Azuma Iron Works co.,LTD. ■Japanese

All Round Valve Manufacturer

Azuma Iron Works co.,LTD.
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IV.General Industrial Plants



38. Dredge Valves

Outline

We are specialized valve maker with the know-how which was cultivated by the longtime results, technology development, and abundant experience.
We contributed greaty to each industrial development.
We developed this dredge valves unique which are very unique above all specialized valves in our manufacturing products.

The fluid of dredge valves is the muddy water mixed with sand, gravel and many other matters of a harbor river.
Therefore, the fuild flow part and valve seat are made to be worn and are made to be damaged.
And life cycle of derdge valves becomes quite short.
Moreover, there could be many operational problems so that the valve body inner part other than fuild flow is clogged by the muddy fluid with sand and gravel.
We developed the dredge valves which could settle all these problems.

Prominent features

  • The valve seat material is wear-resistant rubber.
    And the valve seat is located at both side of upper and lower stream side in the valve body.
    At valve full opening, two rubber seats are designed to contact tightly each other and to defend the deposition of the sand and the gravel to the valve body that came off the fuild flow part.
  • Azuma Iron Works has design to provide the cleaning port and the discharging port by washing easily.
  • The protector is located in the inside of a rubber valve seat to lengthen life.
  • This protects and rubber seat is unified in a cartridge and can be inserted and can be taken out easily and promptly without removing from the pipes.

Dredge Valves

Dredge Valves

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Products List
01. Blast Furnace Top Seal Valves /  02. Blast Furnace Top Bleeder Valves /  03. Blast Furnace Pressure Equalizing・Releasing Valves (Swing Type) /  04. Blast Furnace Secondary Pressure Equalizing Valve(EccentricType Control・On-Off) /  05. Blast Furnace Gas Shut-off Valves /  06. Emergency Relief Valves(Inside Open Type & Swing Type) /  07. Blast Furnace Discharge Valves for Cyclone (Swing Type) /  08. Swing Valves for Gas Sampling /  09. Swing Valves for TV Camera /  10. Plug valves for Sounding /  11. Valves for Center Feeder of Cokes /  12. Automatic Open and Close Manhole /  13. Hot Blast Flow Control Valves /  14. Bleeder Valves for Annulus Pipe(Blow off Valves・Snort Valves) /  15. Tuyere Stock(Blow Pipe・Bend Pipe・Down Leg) /  16. Septum Valves /  17. Inlet Valves for TRT /  18. Inlet Shut-off Valves for TRT(Goggle Valve)(Common with Item 30) /  19. Emergency Shut-off Valves for TRT /  20. Control Valves for TRT /  21. By-Pass Valves for TRT /  22. Out-let Valves for TRT /  23. Dust Discharge Valves for DC /  24. Bleeder Valves for DC /  25. Pug Mill for DC /  26. Double Valves of Dust Discharge for Sinter Plant(under Main Duct) /  27. Triple Valves of Dust Discharge for Sinter Plant(under EP and Cyclone) /  28. Drain Recovery Valves for ulverized Coal Transport System /  29. Swing Valves for Slug Granulation System /  30. Goggle Valves(Common with Item 18) /  31. Large Size Butterfly Valves(Common with Item 45) /  32. Large Size Swing Butterfly Valves(Link Valve)(Common with Item 46) /  33. Large Size Damper(Common with Item 47) /  34. Oxegen Valves・Low temperature Valves /  35. Water Sealed Gas Seal valves /  36. Discharge Valve for Converter Gas Recovery Equipment /  37. Sludge Discharge Valves /  38. Dredge Valves /  39. Feeder Valves for Mud Melting Refuse-Burner(Shut off damper + Double Swing amper) /  40. Discharge Valves for Melting Refuse-Burner (Triple Swing damper) /  41. Blow off Valves /  42. Vacuum Valves /  43. Exhaust Gas Dumper /  44. Plunger Valves /  45. Large Size Butterfly Valves(Common with Item 31) /  46. Large Size Swing Butterfly Valves(Link Valve)(Common with Item 32) /  47. Large Size Damper(Common with Item 33)