Specification

APPLICATIONS AND PROPERTIES

RIGID PVC "PRESSURE" PIPES are principally intended for conveyance of alimentary liquids, drinking water, waste water and sewerage pressure. Their main uses for water, mains, urban water distribution systems, house water connections, land drainage and sewerage as well as electrical and telephone cabin ducts.

General Properties

  • Specific Gravity 1.35 g/cm³
  • Inflammability will not support self-extinguishing.
  • Complies with ISO 2506
  • Heat Reversion < 4mg/cm² complies with
  • Water Absorption ISO 2508 DIN 5061-8062

Thermal Properties

  • Specific Heat 0.24 Cal./deg°./g/
  • Thermal Conductivity 0.12kcal./m.h./°C.
  • Linear Expansion 0.080 mm./m/°C.
  • Heat Distortion Temperature
  • at 18.6kg/cm² 70° c

Mechanical Properties

  • Tensile strength > 450 kgf/cm²
  • Compressive Strength > 670 kgf/cm²
  • Flexural Strength > 950 kgf/cm²
  • Elongation at Break Greater than 80%
  • Modulus of Elasticity 28000-32000 kgf/cm²
  • Hardness (Rockwell) > 100 kgf/cm²

Electrical Properties

  • Breakdown Voltage 2000 volts/mm.(on 1 mm. thickness)
  • Volume Resistivity 10 ohms/cm
  • Power Factor 0.02 (at 10 cycles)
  • Dielectric Constant 3.0-3.2 (at 10 cycles)
  • Chemical Properties. High Resistance to Acids & Alkaline

CHARACTERISTICS AND GENERAL ADVANTAGES

GENERAL EXPANSION

Like all other thermoplastics, "PVC" has a high coefficient of thermal expansion (0.080mm./m/oC.). Allowance must be made for this during installation above ground, where "PVC" is subject to temperature changes. When there is an increase or decrease in temperature after the pipes are installed, they either expand or contract. If in such cases, both ends of the pipes are fixed, compressive stress or tensile stress will eventually be produced. Only one anchoring point should be used when attaching pipe to fixed equipment, and the pipe shouldn't be fixed too firmly to any supports. Double socket joints or flexible couplings should be used where necessary.

FIRE PROOFNESS

Like all other thermoplastics, "PVC" has a high coefficient of thermal expansion (0.080mm./m/oC.). Allowance must be made for this during installation above ground, where "PVC" is subject to temperature changes. When there is an increase or decrease in temperature after the pipes are installed, they either expand or contract. If in such cases, both ends of the pipes are fixed, compressive stress or tensile stress will eventually be produced. Only one anchoring point should be used when attaching pipe to fixed equipment, and the pipe shouldn't be fixed too firmly to any supports. Double socket joints or flexible couplings should be used where necessary.

ELASTICITY

Like all other thermoplastics, "PVC" has a high coefficient of thermal expansion (0.080mm./m/oC.). Allowance must be made for this during installation above ground, where "PVC" is subject to temperature changes. When there is an increase or decrease in temperature after the pipes are installed, they either expand or contract. If in such cases, both ends of the pipes are fixed, compressive stress or tensile stress will eventually be produced. Only one anchoring point should be used when attaching pipe to fixed equipment, and the pipe shouldn't be fixed too firmly to any supports. Double socket joints or flexible couplings should be used where necessary.

SMOOTH BORE

The smooth inside surface of "PVC" pipes gives excellent flow characteristics, minimizes flow loss, and stops the build-up of deposits and corrosive scales. Furthermore, the bore of our "PVC" pipe will remain constant over the passage of time and will not be gradually reduced by a corrosive build-up. Obviously this will allow for the specification of smaller bore pipe for a given rate of flow or, alternatively, a greater flow through a given diameter. No corrosion factor need be taken into consideration. Some important advantages of "PVC" PRESSURE PIPES are classified below to show at a glance how their use can lead to substantial savings in costs.

IN INSTALLATION:

  • Light weight and easy handling.
  • Low transportation cost.
  • Easy and speed in laying.
  • Easy cutting and drilling.
  • Impervious and lasting.
  • Long lengths, 6 meters (longer upon requested).
  • Long lengths, 6 meters (longer upon requested).
  • Convenient for use below and above ground.
  • Flexibility of joints allows for a slight deviation of pipes.

IN OPERATION:

  • Flexibility of joints allows for a slight deviation of pipes.
  • Resistance to both internal and external corrosion.
  • High insulating qualities.
  • Constant conveyance capacity. No corrosion factor needs to be taken into consideration.
  • Tight and perfect waterproof joints and ability to use different adhesive materials.
  • Lower pumping costs.

IN MAITINANCE:

  • Does not deteriorate with age.
  • Withstands temperature changes.
  • Resistance to sunlight and frost damage.
  • Impervious to chemical attack from either aggressive soils or water and not subject to rodent attack.
  • Ability to withstand external harmful forces.