Butterfly valve for fire signal

Main technical parameters of butterfly valve for fire signal model XD371X-10/16/25Q/C Nominal pressure (PN) 10 16 25 Sealing test (MPA) 1.1 1.76 2.75 Shell pressure (MPA) 1.5 2.4 3.75 Applicable temperature（≤℃） 80 Applicable media water Material of main parts of fire signal double clip butterfly valve Part name Material Science valve body Ductile iron / cast steel Disc Ductile iron / stainless steel seal ring rubber Stem stainless steel Main external connection dimensions of butterfly valve for fire signal                                                             Company：mm DN L PN10 PN16 PN25 H H1 D1 Z-Φd D1 Z-Φd D1 Z-Φd 50 43 125 4-18 125 4-18 125 4-18 160 80 65 46 145 4-18 145 4-18 145 4-18 175 88 80 46 160 4-18 160 4-18 160 4-18 180 96 100 52 180 4-18 180 4-18 190 4-22 200 115 125 56 210 4-18 210 4-18 220 4-26 213 128 150 56 240 4-22 240 4-22 250 4-26 225 140 200 60 295 4-22 295 4-22 310 4-M24 260 175 250 68 350 4-22 355 4-26 370 4-M27 290 202 300 78 400 4-22 410 4-26 430 4-M27 330 242 350 78 460 4-22 470 4-26 490 4-M30 415 308 400 102 515 4-26 525 4-30 550 4-M33 460 348