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George Fischer Thermoplastic Piping Systems

Thermoplastic piping systems have been relied on for decades to convey media, whether it's water for process cooling or hazardous liquids for industrial applications. Corrosion is no longer a problem when choosing the appropriate GEORGE FISCHER PIPING SYSTEMS. The harsh environment within chemical plants and the conveyance of chemicals place high demands on the piping systems in terms of safety, economic factors and subsequent maintenance:

  • No corrosion problems;
  • Safe and economical solutions;
  • Reduced maintenance costs;
  • Simple, but high quality installation;
  • Worldwide presence;
  • Widest range of plastic piping systems.

Pipe & Fittings

Quadrant Chemplast (Pty) Ltd proudly offers the complete range of GEORGE FISCHER connection systems & flow control, suitable for the safe transport of water, gases and other media in a variety of applications. This wide range consists of...

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Range of Valves

The GEORGE FISCHER range of valves are available in PVC-U, PVC-C, ABS as well as PP-H, PP-n and PVDF. A full range of valves include: diaphragm valves, ball valves, 3-way valves, butterfly valves and non-return valves in ball-check and...

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Instrumentation

In modern plant automation, process monitoring is increasing in importance. Trusted worldwide for its fluid measurement instruments and sensors, GEORGE FISCHER SIGNET is a leader in flow sensor insertion technology. We deliver advanced...

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Double Containment Systems

Industry has assessed that clean-up expenditures may far exceed the costs to install protective measures. When penalties and fines are added to the costs of cleaning up spills and leaks, it becomes obvious that industry has a legal and...

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Actuated Flow Control

GEORGE FISCHER PIPING SYSTEMS has the optimal actuator configuration for your individual needs. George Fischer offers electric and pneumatic actuation for diaphragm, ball and butterfly valves. Coupled with the actuator are several control...

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ABS Cool-Fit Refrigeration Systems

COOL-FIT is a complete system solution for secondary cooling and refrigeration piping systems. The system is based on the tried and tested ABS plastic system from GF Piping Systems which contains pipe fittings valves and transition...

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Tangit Solvent Cement

Whether for mains or distribution lines, service connections, fire fighting systems, irrigation or industrial applications, all pipes, fittings and valves must be safely and reliably joined together even when from different materials.

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Bead & Crevice Free Machines

Achieve unsurpassed fusion weld quality.

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Infra Red Welding Machines

The IR-Plus fusion machines from GF Piping Systems meet the highest demands in terms of fusion weld quality and purity.

 

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  • keyboard_arrow_downPlastic Pipe Sizes:

     

    Plastic pipe dimensions are, by convention, specified by the outside diameter, usually denoted by e. This may be supplemented by stating the nominal inside diameter or DN. Sometimes the pipe wall thickness is specified by the SDR or Standard Dimension Ratio.

     

    SDR = d divided by e.

    Where d = the outside diameter (mm)

    Where e = the pipe wall thickness (mm)

  • keyboard_arrow_downWhat Pipe Size?

     

    The pipe size can be calculated as follows:

    di = 18.8 √Q1 ÷  v

    Where:

    di = Inside pipe diameter (mm)

    Q1 = Flowrate in m3/h

    v = Flow velocity, usually 0.5 to 1.0 m/s for suction lines

    OR

    1.0 to 3.0 m/s for discharge lines.

  • keyboard_arrow_downPressure loss in straight pipe:

     

    A rough calculation of pressure loss in straight length plastic pipe can be done using,

    Δ Pr = λ × (L ÷ di) × (ρ ÷ 2.102) × v2

     

    Where:

    Δ Pr = Pressure loss (bar)

    λ = Pipe friction factor

    L = Length of straight pipe (m)

    di = Inside pipe diameter

    ρ = Liquid density (kg/m3)

    v = Flow velocity (m/s)

     

    For smooth bore plastic pipe: λ = 0.02

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