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> New mks hps iso-100 2-stage high vacuum valve
New mks hps iso-100 2-stage high vacuum valve
This is a NEW MKS HPS stainless steel high vacuum valve with ISO-100 flanges, and equipped with a KF-25 valve in a bypass cofiguration.
- stainless steel right angle valve
- actuation is bellows sealed
- pneumatic actuation (air-to-open, air-to-close; not spring loaded)
- constructed with KF-25 ports for connection of a bypass valve
- stainless steel right angle valve
- actuation is bellows sealed
- pneumatic actuation (air-to-open, spring-to-close)
- KF-25 centering rings (stainless steel) and o-rings (Viton)
(Click on thumbnails below to view higher quality images.)
This assembly consists of an ISO-100 right angle valve with a KF-25 valve in a bypass configuration. The lower-conductance bypass can be used to carry out a "softer" initial chamber pumpdown with reduced turbulent flow, and the main valve can then be opened for full conductance once an appropriate pressure has been obtained. This functionality is desirable for processes sensitive to particulates. As configured, the KF-25 valve has the full normal conductance that would be expected for its size (no special restrictions).
As received by the seller, this assembly was in the sealed factory bag as shown. The seller chose to take a "trust but verify" approach, so the bag was opened to allow for inspection of the contents. The assembly appears to never have been installed or used. External surfaces are in excellent cosmetic condition. Interior surfaces and flange sealing surfaces appear immaculate.
Questions - please ask. Thanks for looking!
