The standard options for flange connectors are ISO-KF and ISO-K. A visual position indication comes as standard although an electrical indicator can be added as an option. The valve can be controlled by a solenoid valve either “on board” or in a distant location if required. The VYSS-G can be used in different temperature regimes depending on the sealing elastomer chosen. The valve can be supplied as normally opened (NO), normally closed (NC) or double acting. In addition to these standard options further customization is possible.
|
SIZES |
|
DN16 to 50mm |
|
ACTUATOR |
Pneumatic |
Single acting with NC or NO spring |
|
|
Manual |
With Removable Handwheel |
|
BODY MATERIAL |
|
Aluminum or Stainless Steel |
|
FEEDTHROUGH |
|
Shaft feedthrough |
|
LEAK RATE |
Valve Body |
< 1 × 10-9 mbar l/s |
|
|
Valve Seat |
< 1 × 10-9 mbar l/s |
|
PRESSURE RANGE |
|
1 × 10-7 mbar to 2 bar (abs) |
|
DIFFERENTIAL PRESSURE |
In Opening Direction |
≤ 1.2bar Max. |
|
|
In Closing Direction |
≤ 4bar Max. |
|
DIFFERENTIAL PRESSURE ON THE PLATE |
|
≤ 1bar |
|
CYCLES UNTIL FIRST SERVICE |
|
≥ 1,000,000 |
|
TEMPERATURE |
Valve Body |
≤ 120 °C |
|
|
Actuator |
≤ 60 °C |
|
MATERIAL |
Valve Body, Plate |
AlSI 304 (1.4301) |
|
|
Shaft |
AlSI 304 (1.4301) |
|
|
Bellows |
NA |
|
SEAL |
Bonnet |
FKM (Viton®) or on request |
|
|
Gate |
FKM (Viton®) or on request |
|
MOUNTING POSITION |
|
Any |
|
SOLENOID VALVE |
|
24 VDC, 2.5 W (others on request) |
|
POSITION INDICATOR: CONTACT RATING |
Voltage |
≤ 24 VDC |
|
|
Current |
0-50 mA |
|
VALVE POSITION INDICATION |
|
Visual LED Lamp |