Product Name: YQ98007-LS20007-type filter control valve piston height of water level 
 Category: 9800 filter control valve piston 
 Specifications: YQ98007-16Q, 25Q 
 Product Diameter: 40-300mm 
 Product pressure: 1.6-2.5MPa 
 Views: 236 
 Input time: 2008-12-29 
 Page Keywords: YQ98007 filter height of water level control valve piston 
 I. Overview: 

 The valves use the water tank (water tower) to set the low water level difference between the static pressure head, through the pilot valve to control the water level sensor main valve piston moves up and down start to reach the main valve of the valve. When the tank's water level to rise to the set high water level, the main valve closed, to stop water supply to the tank; when the tank fell to the low water level, the main valve is opened, the tank water supply. The water level by adjusting the height adjustment screw pilot valve can be set high and low water level. 

 This valve is widely used in building water supply, fire fighting, industrial and mining enterprises on the pool, water tower, water tank level control valves instead of the past, without float (float power) and electrical control, purely mechanical hydraulic control, safe and reliable. 



 Second, characteristics: 

 1, the purely mechanical hydraulic operation, cancel the float (float power) and electrical control, water level control to overcome the past shortcomings of frequent opening and closing valves, the use of the pool water level changes, the difference between static pressure head, control the main valve opening and closing, control security , reliable and accurate. 
 2, the valve must be installed outside the pool for easy adjustment and maintenance operations to avoid the risk of entering the pool. 
 3, Y-shaped wide-body valve chamber, small flow resistance, strong anti-cavitation, no noise. 
 4, comes with filters, reducing the installation size of about 40% less space, simple installation, easy maintenance, saving the cost of investment. 
 5, internal and external surfaces are sprayed green coating, anti-corrosion and to ensure product safety. 

 If used in sea water must be marked when the loans provided. 
 Main technical parameters and the main part materials: 
 Nominal pressure PN (MPa) 1.6 2.5 
 Nominal diameter DN (mm) 40 50 65 80 100 150 200 250 300 
 Strength test pressure (MPa) 2.40 3.75 
 Sealing test pressure (MPa) 1.76 2.75 
 Temperature 0 ~ 100 ℃ for 
 Ambient temperature -30 ~ 350 ℃ 
 For medium water