Wafer Type Hard Seal Signal Butterfly Valve
Wafer type hard seal signal butterfly valve
Worm gear drive wafer type eccentric fire signal butterfly valve
【Use and Features】
The signal butterfly valve is designed with an eccentric butterfly plate. A cam mechanism is set at the end of the shaft to contact the switch signal. It can effectively provide signals for opening and closing the valve. It can also output signals to connect sound and light facilities and provide sound and light signals. It is generally used for fire protection facilities. For supporting use.
Flange connection dimensions: GB/T9113.1-2000; GB/T9115.1-2000; JB78
【The main technical parameters】
| Nominal diameter | DN(mm) | 50～200 | ||
| Nominal pressure | PN(MPa) | 0.6 | 1.0 | 1.6 |
| test pressure | Strength test | 0.9 | 1.5 | 2.4 |
| Sealing test | 0.66 | 1.1 | 1.76 | |
| Applicable media | Water, sea water, oil, etc. | |||
| proper temperature | ≤125℃ | |||
[Main parts materials]
| Part Name | Material |
| valve body | cast iron, cast steel |
| butterfly plate | Cast steel (surface treatment), cast iron (surface treatment) |
| sealing ring | NBR, fluorine rubber |
| Stem | 2Cr13 |
| filler | Fluorine plastic, flexible graphite |
size
| Nominal diameter | Structure length (standard value) |
Dimensions (Reference) |
Connection size (standard value) | reference weight (kg) |
|||||||
| 1.6MPa | |||||||||||
| mm | ich | L | H | H0 | A | B | D0 | D | D1 | n-d | |
| 50 | 2 | 43 | 102 | 362 | 200 | 200 | 160 | 165 | 125 | 4-14 | 15 |
| 65 | 21/2 | 46 | 112 | 382 | 200 | 200 | 160 | 185 | 145 | 4-14 | 17 |
| 80 | 3 | 49 | 120 | 400 | 200 | 200 | 160 | 200 | 160 | 8-18 | 19.5 |
| 100 | 4 | 56 | 137 | 434 | 200 | 200 | 160 | 220 | 180 | 8-18 | 23 |
| 125 | 5 | 64 | 162 | 480 | 200 | 200 | 160 | 250 | 210 | 8-18 | 28 |
| 150 | 6 | 70 | 174 | 550 | 280 | 280 | 240 | 285 | 240 | 8-22 | 48 |
| 200 | 8 | 71 | 207 | 615 | 280 | 280 | 240 | 340 | 295 | 12-22 | 53 |
| 250 | 10 | 76 | 242 | 694 | 280 | 280 | 240 | 405 | 355 | 12-26 | 94 |
| 300 | 12 | 83 | 284 | 829 | 420 | 520 | 350 | 460 | 410 | 12-26 | 124 |
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