High Quality FRP GRP Pultruded Grating
FRP Pultruded Grating Availability
No. |
Type |
Thickness (mm) |
Open area (%) |
Bearing Bar Dimensions (mm) |
Center line distance |
Weight (kg/m2) |
||
Height |
Width top |
Wall thickness |
||||||
1 |
I-4010 |
25.4 |
40 |
25.4 |
15.2 |
4 |
25.4 |
18.5 |
2 |
I-5010 |
25.4 |
50 |
25.4 |
15.2 |
4 |
30.5 |
15.8 |
3 |
I-6010 |
25.4 |
60 |
25.4 |
15.2 |
4 |
38.1 |
13.1 |
4 |
I-4015 |
38.1 |
40 |
38.1 |
15.2 |
4 |
25.4 |
22.4 |
5 |
I-5015 |
38.1 |
50 |
38.1 |
15.2 |
4 |
30.5 |
19.1 |
6 |
I-6015 |
38.1 |
60 |
38.1 |
15.2 |
4 |
38.1 |
16.1 |
7 |
T-1810 |
25.4 |
18 |
25.4 |
41.2 |
4 |
50.8 |
14.0 |
8 |
T-3310 |
25.4 |
33 |
25.4 |
38.1 |
4 |
50.8 |
12.2 |
9 |
T-3810 |
25.4 |
38 |
25.4 |
38.1 |
4 |
61 |
11.2 |
10 |
T-3320 |
50.8 |
33 |
50.8 |
25.4 |
4 |
38.1 |
19.5 |
11 |
T-5020 |
50.8 |
50 |
50.8 |
25.4 |
4 |
50.8 |
15.2 |
Loading Table
FRP Pultruded Grating Loading Table
![FRP Pultruded Grating (3)](http://www.ntwellgrid.com/uploads/FRP-Pultruded-Grating-3.jpg)
![FRP Pultruded Grating (3)](http://www.ntwellgrid.com/uploads/FRP-Pultruded-Grating-3.jpg)
span |
Line load (kg/m) |
Recommended max. load |
Ultimate load |
||||
149 |
373 |
745 |
1148 |
1490 |
|||
457 |
0.36 |
0.86 |
1.72 |
2.58 |
3.45 |
1720 |
8600 |
610 |
0.79 |
1.94 |
3.89 |
5.81 |
7.75 |
1286 |
6430 |
914 |
2.41 |
6.01 |
-- |
-- |
-- |
840 |
4169 |
1219 |
5.38 |
13.60 |
-- |
-- |
-- |
602 |
3010 |
span |
Uniform load (kg/m2) |
Recommended max. load |
Ultimate load |
||||
488 |
1220 |
2440 |
3660 |
4880 |
|||
457 |
0.32 |
0.98 |
1.62 |
2.26 |
3.25 |
7520 |
37620 |
610 |
0.99 |
2.28 |
4.86 |
6.80 |
9.70 |
4220 |
21090 |
914 |
4.51 |
-- |
-- |
-- |
-- |
1830 |
9160 |
1219 |
-- |
-- |
-- |
-- |
-- |
-- |
-- |
span |
Line load (kg/m) |
Recommended max. load |
Ultimate load |
||||
149 |
373 |
745 |
1148 |
1490 |
|||
457 |
-- |
-- |
2.54 |
3.59 |
4.80 |
2760 |
13800 |
610 |
-- |
1.90 |
4.08 |
6.05 |
8.15 |
2150 |
10760 |
914 |
2.25 |
5.71 |
11.70 |
17.50 |
23.25 |
1436 |
7180 |
1219 |
5.05 |
12.70 |
25.60 |
38.20 |
50.98 |
1070 |
5368 |
span |
Uniform load (kg/m2) |
Recommended max. load |
Ultimate load |
||||
488 |
1220 |
2440 |
3660 |
4880 |
|||
457 |
0.50 |
1.60 |
2.65 |
3.80 |
4.57 |
12100 |
60520 |
610 |
1.26 |
3.13 |
5.30 |
7.37 |
10.40 |
7080 |
35430 |
914 |
4.56 |
13.10 |
-- |
-- |
-- |
3140 |
15716 |
1219 |
13.68 |
-- |
-- |
-- |
-- |
1760 |
8809 |
span |
Line load (kg/m) |
Recommended max. load |
Ultimate load |
||||
149 |
373 |
745 |
1148 |
1490 |
|||
457 |
-- |
0.50 |
0.99 |
1.50 |
1.75 |
4370 |
21856 |
610 |
0.26 |
0.89 |
1.50 |
2.30 |
3.28 |
3280 |
16400 |
914 |
0.74 |
1.90 |
3.80 |
5.55 |
7.60 |
2116 |
10580 |
1219 |
1.76 |
4.18 |
8.36 |
12.46 |
16.48 |
1514 |
7570 |
span |
Uniform load (kg/m2) |
Recommended max. load |
Ultimate load |
||||
488 |
1220 |
2440 |
3660 |
4880 |
|||
457 |
0.25 |
0.64 |
1.02 |
1.40 |
2.00 |
19100 |
95560 |
610 |
0.5 |
1.27 |
2.18 |
2.94 |
4.04 |
10780 |
53900 |
914 |
1.78 |
4.56 |
7.66 |
10.68 |
15.20 |
4630 |
23168 |
1219 |
4.56 |
12.60 |
-- |
-- |
-- |
2490 |
12460 |
span |
Line load (kg/m) |
Recommended max. load |
Ultimate load |
||||
149 |
373 |
745 |
1148 |
1490 |
|||
457 |
-- |
-- |
-- |
-- |
-- |
-- |
-- |
610 |
-- |
-- |
0.51 |
0.74 |
1.06 |
3375 |
16876 |
914 |
-- |
0.62 |
1.28 |
1.76 |
2.30 |
1500 |
7498 |
1219 |
0.49 |
1.27 |
2.26 |
3.52 |
4.82 |
845 |
4228 |
span |
Uniform load (kg/m2) |
Recommended max. load |
Ultimate load |
||||
488 |
976 |
2440 |
3660 |
4880 |
|||
457 |
-- |
-- |
-- |
-- |
-- |
-- |
-- |
610 |
-- |
0.38 |
0.50 |
0.64 |
1.000 |
11080 |
55400 |
914 |
0.52 |
1.16 |
1.90 |
2.68 |
3.80 |
7380 |
36900 |
1219 |
1.28 |
3.40 |
5.70 |
8.12 |
11.66 |
5570 |
27861 |
Notes: 1, Safety factor is 5; 2, Ultimate load is the grating break load; 3, This table is only for information, resins and grating surfaces influence the grating loading property. |
FRP Pultruded Grating Surface
Real |
Surface |
Service |
Corrugated surface (No grit) |
Anti-skid, easy clean |
|
Grit surface |
Anti-skid and good abrasion (The grit could be fine, middle and coarse) |
|
Smooth surface |
Free clean, contaminant non stay |
|
Chequer cover surface |
Anti-skid, easy clean, odour isolation |
|
Grit cover surface |
Anti-skid, good abrasion (The grit could be fine, middle and coarse), odour isolation |
Standard Resin Systems
ONFR |
Polyester resin system, Good corrosion resistance, Non fire resistance; |
OFR |
Polyester resin system, Good corrosion resistance, Fire resistance ASTM E-84 Class 1; |
ISOFR |
Premium grade Isophthalic Polyester resin system, excellent corrosion resistance, Fire resistance ASTM E-84 Class 1; |
VEFR |
Vinyl Ester resin system, Maximum corrosion resistance, Fire resistance ASTM E-84 Class 1; |
PHE |
Phenolic resin system, High temperature service, Low flame spread index, low smoke developed index and low toxicity. |
Chemical Properties
FRP Pultruded Grating Chemical Properties Guide:
Chemicals |
Concentration |
Maximum service temperature |
||
Vinyl ester resin |
Iso resin |
Ortho resin |
||
Acetic acid |
50 |
82 |
30 |
20 |
Chromic acid |
20 |
38 |
No |
No |
Nitric acid |
5 |
70 |
48 |
25 |
Phosphoric acid |
85 |
100 |
65 |
No |
Sulfuric acid |
25 |
100 |
52 |
20 |
Hydrochloric acid |
<10 |
100 |
52 |
No |
20 |
90 |
38 |
No |
|
37 |
65 |
No |
No |
|
Hydrotropic acid |
25 |
93 |
38 |
No |
Lactic acid |
100 |
100 |
52 |
40 |
Benzoic acid |
All |
100 |
65 |
------ |
Aluminum hydroxide |
All |
82 |
45 |
No |
Aqueous ammonia |
28 |
52 |
30 |
No |
Sodium hydroxide |
10 |
65 |
20 |
No |
25 |
65 |
No |
No |
|
50 |
70 |
No |
No |
|
Ammonium sulfate |
All |
100 |
60 |
50 |
Ammonium chloride |
All |
100 |
82 |
60 |
Ammonium bicarbonate |
All |
52 |
No |
No |
Copper chloride |
All |
100 |
65 |
60 |
Copper cyanide |
All |
100 |
No |
No |
Ferric chloride |
All |
100 |
65 |
60 |
Ferrous chloride |
All |
100 |
60 |
50 |
Manganese sulfate |
All |
100 |
65 |
45 |
Sodium cyanide |
All |
100 |
------ |
------ |
Potassium nitrate |
All |
100 |
65 |
40 |
Zinc sulfate |
All |
100 |
65 |
45 |
potassium nitrate |
100 |
100 |
65 |
40 |
Potassium dichromate |
100 |
100 |
60 |
40 |
Ethylene glycol |
100 |
100 |
65 |
40 |
Propylene glycol |
100 |
100 |
65 |
40 |
Gasoline |
100 |
80 |
60 |
35 |
Glucose |
100 |
100 |
38 |
No |
Glycerin |
100 |
100 |
65 |
60 |
Hydrogen peroxide |
30 |
38 |
--- |
--- |
Dry chlorine gas |
100 |
82 |
38 |
No |
Wet chlorine gas |
All |
82 |
No |
No |
Vinegar |
100 |
100 |
65 |
30 |
Distilled water |
100 |
93 |
60 |
25 |
fresh water |
100 |
100 |
70 |
40 |
Note: the “All” in concentration column refers to the chemical is saturated in water; and the “100” refers to pure chemicals. |
![FRP Pultruded Grating (9)](http://www.ntwellgrid.com/uploads/FRP-Pultruded-Grating-9.jpg)
![FRP Pultruded Grating (10)](http://www.ntwellgrid.com/uploads/FRP-Pultruded-Grating-10.jpg)
![FRP Pultruded Grating (11)](http://www.ntwellgrid.com/uploads/FRP-Pultruded-Grating-11.jpg)