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Cast stone composite straight pipe


Key words:

Cast stone

  • 详情介绍
  • Product code

    Nominal diameter DN

    Standard steel pipe outer diameter OD

    Minimum thickness t of filling layer

    Standard length L

    NFG80

    80

    ф159

    10

    4000,6000,8000

    NFG100

    100

    ф168

    NFG125

    125

    ф194

    NFG150

    150

    ф219

    NFG175

    175

    ф245

    6000

    8000

    12000

    NFG200

    200

    ф273

    NFG225

    225

    ф300

    NFG250

    250

    ф325

    NFG275

    275

    ф345

    NFG300

    300

    ф377

    NFG350

    350

    ф426

    NFG400

    400

    ф478

    12

    6000

    8000

    12000

    NFG450

    450

    ф529

    NFG500

    500

    ф600

    15

    NFG550

    550

    ф650

    NFG600

    600

    ф720

    20

    6000

    NFG650

    650

    ф770

    NFG700

    700

    ф820

    25

    NFG750

    750

    ф870

    NFG800

    800

    ф920

    Note: 1. The above is the specification table of cast stone composite pipe.
              2. Cast stone pipes of other specifications can be made according to user requirements.


    Thin-walled basalt cast stone composite pipes are composed of outer steel pipes, inner cast stone pipes, and cement mortar filling in the middle. It combines the toughness of steel pipes, the wear resistance and corrosion resistance of cast stone, and the consolidation of cement mortar. It greatly improves the product's adaptability to various complex working conditions. At the same time, using cement mortar as a filling material can keep the inner surface of the steel pipe in an alkaline medium and produce a purification film on the surface of the steel pipe to prevent corrosion. In conditions where the medium running speed does not exceed 10m/s and the density does not exceed 2g/cm3, the service life of the pipeline is generally not less than 50 years and is extremely convenient to transport and install.


    Cast stone composite pipes are divided into cast stone composite straight pipes, cast stone composite bent pipes, cast stone composite tees (four-way), cast stone reducers and other special-shaped pipe fittings.


    Cast stone composite pipes can be connected with flanges, quick-fit joints, or butt welding. The diameter series of cast stone composite bent pipes are the same as those of cast stone composite straight pipes, and their turning radius and center angle are made according to user requirements.


    The technical parameters of cast stone composite pipe outer steel pipe are determined according to the operating pressure of the pipeline system.

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