Advance Electric-Products-FV Series

Connection

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It is careful in the detail,and a thorough rationality design.

 The improvement of a basic function is aimed at.

 Particle elimination from DIW supply has been a significant challenge.

 The FV series contributes to a less particle enviornment for the cleaning process.

 

 

Unique slight leak mechanism that generates very few partclesUnique slight leak mechanism that generates very few partcles

 

The table below illustrates that very few particles are generated by the FV series. For standard trickle bypass valves, particles are generated due to vibration caused by valve shutoff.
Test Results Frequency
 Particle Size/Count
0.1-
0.2μ		 0.2-
0.5μ		 0.5-μ
Slight Leak Type FV Series
FV-7279-131P		 1 1 0 0
2 0 0 0
Standard Trickle Bypass Type Valve
AV-7279-131PW		 1 16 1 1
2 3 1 1
  1. Test valves are thoroughly flushed before test. 
  2. As illustrated in Fig. 1, test vavles are cycled 120 times (1 cycle: ON - 2.5 sec / OFF - 2.5 sec) under DIW flow, and particle sizes/counts are calculated.

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Flow Characteristics

 

FV-5000 series ; Large flow
Pressure drop VS Flow rate

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FV-7000 series ; Large flow
Pressure drop VS Flow rate

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FV-5000 series ; Small flow
Setter turns VS Flow rate

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FV-7000 series ; Small flow
Setter turns VS Flow rate

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 fv_12.gif 
Zero point: The adjustment point where fluid begins to flow on the downstream after 2.5kg/cm2 of pressure is applied from the upstream, while the valve is not actuated. Zero point: The adjustment point where fluid begins to flow on the downstream after 2.5kg/cm2 of pressure is applied from the upstream, while the valve is not actuated.