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Quality Fluid Conveyance Products Quality Fluid Conveyance Products
DPI TradingDPI Trading
Ductile Iron has a higher breakage safety coefficient, since it follows any deformation due to loads without breaking (unlike cast iron), the returning to the original condition after stress.
Cast Iron is made up of thousands of plates which interrupt the continuity of the metal matrix and consequently jeopardise its mechanical resistance and make it subject to possible cracking or braking.
Ductile Iron is made up of spheroids achieved by introducing a suitable quantity of magnesium into the bath before the casting. This gives the product a high breading load as well as remarkable elasticity
A) THE DIFFERENCE BETWEEN DUCTILE AND GREY CAST IRON
B) THE BENEFITS OF DUCTILE IRON
Ductile Iron
The Ductile Iron high strength to weight ratio allows for the production of light weight castings that offer what can amount to a 50% weight saving over traditional cast iron to achieve improved strength
Loading Class Table ( SANS 50124)
CAST IRON DUCTILE IRON
Mechanical Properties
Elasticity 270 Mpa
Tensile Strength 420 Mpa
High Elongation > 10%
SANS 558 (Grey Iron) SANS 50124 (Ductile Iron)
DescriptionCast Iron surface boxes and manhole inspection covers and frames
Gully tops and manhole tops for vehicular and pedestrian areas-Designed requirements, type testing, marking, quality control
Materials covered Grey Cast Iron only
Spheriodal Graphic cast iron (Ductile Iron),Flake Graphite cast iron (Grey Iron): Cast Steel or any othermaterial that meet the relevant requirements
Loading ClassHD = Heavy duty 135 KnMD = Medium duty 40 KnLD = Light duty 7 Kn
A 15 = 15Kn D400 = 400KnB125 = 125Kn E600 = 600KnC250 = 250Kn F900 = 900Kn
SABS MARKSSABS 558 & SABS EN 124 comparison
PedestrianCyclist
SidewalksWalk WaysCar Parks
RoadwaysParking
DUCTILE IRON PIPE & FITTINGS
®
1
M60 D400SABS EN124
747,2
mm
ø649mm
ø610mm
ø612mm0
A-A
Type Ref. Code Class Duty Description2A 032442 D400 400Kn Type 2A Ductile Iron Snap Lock Cover & Frame
TYPE 2A SNAP LOCK DUCTILE IRON COVER & FRAME
CLASS D400 - 400Kn
DUCTILE IRON PIPE & FITTINGS
®
Product Listing
100mm
2
624mm dia Cover550mm dia Daylight opening
Stopper for Lift Location
Section showing Cover in Frame646mm dia
The Cover and Frame become an integral unit when locked. Ensures no rocking or dislodging, as well as water tight.
4 Lugs on cover underside rotate anti-clockwise to engage with wedge and lock. To lift Cover out of frame, Cover is rotated clockwise to stopper at cut out. Lug then lifts out through cut out.
Section showing Locking Wedge
115
mm
LOCK
OPEN
SG
2A
EN124-SABS-D400
PATENT 2002/8321
GJ
EN124-SABS-D400
LOCK
OPEN
SG
2A
EN124-SABS-D400
PATENT 2002/8321
GJ
EN124-SABS-D400
TYPE 2A & 2B ROTATING WEDGE LOCK DUCTILE IRON COVER & FRAME
CLASS D400 - 400Kn
Type Ref. Code Class Duty Description2A 032443 D400 400Kn Type 2A Ductile Iron Rotating Wegde Lock Cover & Frame2B 032444 D400 400Kn Type 2B Ductile Iron Rotating Wegde Lock Cover & Frame
DUCTILE IRON PIPE & FITTINGS
®
Product Listing
3
TYPE 3A DUCTILE IRON COVER & FRAME & TYPE 3B DUCTILE IRON COVER & FRAME
CLASS B125 - 125Kn
TYPE 5 DUCTILE IRON COVER & FRAME
CLASS B125 - 125Kn
Frame
Cover
EN124-B125
Frame
400 x 325mm + 1/-0Cover
152
mm
Chain fixed toCover and Frame
380 x 305mm daylight opening
533 x 458mm
c
121mm
Staple
Chain
Staple Conical Frame
Covers
230mm
310mm
Type Ref. Code Class Duty Description3A 032445 B125 125Kn Type 3A Ductile Iron Cover & Frame3B 032446 B125 125Kn Type 3B Ductile Iron Cover & Frame
Type Ref. Code Class Duty Description5 032447 B125 125Kn Type 5 Ductile Iron Cover & Frame
DUCTILE IRON PIPE & FITTINGS
®
Product Listing
4
25Kg DOMESTIC DUCTILE IRON COVER & FRAME
CLASS A15 - 15Kn
En124 A15 SABS M60.45
G J
DOMESTIC SG IRON 600 X 450mm
FRAMEC-Daylight Opening
2/ Chains
ed
30m
m
COVERa 647mm
Type 9A DUCTILE IRON COVER & FRAME
CLASS B125 - 125Kn
M 60 x 60
GJ
En124 B125
FRAME
C-Daylight Opening
2/ Chains
ed
56m
m
COVERb 686mm
600mm
Type Ref. Code Class Duty Description25Kg 032450 A15 15Kn 25kg Domestic Ductile Iron Cover & Frame
Type Ref. Code Class Duty Description9A 032448 B125 125Kn Type 9A Ductile Iron Cover & Frame
DUCTILE IRON PIPE & FITTINGS
®
Product Listing
5
Type 9D DUCTILE IRON COVER & FRAME
CLASS B125 - 125Kn
FRAME
C-Daylight Opening
2/ Chains
COVER686mma
Type 8 DUCTILE IRON HINGED GRATE & FRAME
CLASS C250 - 250Kn
EN 124 C250
323mm GrateFrame 506mm
GJ
EN124 B125
M60 x 45
SG
686mm
Type Ref. Code Class Duty Description9D 032449 B125 125Kn Type 9D Ductile Iron Cover & Frame
Type Ref. Code Class Duty Description8 032451 C250 250Kn Table 8 Ductile Iron Hinged Grate & Frame
DUCTILE IRON PIPE & FITTINGS
®
Product Listing
6
Quality Fluid Conveyance Products Quality Fluid Conveyance Products
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