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H3152, H3153 Compound Material Double Triangular Gully Grating & Frame Specification
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H3152, H3153 Compound Material Double Triangular Gully Grating & Frame Drawing
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H3152, H3153 Compound Material Double Triangular Gully Grating & Frame (adjacent to kerb)
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Compound Material Triangular Gully Grating & Frame
Features : Vee shaped seatings provide cover stability under load.
High acid resistance.
Functions : To be used with Kerb Overflow Weirs to collect roadside ground
water into underground drainage system.
Types : 1) Adjacent to Kerb (Can be used with kerb overflow weirs)
2) Away from Kerb
Test Details of Double Triangular Gully Grating & Frame
Load Test
Type of gully grating and frame GA1-450
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Grade |
Test requirements |
| Diameter of block (mm) |
Test load (t) |
| Grating |
Heavy duty |
300 |
20 |
Frame, adjacent to kerb
C-DTG-432-517-J |
Heavy duty |
300 |
20 |
Frame, away from kerb
C-DTG-432-517-Y |
Heavy duty |
300 |
20 |
Acid resistance test
Type of gully grating and frame
GA1-450 |
Test requirements |
Double triangular gully grating & frame
adjacent to kerb, C-DTG-432-517-J |
Immerse in a sulphuric acid solution
(H2SO4) of 20% concentration for
48 hours,
no obvious corrosion on surface
of the sample and loss in mass<1% |
Double triangular gully grating & frame
away from kerb, C-DTG-432-517-Y |
 Highways Department H Series Standard Drawings
for H3152, H3153
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Tel: 2674 2393 / 2674 6983 
