Product Description 
 Italy MADAS (Mada Si) the MVB / 1 series is a new type of gas overpressure (undervoltage) cut off, manual reset valves. It can guarantee the user to set the upper limit (lower limit) to work within the pressure range is manufactured in accordance with the UNI-8827 criteria, and received the European CE certification and ISO9001 quality certification of gas equipment. 

 First, the technical parameters: 
 A maximum working pressure: overpressure cut off (1bar or 6bar), undervoltage lockout (500mbar); 

 2, Applicable medium: gas, natural gas, liquefied petroleum gas and other non-corrosive gas; 


 Material: die-casting aluminum alloy (in line with the UNI EN 1706 standard) 
 Brass (in accordance with the UNI EN 12 164 standard) 
 Stainless steel (in accordance with the UNI to EN 10088 standard) 
 NBR rubber (in accordance with the UNI 7702 standard) 

 4, connection: thread interface (DN20-DN50) the ISO7 / 1 standard flange interface (DN65-DN150) in line with ISO7005 standards; 


 5 to adapt to temperature: -15 ℃ - + 60 ° C; 


 6, the pressure setting range: overpressure: 30 - 45mbar (standard) according to the user can configure 
 Undervoltage :8-22mbar (standard) according to the needs of the user can configure; 


 Closing time: <1 sec; 


 8 Nominal pressure: PN16. 


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