BEIJING DAYU HOLY VALVE CO., LTD

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            |      ENGLISH    Company        |   products        |   Contact           Product Introduction   Butterfly Valve Check Valve Manual Operated Wedge Gate Valve Globe Valve Stainless Steel Ball Valve Ball Valve Strainer       Product Introduction 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.   

valve

  

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 ℃ ~ 120 ℃

Applicable medium

Fresh water

water power scrape testing

< 0.02MPa

signal device

working temperature

-10 ℃ ~ 55 ℃

over loading ability

24mA

Anti-pressure ability

1000V

Isolation Resistance

500V±50V ,
> 50M Ω (when testing pressure is 500 V ± 50V,isolation resistance is over 50M Ω

Contact Resistance

< 0.015Ω

  

  

  

The patent certificate of one mew type fire protection signal Butterfly Valve

  

  

  

  

   Copyright©BEIJING DAYU HOLY VALVE CO., LTD
Address:No.128 Yong Wai Street Chongwen District Beijing   Postal Code:100075
Tel:010-67223388 Fax:86-10-67235888   E-mail:lzgdyhl@163.com Web:http://www.dyhl.com.cn
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