【Usage】 
 J41H, J41Y, J41W national standard cut-off valves open and close the valve parts is cylindrical, flat or cone appear before sealing, the valve along the centerline of the fluid in a straight line. National standard valve only applies to fully open and fully closed, generally not used to regulate flow, to allow time for adjustment and custom cutting. 

 [Features] 
 1, simple structure, manufacture and maintenance more convenient 
 2, the working stroke is small, open and close a short time 
 3, sealing, and sealing surface between the friction force is small, longer life expectancy 

 [Executive standard] 
 Design specifications: GB / T 12235 
 Structure Length: GB / T 12221 
 Flange connection: JB / T 79 
 Test and inspection: JB / T 9002 
 Product ID: GB / T 12220 
 Supply specifications: JB / T 7928 

 [Specifications] 
 Model J41H-16C ~ 160C J41Y-16C ~ 160C J41W-16P ~ 160P 
 Working pressure (MPa) 1.6 ~ 16.0 
 Temperature (℃) ≤ 425 ≤ 150 
 Medium water, steam, oil weak corrosive media 
 Material body, bonnet carbon steel chrome-nickel stainless steel titanium 
 Chrome-nickel-chromium stainless steel stem stainless steel titanium 
 Sealing surface of iron-based alloy hardfacing welding hard alloy body material 
 Graphite asbestos packing, flexible graphite, PTFE