Siemens VGD20.503U Technische instructies - Pagina 8
Blader online of download pdf Technische instructies voor {categorie_naam} Siemens VGD20.503U. Siemens VGD20.503U 14 pagina's. Gas valves, for use with skpxx.xxxu series electro-hydraulic actuators
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Technical Instructions
Document Number CC1N7631us
November 08, 2017
Operation, continued
Page 8
Figure 2. Second view of VGD40.xxxU flange models
VGD40.xxxU double valves consist of two valves in series.
Each valve has a double seat to achieve high flow (see Figure 2).
Closing springs:
Each double seat uses one pair of springs. The spring forces act separately as closing
forces on the individual valve seats.
7631z53us/1215
Siemens AG Building Technologies Division
VGD Series Double Valves