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异径接头(大小头)尺寸参数异径接头尺寸 (mm) (GB12459
GB/T13401)(SH3408 SH3409)Size of Template joints(mm) (GB12459
GB/T13401)(SH3408 SH3409)公称通径 NominalDia
DN25×2025×1532×2532×2032×1540×3240×2540×2050×4050×3250×2565×5065×406
5×3280×6580×5080×40100×80100×65100×50125×100125×80125×60150×125150×1
00150×80200×150200×125D1D2长度 Lenght公称通径 NominalDia
DN500×350550×550×× 400600×500600×× 400650×600650×× 450700×600700