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Our online catalog is being updated! Please contact us for current pricing.
VLS Series Viewport Shutters
![[VLS-600]](/Legacy/Graphics/vls-600.gif)
Thermionics manufactures
a series of linear-actuated shutter assemblies. They are of the "gate valve actuation"
type. Linear actuation is supplied by our FLM-133-25 push-pull
linear feedthrough (included). This supplies positive mechanical control of shutter
position, and does not introduce stray magnetic fields. This also makes a number
of drive options available at competitive prices.
Specifications
- All metal sealed
- Actuated with attached FLM-133-25 with position lock
- All stainless steel construction
- Attached shutter covers 100% of standard viewport window
- Protects viewport from depositing materials
Ordering Information -- Linear-Actuated Viewport Shutters
Mounting
Flange O.D. |
ID |
Model
No. |
Price |
| 2.75" |
1.50" |
VLS-275 |
$1,200. |
| 6.00" |
3.75" |
VLS-600 |
$1,550. |
Pneumatic actuation available.
Other sizes available. |
OPTIONS
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/PNM Pneumatically Operated
- 1/4" O.D. output shaft
- Bellows sealed
Price $480.
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![[VLS-600/PNM/ACV-24]](/Legacy/Graphics/vls.gif)
/ACV-24 Air Control Valve Option
- Mounted to feedthrough
- Valve to actuator plumbing installed
- Control voltage 24 VDC standard or per customer requirements
- With flow controls, both directions
Price $115
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