Check the listing for details. MKS Instruments CVNL-K2-MTVV Compact Vacuum Isolation Valve. Condition: New. Listed at 249.99 USD. This is a brand new MKS CVNL-K2-MTVV Compact Vacuum Isolation Valve . If there are any problems with this unit, please don't hesitate to send us a message so we can remedy the situation with a return/refund. We want to provide our customers with the best service and parts. We buy our inventory from local precision manufacturers within the semiconductor community to ensure quality and OEM performance standards. For custom quantities, please send us a message inquiry and we can get you a quote. If there are any issues with your order, please reach out and we will be glad to help. Specifications TypeCompact Bellows-sealed Isolation ValvesVacuum RangeAtmosphere to below 10-9 TorrBody ConfigurationInlineHelium Leak RateLess than 1.0 X 10-9 std cc/secWetted Volume1.09 in3 (17.8 cm3) depending on configurationCylinder Volume0.25 in.3 (4.1 cm3 )Cylinder Air Pressure60 to 120 psigLimit Switch Rating.5 A - 115 VACSingle Pole, Single Throw5 A - 24 VDCSolenoid Voltage6.0 watts: AC7.0 watts: DCBlow-By Pressure30 psi (1500 Torr) differentialOperating Temperature-26 to 125° CMaximum Bakeout Temperature150° COrientationSeals against atm at either portConductanceAngle KF25 - 4.5 l/secInline: KF25 - 3.4 l/secClosing Time100 msecTypical Life1,000,000 cyclesWeight12.8 - 16.9 oz, depending on configuration Gauge Isolation ApplicationsIn gauge isolation applications, the Cv Valve’s high conductance ensures more accurate readings and helps improve gauge response time. The Cv Valve can isolate the sensor from the chamber during venting to atmosphere. If a capacitance manometer is being used, the isolation valve will prevent overpressuring the diaphragm. Where the gauge is used to monitor pressure, and not required for process control, it can be isolated during the process to prevent process gases from contaminating the gauge.