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Micrometering valves

廠牌:VICI AG
供應商:恆奕企業有限公司【恆誼儀器有限公司】
聯絡電話:02-22566685#17
定價:與我們聯絡

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on/off valves

Micrometering valves

Micrometering (needle) valves combine the ease of connection associated with Valco zero dead volume fittings with convenient bulkhead mounting. The very low internal volume and precision design make this valve ideal for use as a gas control valve in chromatographic systems.

The Viton® model is rated at 225°C, while a version with Kalrez® seals is capable of continuous operation at 315°C. This allows a needle valve to be mounted directly within a heated oven, facilitating control of flow switching in multidimensional systems while keeping the gases at oven temperature.

Valves are rated for maximum of 1000 psi gas. They are individually tested on a mass spectrometer leak detector to a helium leak rate specification of < 1 x 10-8 atm cc/sec.

An unlubricated version with a specially polished seat was designed to be used with our pulsed discharge detectors, and should be used upstream of any ultrapure gas system. There is also a 1/16" tube version.


Product numbers

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Micrometering valves with 1/16" ZDV fittings

 Seal   Lubrication   Prod. no.   
 Standard: 2-225 ml/min @ 15 psig N2 inlet   
 Viton  Lubricated   ZBNV1
 Non-lubricated   ZBNV1-D
 Kalrez   Non-lubricated  ZBNV1-KZ
 Fine control: 2-175 ml/min @ 15 psig N2 inlet 
 Viton  Lubricated   ZBNV1F
 Non-lubricated   ZBNV1F-D
 Kalrez   Non-lubricated  ZBNV1F-KZ
 Low flow: 2-90 ml/min @ 40 psig N2 inlet 
 Viton  Lubricated   ZBNV1LF
 Non-lubricated   ZBNV1LF-D
 Kalrez   Non-lubricated  ZBNV1LF-KZ
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Micrometering valves with 1/16"OD x 18" tubes

 Seal   Lubrication   Prod. no.   
 Standard: 2-225 ml/min @ 15 psig N2 inlet   
 Viton  Lubricated   BNV1
 Non-lubricated   BNV1-D
 Kalrez   Non-lubricated  BNV1-KZ
 Low flow: 2-90 ml/min @ 40 psig N2 inlet 
 Viton  Lubricated   BNV1LF
 Non-lubricated   BNV1LF-D
 Kalrez   Non-lubricated  BNV1LF-KZ

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