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Main parts of fire signal butterfly valve:

serial number Part Name material serial number Part Name material
1 valve body Ductile iron, cast steel 7 sealing ring NBR.EPDM
2 valve shaft SUS410/SUS316 8 round gasket SUS316/brass
3 Butterfly Ductile iron spray , stainless steel 9 open loop SUS316/brass
4 valve seat EPDM, PTFE 10 retaining ring spring steel
6 bushing Bronze, PTFE

[Standard parameters]

design standards GB/T12238-2008
Structure length GB/T12221-2005
connection standard GB/T 79.1-1994
pressure test GB/T13927-2008

[Adapted to working conditions]

Now in petrochemical, gas equipment, nuclear industry, power equipment, environmental protection water treatment, HVAC, iron and steel metallurgy, industrial kilns, canning equipment, brewing equipment, drying equipment, vacuum equipment, surface treatment, biopharmaceuticals, food machinery , textile printing and dyeing, papermaking and other industries have been widely used.

Main dimensions and weight (PN1.0/1.6MPa)

Fire Signal Butterfly Valve-structure

DN( mm) A B C D1 L n-Φ K E 4-Φ1 Φ2 G Weight WT (kg)
50 140 80 43 125 32 4-19 77 57.15 4-6.7 12.6 100 3.34
65 152 89 46 145 32 4-19 77 57.15 4-.67 12.6 120 3.94
80 159 95 45.21 160 32 8-19 77 57.15 4-.67 12.6 127 4.05
100 178 114 52.07 180 32 8-19 92 69.85 4-10.3 15.77 156 5.48
125 190 127 55.5 210 32 8-19 92 69.85 4-10.3 18.92 190 7.66
150 203 139 55.75 240 32 8-23 92 69.85 4-10.3 18.92 212 8.5
200 238 175 60.58 295 45 8-23 115 88.9 4-14.3 22.1 268 25
250 268 203 68 350 45 12-23 115 88.9 4-14.3 28.45 325 31.4
300 306 242 76.9 400 45 12-23 140 107.95 4-14.3 31.6 403 45.9
350 368 267 76.17 460 45 16-23 140 107.95 4-14.3 31.6 436 54