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Product Introduction |
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Fire Prevention Butterfly Valve |
| Beijing Dayu Holy Valve co., Ltd, manufacturing signal Butterfly Valve for fire prevention and prevention Butterfly Valve. It takes the lead in according with GB5135.6-2003<<AUTOMATICALLY ARTESIAN AND PUT OUT SYSTERM NOPART SIX: VAVLE CURRENCY TECHNIQUE CONDITION>>in domestic. The products successfully pass model testing of police fire protection product testing center, which has put in police fire protection product network, specially for fire prevention and control of high building, for high performance, fire reliability and long life. |
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valve
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Nominal Diameter |
DN 50mm -DN 200mm or (2'-8') |
rating nominal pressure |
1.2MPa |
Testing pressure |
Shell |
4.8MPa |
Sealing |
2.4MPa |
Medium Temperature |
-20 ¡æ ¡« 120 ¡æ |
Applicable medium |
Fresh water |
water power scrape testing |
£¼ 0.02MPa |
signal device |
working temperature |
-10 ¡æ ¡« 55 ¡æ |
over loading ability |
24mA |
Anti-pressure ability |
1000V |
Isolation Resistance |
500V¡À50V £¬
> 50M ¦¸ (when testing pressure is 500 V ¡À 50V,isolation resistance is over 50M ¦¸ |
Contact Resistance |
£¼ 0.015¦¸ |
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The patent certificate of one mew type fire protection signal Butterfly Valve
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