LoPro™ single-stage bellows vacuum isolation valves have a small footprint that fits easily into existing, and new, vacuum systems. A formed stainless-steel bellows prevents outgassing, virtual leaks, and particle entrapment between bellows convolutions that extends the valves life cycle over a conventional O-ring shaft sealed valve. The bellows' stroke length is optimized to assure a long cycle life while maintaining high conductance.
Description | Drawings, CAD & Specs | Availability | Price | |||
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LPV1-25-AK-CNVS Poppet Valve, LoPro, NW25 ISO-KF, Angle Ports, Viton Seals, Pneumatic |
14 Weeks
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$425 |
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LPV1-25-AK-MNVN Poppet Valve, LoPro, NW25 ISO-KF, Angle Ports, Viton Seals, Manual |
14 Weeks
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$384 |
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Poppet Valve, LoPro, NW40 ISO-KF, Angle Ports, Viton Seals, Pneumatic, w/Limit Switch
$519
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LPV1-40-AK-CLVS Poppet Valve, LoPro, NW40 ISO-KF, Angle Ports, Viton Seals, Pneumatic, w/Limit Switch |
14 Weeks
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$519 |
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LPV1-40-AK-CNVS Poppet Valve, LoPro, NW40 ISO-KF, Angle Ports, Viton Seals, Pneumatic |
14 Weeks
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$464 |
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LPV1-40-AK-MNVN Poppet Valve, LoPro, NW40 ISO-KF, Angle Ports, Viton Seals, Manual |
14 Weeks
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$412 |
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Poppet Valve, LoPro, NW40 ISO-KF, Inline Ports, Viton Seals, Pneumatic, w/Limit Switch
$638
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LPV1-40-IK-CLVS Poppet Valve, LoPro, NW40 ISO-KF, Inline Ports, Viton Seals, Pneumatic, w/Limit Switch |
14 Weeks
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$638 |
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Poppet Valve, LoPro, NW40 ISO-KF, Inline Ports, Viton Seals, Pneumatic
$557
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LPV1-40-IK-CNVS Poppet Valve, LoPro, NW40 ISO-KF, Inline Ports, Viton Seals, Pneumatic |
14 Weeks
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$557 |
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LPV1-40-IK-MNVN Poppet Valve, LoPro, NW40 ISO-KF, Inline Ports, Viton Seals, Manual |
14 Weeks
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$504 |
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Poppet Valve, LoPro, NW50 ISO-KF, AnglePorts, Kalrez Seals, Pneumatic, w/Limit Switch
$1,420
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LPV1-50-AK-CLKS Poppet Valve, LoPro, NW50 ISO-KF, AnglePorts, Kalrez Seals, Pneumatic, w/Limit Switch |
14 Weeks
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$1,420 |
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LPV1-50-AK-CNVS Poppet Valve, LoPro, NW50 ISO-KF, Angle Ports, Viton Seals, Pneumatic |
14 Weeks
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$638 |
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LPV1-50-AK-MNVN Poppet Valve, LoPro, NW50 ISO-KF, Angle Ports, Viton Seals, Manual |
14 Weeks
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$574 |
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Poppet Valve, LoPro, NW50 ISO-KF, Inline Ports, Viton Seals, Pneumatic
$731
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LPV1-50-IK-CNVS Poppet Valve, LoPro, NW50 ISO-KF, Inline Ports, Viton Seals, Pneumatic |
14 Weeks
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$731 |
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LPV1-50-IK-MNVN Poppet Valve, LoPro, NW50 ISO-KF, Inline Ports, Viton Seals, Manual |
14 Weeks
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$661 |
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Please see the LPV1 datasheet for product options.
Another standard feature is a TIG fusion-welded, bead-blasted body made of high grade, corrosion resistant, 304 stainless steel for significantly fewer entrapment areas, resulting in less contaminant build-up. In the event of power or air loss, the pneumatic LoPro Valve will automatically spring to close. Actuation can be pneumatic or manual.
The LoPro Valve is available in both angle and inline versions. Port sizes include outside diameters of 1, 1½, and 2 inches and standard port interfaces include KF flanges, CF flanges, and weld stubs. For leak-tight operation, elastomer seals are available in Viton® for typical vacuum operating conditions, in Kalrez® or Chemraz® for higher temperature conditions and increased chemical resistance, and in Buna-N or Silicone.
Learn how to replace the internal assembly on an MKS Isolation valve. We will be replacing the internals in the MKS valve LPV1-40-AK-CNVS. The process is similar for most MKS isolation valves.