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Fire signal butterfly valve
Model: XD371X
Nominal pressure: PN1.0 ~ 2.5Mpa
Nominal diameter: DN50 ~ 350mm
Working temperature: -10 ℃ -80 ℃
Suitable medium: water, oil, gas
design criteria: GB / T12238-2008
length of the structure: GB / T12221-2005
Connection standard: JB / T 79.1-1994
Pressure test: GB / T13927-2008

[Basic Information]

The special signal butterfly valve for fire protection is a medium-line type butterfly valve developed by introducing advanced foreign technology. The butterfly valve for special fire-fighting signal of BWSX center line has the advantages of simple structure, reliable sealing, light weight, long service life and convenient maintenance. It is widely used in plumbing, building fire and other systems of various pipes, especially in the fire pipeline. 
 
 Fire signal butterfly valve main parts:

Serial number
Part Name
Material
Serial number
Part Name
Material
1
Body
Ductile iron, cast steel
7
Sealing ring
NBR.EPDM
2
Valve shaft
SUS410 / SUS316
8
Round spacers
SUS316 / brass
3
Butterfly plate
Ductile iron spray, stainless steel
9
Open ring
SUS316 / brass
4
Seat
EPDM, PTEE
10
Ring
Spring steel
6
bushing
Bronze, Teflon


 [The main dimensions and weight] (PN1.0 / 1.6MPa)

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


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