Model 321A
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| Size | DN | Pipe OD (mm) | Max working pressure (PSI) | A (mm) | B (mm) | C (mm) | D (mm) | E (mm) | Housing bolts | Flange bolts (No.-Size) | Certificate |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 2" | DN50 | 60.3 | 300 | 206 | 19 | 152 | 121 | 57.5 | 2-M10X50 | 4-5/8 | UL |
| 2-1/2" | DN65 | 73.0 | 300 | 230 | 19 | 178 | 140 | 69.8 | 2-M10X50 | 4-5/8 | UL |
| 2-1/2" | DN65 | 76.1 | 300 | 230 | 19 | 178 | 140 | 72.7 | 2-M10X50 | 4-5/8 | — |
| 3" | DN80 | 88.9 | 300 | 246 | 19 | 191 | 152 | 85.5 | 2-M10X50 | 4-5/8 | UL |
| 4" | DN100 | 114.3 | 300 | 280 | 19 | 229 | 191 | 110.5 | 2-M12X55 | 8-5/8 | UL |
| 5" | DN125 | 141.3 | 250 | 320 | 22 | 254 | 216 | 137.4 | 2-M12X65 | 8-3/4 | UL |
| 6" | DN150 | 168.3 | 300 | 346 | 24 | 280 | 241.3 | 164.3 | 2-M12X65 | 8-3/4 | — |
| 8" | DN200 | 219.1 | 250 | 414.3 | 30 | 341.4 | 298.5 | 214.9 | 2-3/8X70 / 2-M10X70 | 8-3/4 | UL |
| 10" | DN250 | 273.0 | 250 | 481.2 | 30.3 | 405.6 | 361.95 | 268.9 | 2-3/8X70 / 2-M10X70 | 12-7/8 | UL |
| 12" | DN300 | 323.9 | 250 | 553.3 | 30.4 | 482.6 | 431.8 | 318.9 | 2-3/8X70 / 2-M10X70 | 12-7/8 | UL |
| 14" | DN350 | 355.6 | 300 | 590 | 37 | 535 | 476.3 | 350.6 | — | 12-1 | UL |
| 16" | DN400 | 406.4 | 300 | 650 | 37 | 595 | 539.8 | 401.5 | — | 16-1 | — |
| 18" | DN450 | 457.2 | 300 | 690 | 40 | 635 | 577.8 | 452.2 | — | 16-1-1/8 | — |
| 20" | DN500 | 508.0 | 300 | 765 | 43 | 700 | 635 | 503 | — | 20-1-1/8 | — |
| 24" | DN600 | 609.6 | 300 | 875 | 49 | 815 | 749.3 | 601.6 | — | 20-1-1/4 | — |
Ductile iron grooved piping system is reliable and is faster to install than welding, threading or flanging, resulting in lowest installed cost. It can be adopted to suit standard pipe with cut grooves or standard and light wall pipe with rolled grooves. We are the exclusive agent of the MECH brand ductile iron grooved fittings which has the UL/FM certificates.
ANSI DI GROOVED FLANGE, FIG# 321A● Design Standard ISO6182, ASME B16.5, GB 5135.11
● Connection Standard ASME B36.10, ASTM A53-A53M, ISO 4200 ● Working Pressure American standard Class150
