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2-PORT FLANGED SEAT VALVES PN 25 (1 ... 120 °C), PN 20 (120 ... 200 °C)

VE 2..

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APPLICATION

Control valves for plants with:

  • hot or superheated water max. 200 °C.

  • steam max. 6 bar.

With temperature above 150 °C use the actuator spacer ADS E12.

FEATURES

  • Body in cast iron GGG 40.3.

  • Spindle, seat and plug in stainless steel.

  • Flanged unions PN 25 (ISO 7005/2).

  • Flanged unionsEqual percentage control.

  • Control ratio 50 : 1.

  • Let by: 0.05% Kvs.

Code   DN mm Kvs (1) m3/h Run  mm. Suitable actuator Data sheet
CLF 16.

11 s/mm

 CLF 04.

3 s/mm

 CEF D16. (5)

11 s/mm
          bar (2) s (3) bar (2) s (3) bar (2) bar (4) s (3)  
VE 225   25 10 7 10 77 8 21 6 6 77 M 952
VE 232   32 16 10 9 110 6 30 6 6 110
VE 239   40 20 10 6 110 6 30 6 6 110
VE 248   50 25 10 6 110 6 30 6 6 110

  • (1) : Kvs ­ Flow coefficient: Flow in m3/h with valve open and pressure drop of 100 kPa. - 100 kPa = 10 mWG = 1 bar 

  • (2) : bar ­ Maximum pressure differential (∆p max) with hot or superheated water permitted by actuator.

  • (3) : s ­ Time (seconds) necessary for actuator to make the complete valve run.

  • (4) : bar ­ Maximum pressure differential (∆p max) with steam permitted by actuator.

  • (5) : actuator with emergency closure.

ACCESSORIES
Code   Description
ADS E12  

Actuator spacer (12 cm.) for VE ... valves with temperature > 150 °C

 

PRESSURE DROP IN VE 2.. SEAT VALVES