Type Size

Minimum flow
(§©/h)

Operating flow
(§©/h)

Proper flow for good operation
(§©/h)

Maximum flow
(§©/h)
TWD-80 80mm 0.7875 0.35 3~54 70
TWD-100 100mm 1.0 0.5 3~90 110
TWD-150 150mm 3.125 1.5 5~22 270
TWD-200 200mm 4.0 2.0 5.5~360 430
TWD-250 250mm 10.0 6 14~580 680
 
Type Size
(mm)

Length(mm)

 Flange (KS 4039)

Minimum indicatable level
(L)

Maximum indicatable level
(§©)

Weight
(kg)
L H Size Bolt Hole
DO Dc d n
NWD-80 80 206 170 200 160 19 4 1 999.999 17
NWD-100 100 241 175 220 180 19 8 1 999.999 21
NWD-150 150 300 190 285 240 23 8 10 9.999.999 45
NWD-200 200 350 195 365 295 23 12 10 9.999.999 49
NWD-250 250 450 245 390 370 23 12 10 9.999.999 51