This internal pinch-tube valve was designed to minimize reagent consumption, improve throughput, and maintain the vitality of cells. Xover configurations boast low internal volumes and a smooth, low shear, easily flushable fluid path on all models. The 3-way features a Y-shaped elastomer tube, which offers ultra-low carryover volume when switching between fluids. The valve is also offered in a 2-way Normally Closed or a 2-way Normally Open configuration and in a higher flow rate model (1000 Lohm) or lower internal volume model (3800 Lohm). Unlike traditional external pinch valves, Xover is durable across a long life and switches consistently in less than 40 ms. It is ideal for applications in flow cytometry, gene sequencing, and analytical chemistry. Each valve is customizable and 100% tested to guarantee performance
|Operating Pressure||Vac - 30 psig; 30 psid Max|
|Cycle Life1||5 M Cycles Min|
|Minimum Passage Size 2||1000 Lohm Models: 0.012 inches (300 Microns)
3800 Lohm Models: 0.008 inches (200 Microns)
|Response Time 3||40 ms Max|
|Operating Temperature4||45°F to 118°F (7°C to 48°C)|
|Storage Conditions||Temperature: -40°F to 175°F (-40°C to 80°C)
Relative Humidity: 85% Max, Non-Condensing
This table below contains the part numbers and technical specifications for this product. If you have specific questions, need a quote, or would like to request a handbook or drawing, click the red request button in the column on the far right.
|PART NUMBER||CONFIGURATION||VOLTAGE (Vdc)||OPERATING PRESSURE (PSIG)||LOHM RATE 1 (Cv)||INTERNAL VOLUME (µL)||CARRYOVER VOLUME (µL)||Request Information|
|LXRA1205100B||2-Way NC||12||Vacuum - 30||1000 Lohms (0.02)||19||N/A||Request|
|LXRA2405100B||2-Way NC||24||Vacuum - 30||1000 Lohms (0.02)||19||N/A||Request|
|LXRA1205200B||2-Way NO||12||Vacuum - 30||1000 Lohms (0.02)||19||N/A||Request|
|LXRA2405200B||2-Way NO||24||Vacuum - 30||1000 Lohms (0.02)||19||N/A||Request|
|LXRA1205000B||3-Way||12||Vacuum - 30||1000 Lohms (0.02)||32||9.9||Request|
|LXRA2405000B||3-Way||24||Vacuum - 30||1000 Lohms (0.02)||32||9.9||Request|
|LXRA1201000B||3-Way||12||Vacuum - 30||3800 Lohms (0.005)||11||3.7||Request|
|LXRA2401000B||3-Way||24||Vacuum - 30||3800 Lohms (0.005)||11||3.7||Request|
|IKTX0322850A||Starter Kit: three TNTX050010A Tubing Assemblies, one IHWX0212470A Panel Mounting Hardware Kit, three TMDA2004910A ¼-28 flat bottom to 1/32" ID Flexible Tubing Adapters, and a IHWX0212470A 12" Lead Wire|
|IKTX0322760A||Starter Kit: one LXRA2401000B Xover valve (24 VDC, 3800 Lohms), three TNTX0500100A Tubing Assemblies, one IHWX0212470A Panel Mounting Hardware Kit, and a IHWX0212470A 12" Lead Wire|
|IKTX0322770A||Starter Kit: one LXRA1201000B Xover valve (12 VDC, 3800 Lohms), three TNTX0500100A Tubing Assemblies, one IHWX0212470A Panel Mounting Hardware Kit, and a IHWX0212470A 12" Lead Wire|
|TMDA2004910A||Barbed Adapter for 0.020" (0.5 mm) ID or 1/32" (0.8 mm) ID Soft Tubing, PEEK and PTFE|
|TMDA3204950Z||062 MINSTAC to ¼-28 FB Adapter, PEEK and PTFE|
|TMPA9502909Z||¼-28 Boss Plug, PEEK and PTFE|
|IHWX0248180A||Lead Wire Connector, 12" long (30.5 cm)|
|IHWX0212470A||Panel Mounting Hardware Kit, for Panels up to 0.25" Thick|
|TNTX0500100A 1||Tubing, 0.020" (0.5 mm) ID, 11.8" (30 cm) Long, 2 Connectors, 62 µL Internal Volume, PTFE, ETFE Materials|
|TUTC1226915L 2||Tubing, 0.012" (0.3 mm ) ID, 5.9" (15 cm) Long, 2 Connectors, 11 µL Internal Volume, PTFE, ETFE Materials|
|TUTC1226930L 2||Tubing, 0.012" (0.3 mm ) ID, 11.8" (30 cm) Long, 2 Connectors, 22 µL Internal Volume, PTFE, PCTFE Materials|
|TUTC1226960L 2||Tubing, 0.012" (0.3 mm ) ID, 23.6" (60 cm) Long, 2 Connectors, 44 µL Internal Volume, PTFE, PCTFE Materials|
|TUTB1226910D 1, 2||Tubing, 0.012" (0.3 mm ) ID, 39.4" (100 cm) Long, 1 Connector, 73 µL Internal Volume, PTFE, PCTFE Materials|
From plugs to solenoid valves, there’s a vast array of products that The Lee Company can offer. If you’d like to discuss the best solution for your specific application or to learn more about our capabilities, use-cases, or quality standards, contact your local Lee sales engineer.
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The Lee Company has developed the Lohm Laws for defining and measuring resistance to fluid flow. The Lohm is defined such that 1 Lohm will flow 100 GPM of water with a pressure drop of 25 psi at a temperature of 80°F.