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ALLOWANCES IN WELDED GRATING SP AND PRESSED GRATING P SIZES

Extracts from RAL GZ 638
Variation in plane within a grating
Maximum allowance 5 mmfor gratings ~ 300 х 300 mm – maximum 2 mm


Maximum difference between diagonals:
D1-D2 is equal to 0.012 х S (max. side length)
 Length and width variation с:
f = max. + 0 mm up to - 4 mm.

Cell step allowance:
g = max. ± 1.5 mm.

Cell step allowance:
d = max. ± 4 mm (when more than 10 steps are measured).

Process cut:
h; i = max. + 8 mm / - 0 mm.