Supporting Products

Product List

• Backfill Pipeline Cleaning Ball

  

  Backfill Pipeline Cleaning Ball

  • 

    Bullet-shaped type

  • 

    Ball-shaped type

• Check Valve

  Non-return valve for concrete jacking pipes

  

  Check Valve

  MAK TECH check valves are designed with a focus on quality improvement and construction efficiency. The design has been successfully developed, patented, and supplied for use in tunneling and grouting applications. * Utility Model Registration No.: 20-0427814 * Design Registration No.: 30-0464440

  • Issues with Conventional Products

    • Leakage caused by incomplete closing of valve flaps

    • Frequent damage and product defects

    • Difficulty in valve opening due to earth pressure

  • MAK TECH Check Valve

    • Advanced material ensures fast and reliable sealing

    • Four-flap structure distributes earth pressure for smoother opening

    • Impact-resistant design that does not break even when forcefully inserted

  Specifications

  • 2’ (50.8mm)

    

  • 3/4’ (18mm)

    

• Segment Grout Socket

  2’ , 3’

  

  Segment Grout Socket

  This segment grout injection pipe (2-inch or 3-inch type) is designed to ensure safe and efficient operations during segment handling and assembly in shield tunneling works. It also enables backfilling operations behind the tunnel lining through the injection pipe. When the screw cap is properly secured, the pipe can withstand water pressure of up to 12 bar.

  Product Components

  • 

    Screw Cap

  • 

    Non-Return Valve

  • 

    Grout Socket Body

  Pull-Out Test

  • 

    Test Rig

  • 

    Structure Failure