DS1077A Ductile Iron Double Triangular Manhole Cover & Frame Specification

DS1077A Ductile Iron Double Triangular Manhole Cover & Frame Drawing

DS1077A Ductile Iron Double Triangular Manhole Cover & Frame for Storm Water, Heavy Duty

DS1077A Ductile Iron Double Triangular Manhole Cover & Frame for Foul Water, Heavy Duty

Ductile Iron Double Triangular Manhole Cover and Frame

Features       : Inverted vee seatings combine with three point suspension to 
                       provide cover stability under load and to discourage abrasive
                       material from becoming trapped under the bearing points.

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 ductile iron manhole cover and frame

Type of manhole cover and  frame	Grade	Test requirements
		Diameter of test block (mm)			Test load (kN)
Double triangular manhole cover and frame (DS1077A)	Heavy duty	250			600

Drainage Services Department DS Series Standard Drawings
     for DS1077A