Product Name: YQ980011-LS20011 piston-type flow control valve filter 
 Category: 9800 filter control valve piston 
 Specifications: YQ980011 - 16Q, 25Q 
 Product Diameter: 40-300mm 
 Product pressure: 1.6-2.5MPa 
 Views: 234 
 Input time: 2008-12-29 
 Page Keywords: YQ980011 filter flow control valve piston 
 I. Overview: 
 YQ980011 - 16Q-type filter piston valve is a stable flow of traffic in the controlled setting of the valve. This stability does not love the valve before the water system flow and pressure change. However, when the valve before the flow is less than set value , the main valve fully open, will not increase traffic. 
 Hosted by the pass than the pressure signal to the flow conductance valve, excess flow valve and control valve controls the implementation of two. To control the main valve piston chamber pressure. By limiting conductance regulator valve to adjust the stack of suppository. To achieve the set flow valve value; Piston cavity orifice and downstream connected. can be red ribbon closure of the valve, main valve is a pressure difference across the valve Kai. closed the drive energy. 
 Mainly used for air conditioning. To the drainage. Fire and various types of industrial and mining enterprises and other water supply network ports need to filter traffic and to achieve control of the place and conditions. 

 Second, characteristics: 
 1. Pitot very sensitive to the limiting pilot valve delivery pressure signal, no throttle plate orifice, no pressure loss, energy saving. 
 2. Limiting pilot valve has a very sensitive spring to regulate the traffic, simple and accurate. 
 Wide-body-shaped valve chamber, small flow resistance. Cavitation resistance is strong. 
 Pressure on the media's own self-control, no external source for the driver. 
 5. The main body of the inlet flange and the valve seat located between the filter, reduce investment costs and installation costs. 
 6. Kuai environment both inside and outside surfaces are sprayed coating. To ensure that government anti-corrosion products, and safety. 



 If used in sea water indicate when ordering. 


 1. Pitot 2. Ball 3. Filter 4. Main valve 5. Needle 6. Opening position indicator 7. Pilot valve 8. Valve read 



 III. The main technical parameters and the main part materials: 
 1. Main technical parameters: 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 
 Seal Test Pressure: (MPa) 1.76 2.75 
 Flow adjustment range 05 ~ 5m / S 
 Temperature 0 ~ 100 ℃ for 
 Ambient temperature -30 ~ 350 ℃ 
 For medium water