The VLAS VLBS-G HV Angle Valve series delivers key performance indicators reliability and variability both. Tested in thousands of demanding applications under various process conditions the VLAS VLBS-G series has proven its outstanding reliability and variability.
With its design options in actuation from manual to pneumatic to electric, various flange connections, body materials and sealing materials, nearly every requirement can be met.
The VLAS VLBS-G is ideal for the pumping and venting of HV systems when a low outgassing rate is important. It resists high differential pressure and is fitted with a bellows-encapsulated feedthrough for particle-sensitive applications. The bellows encapsulation also prevents pressure peaks in any valve position.
Based on a reliable and robust core design, the VLAS VLBS-G HV Angle Valve offers different actuation options. The manual version is controlled by a removable hand wheel that provides good grip and precise control with a clear end stop position, avoiding the risk of over twisting. The pneumatic version can be configured as single acting with closing spring (NC), opening spring (NO) or double acting.
|
SIZES |
|
DN16 to 160mm |
|
ACTUATOR |
Pneumatic |
Single acting with NC or NO spring |
|
|
Manual |
With Removable Handwheel |
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BODY MATERIAL |
|
Aluminum or Stainless Steel |
|
FEEDTHROUGH |
|
Bellow |
|
LEAK RATE |
Valve Body |
< 1 × 10-9 mbar l/s |
|
|
Valve Seat |
< 1 × 10-9 mbar l/s |
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PRESSURE RANGE |
|
1 × 10-8 mbar to 2 bar (abs) |
|
DIFFERENTIAL PRESSURE |
In Opening Direction |
≤ 1.2 bar Max. |
|
|
In Closing Direction |
≤ 2 bar Max. |
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DIFFERENTIAL PRESSURE ON THE PLATE |
|
≤ 1.2 bar |
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CYCLES UNTIL FIRST SERVICE |
|
≥ 1,000,000 |
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TEMPERATURE |
Valve Body |
≤ 120 °C |
|
|
Actuator |
≤ 60 °C |
|
MATERIAL |
Valve Body, Plate |
AlSI 304 (1.4301) |
|
|
Shaft |
AlSI 304 (1.4301) |
|
|
Bellows |
AISI 633(AM350) or AISI 316L (1.4404, 1.4435) |
|
SEAL |
Bonnet |
FKM (Viton®) or on request |
|
|
Gate |
FKM (Viton®) or on request |
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MOUNTING POSITION |
|
Any |
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SOLENOID VALVE |
|
24 VDC, 2.5 W (others on request) |
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POSITION INDICATOR: CONTACT RATING |
Voltage |
≤ 24 VDC |
|
|
Current |
0-50 mA |
|
VALVE POSITION INDICATION |
|
Visual LED Lamp |