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Specifications

Name: DVN Pneumatic valve
DVN SERIER

Low Pressure Pneumatic Diaphragm Valve
Specifications

• Reduced inner capacity
• Electropolished , D.I. water cleaned , assembled ,tested and packaged in certified clean room.
• Minimal contributions of Moisture, Oxygen and Hydrocarbon.
• Permanently heat code laser marked; Material traceable to original mill certificate of test.
• Hastelloy®C-22™ and custom configurations available upon request.

DVN Series: pneumatic valve; diaphragm valves; gas flow meter; manual valve; dual actuator valve  
 
ow Pressure Pneumatic Diaphragm Valve
Specifications
 
• Reduced inner capacity
• Electropolished , D.I. water cleaned , assembled ,tested and packaged in certified clean room.
• Minimal contributions of Moisture, Oxygen and Hydrocarbon.
• Permanently heat code laser marked; Material traceable to original mill certificate of test.
• Hastelloy®C-22™ and custom configurations available upon request.
Size 1/4" 3/8",1/2" 3/4"
Cv Value 0.3 0.7 -0.7
Orifice Size 4.5mm 7.8mm 7.8mm
Max. Working Pressure(G.) 1Mpa
Operating Pressure(G.) 0.4~0.7Mpa
Max.Working Temp. PCTFE:-10℃~65℃/PFA:-10℃~120℃/PI:-10℃~150℃
Internal Leakage Allowance(He) 1x10-10Pa.M3/S
Test Pressure ≦1x10-2Torr
Holding Time ≧15 sec
External Leakage Allowance(He) 1x10-10Pa.M3/S
Test Pressure ≦1x10-2Torr
Holding Time ≧1 min
Particle Inspection(EP only) No count
Pressure:60~80psi N2 Gas
Sample Volume:1CMF
0.1μm and Larger
 
 
Product Grade AP BA EP
Inner Ry≦25μm Ry≦25μm Ry≦25μm
10μinch RA(Avg.) 5μinch RA(Avg.)
Surface Cut off length:2.5mm Cut off length:0.8mm Cut off length:0.25mm
Roughness Measuring Length:12.5mm Measuring Length:4mm Measuring Length:1.25mm
Polishing Machining Finish Machining Finish Electro Polishing Finish
 
Order Information                  
DVN Code Material Type
 
S SUS316L Single Melt(Standard Type)
  D SUS316L Double Melt
  4S SUS304
 
 
Code Size Type
    4 1/4"(Standard Type)
    6 3/8"
    8 1/2"
   
12
3/4"
      Code Connection Type
      SW Lok(Standard Type)
      VM MFS Male
      VF MFS Female
      TW Butt Weld
     
 
Code Operation Method Type
        C Normally Close(Standard Type)
        O Normally Open
       
 
Code Option
          x47 Constant Bleed φ0.3(Standard Type)
          x59 Constant Bleed φ0.6
         
 
Code Grade Type
            B BA Grade
            P EP Grade
            A AP Grade
           
 
Code Logo
              F FGT Logo(Standard Type)
              C Customer Logo
             
 
     
DVN               Complete Ordering Code
                     
*Note:Using customer Logo launch to more than 1000 united for  one year