Product Introduction
Fire Signal Resilient Seated Gate Valve are used in automatic spraying water pipeline in fire protection system to monitor the water supply pipeline and indicate the valve’s opening at a long distance.
Features
Nominal pressure: 1.0-2.5MPa
Working temp.:0-120℃
Flanged end: GB/T17241.6 GB9113, ASME 16.5 etc.
Nominal diameter: 50-400mm
Medium: water, oils, gas etc.
Inspection and test: GB 13927 API 598
Materials
|
No.
|
Part Name
|
Material
|
|
1
|
Transmission cap
|
ductile cast iron, cast steel
|
|
2
|
Hand wheel
|
Ductile iron
|
|
3
|
Dust proof gasket
|
Plastic
|
|
4
|
Gasket
|
Buna-N rubber or EPDM
|
|
5
|
Thrust bearing
|
Gun metals
|
|
6
|
Cover
|
Grey cast iron, ductile cast iron, cast steel
|
|
7
|
Bolt
|
Carbon steel or stainless steel
|
|
8
|
Body
|
Grey cast iron, ductile cast iron, cast steel
|
|
9
|
Copper nut
|
Gun metals
|
|
10
|
Stem
|
Stainless steel
|
|
11
|
Disc
|
Ductile cast iron packed with rubber or EPDM outside
|
Dimensions
|
DN
|
50
|
65
|
80
|
100
|
125
|
150
|
200
|
250
|
300
|
350
|
400
|
|
L
|
178
|
190
|
203
|
229
|
254
|
267
|
292
|
330
|
356
|
381
|
406
|
|
Ball Valve 
