack by all alkalis or acids contained in waste water and ground water or in the earth, with the exception of hydrofluoric acid. S W pipe have hydraulic and crushing strength and extremely less water absorbtion.

    PRODUCTS
    Stoneware pipe IS the first material for which Uniform Technical Rules in the form of European standards have been elaborated under the mandate of the Commission of the European Community (EC) and the European Free Trade Association and accepted on June 17th, 1991. As a result of this ruling it is applied in the 18 Western European states which has the great importance in waste water technology.

    STRUCTURAL DESIGN
    Stoneware pipe Lines are mainly stressed by earth and traffic loads. Additional stresses may come from temperature influences and internal pressures .
      i) Rigid Pipes
    Due to the properties of crushing hydraulic, water absorbption, resistance chemicals, Acid and Alkalis. Stoneware pipes are rigid pipes and these rigid pipes do not deform under load.
      ii) Flexible Pipes
    Flexible pipes permit close interactions between · load, deformation of the pipe cross-section and load distribution. The computation of the deformation is decisive for the suitability. Rigid PVC pipes comes under this flexible pipes category and should not be laid in the sewer.

    ECONOMIC CONSIDERATIONS
    The discharging of domestic and industrial waste water 1s a public task. The public client is obliged to pay particular attention to the eco 1omic aspects which include the one-off costs for construction of the sewage line and the operation and maintenance costs should be considered together.
      i) Construction costs
    The cost of the pipe materials IS only a fraction of the entire costs of the project which is as under:

    i) Soil excavation and trench sheeting 48%
    ii) Road opening and resurfacing 13%
    iii) Manholes 11%
    iv) Pipe laying and bedding 10%
    v) Pipe delivery 10%
    vi) Trench dewatering 3%
    vii) Others 5%
      ii) Running Costs
    The operating and maintenance costs are the basis of the charges levied for use of the sewer. The running costs include:
    - Capital expenditure
    - Depreciation
    - Maintenance
    -Administration
    It can be assumed that estimated costs of maintenance and administration will be the same for all sewers. With regard to the capital expenditure the rate of depreciation. different costs however be anticipated, depending on the pipe material used. Owing to their resistance to corrosion. abrasion arrd temperature and their impermeability, sewers constructed from stoneware pipes have an above-average lifespan.
      iii) Economy is decisive
    Incorrect decisions may be made at the planning stage if a comparison merely takes into account the cost of pipes or the construction costs of the finished lines. The economic efficiency of the pipeline for the entire duration of its service life is the decisive factor. When this element is considered, the lower operating Csts and increased lifespan are signigicant advantages for the stoneware pipes.
      iv) Life Duration between installation of Stoneware pipes in sewer with the RCC, PVC PE-HD & ASBESTOS PIPES
    Constructed from stoneware pipes 80-100 Years
    Constructed from PVC pipes 20 Years
    Constructed from Cement pipes or RCC pipes 30 Years

    Sizes
    SW pipes arc manufactured from 100 mm to 600 mm internal Dia with length varies from 60cm to 90cm as per ISI standard IS-651