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800X pressure differential by-pass valve
Inputtime:2015-01-13 15:23:32   Hits:


Purpose:
Mainly applied in the air-conditioning system to keep the pressure difference between the water pipeline so as to enhance the systematic efficacy and guarantee safety.
Characteristics
Easily installed and debugged,once being well debugged,automatic control can be done at once.both valve sensor and complicated driving and executing mechanisms are omitted,making the repair easier and any fault uneasily occurring.
Principle:
The two control pipes of the pilot valve are linked to the high pressure source (water supply pipe) and the low pressure one(back-water pipe) separately and,when the high and low pressure difference is over the set value,the pilot valve is opened and the main valve is followed to open,some water flows back to the back-water pipe directly via ZF800X. When the said pressure difference gets reset,ZF800X will be closed automatically.
Materials of major parts:
Name of parts Material of parts
Body & cap Ductile iron
Valve seat & valve disc Brass
Valve stem Stainless steel
Spring Stainless steel
               Surface EPOXY
Valve sealing EPDM/NBR
 
Performance specification:
Normal pressure (Mpa) Body test pressure
(Mpa)
Sealing test pressure
(Mpa)
Applicable medium Applicable temperature
(°C)
1.0 1.5 1.1 water  
0~80
1.6 2.4 1.76
2.5 3.75 2.75
 
 Main size:
DN 50 65 80 100 125 150 200 250 300 350 400 450 500 600
L 215 220 250 290 310 360 430 510 595 630 630 780 900 1100
H 225 300 320 420 450 500 710 770 905 970 1000 780 890 1060

Typical installation drawing:


Links:
 
Boutou shengfeng Auto-control Valve Co.,ltd
 
Phone:+(86)15028602799    
            +(86)17731781710
e-mail:sf.valve@163.com          
           fvalve@163.com
facebook: sf.valve@163.com
 Websit:chinagatevalves.com
 add:Botou Industry Park,Cangzhou
 City,Hebei Province ,China