Description: ANSI 150/300 / PN 16/401. The flange ends refers to ANSI B 16.5 & DIN 2501.Wall thickness: ANSI B 16.34.2. ANSI 150/300.3. PN 16.4. 1/2"~4" Investment casting.5. 4" and larger sand casting.6. Max working temperature 445℉.Specification : DN15 DN20 DN25 DN32 DN40 DN50 DN65 DN80 DN100 DN125 DN150 DN200 DN250 DN300NPS1/2" NPS3/4" NPS1" NPS1-1/4" NPS1-1/2" NPS2" NPS2-1/2" NPS 3" NPS4" NPS5" NPS6" NPS8" NPS10" NPS12"