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Cast Iron Double Seal Manhole Cover & Frame Specification
Cast Iron Double Seal Manhole Cover & Frame Drawing
Cast Iron Double Seal Manhole Cover & Frame for Foul Water, Light Duty, DS1038B
Cast Iron Double Seal Manhole Cover & Frame for Storm Water, Light Duty, DS1042B
Cast Iron Double Seal Manhole Cover & Frame for Foul Water, Heavy Duty, DS1036B
Cast Iron Double Seal Manhole Cover & Frame for Storm Water, Heavy Duty, DS1040B
Cast Iron Double Seal Manhole Cover & Frame

Features       : Airtight when sealing groove is filled with grease or other suitable
                       compound.

Functions     : Designated to be used in Government roadway drainage projects
                       and maintenance projects.

Applications : For Storm Water (with circumscribed raised stubs on the cover)
                       For Foul Water (with rectangular raised stubs on the cover)


Test Details of Cast Iron Double Seal Manhole Cover & Frame 
Type of manhole cover and  frame  Grade  Test requirements
 Diameter of block (mm)  Test load (t)
 Type MA2-29/29 A&B
 (DS1039B, DS1035B)
 Heavy duty  300  20
 Type MA2-45/45 A&B
 (DS1040B, DS1036B)
 Heavy duty  300  20
 Type MC2-29/29 A&B
 (DS1041B, DS1037B)
Medum duty  100  5
 Type MA2-45/45 A&B
 (DS1042B, DS1038B)
Medium duty  100  5


Drainage Services Department DS Series Standard Drawings
      for DS1035B, DS1036B, DS1037B, DS1038B, 
           DS1039B, DS1040B, DS1041B, DS1042B



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