{"product_id":"tested-e-7-torr-varian-tv-81-turbo-v-81-t-turbomolecular-high-vacuum-pump-uhv","title":"TESTED E-7 Torr: Varian TV-81 Turbo-V 81-T Turbomolecular High Vacuum Pump UHV","description":"\u003cp dir=\"ltr\" style=\"margin-top:0; margin-bottom:0;\"\u003eTESTED 5E-7 Torr: Varian Turbo-V 81-T Turbomolecular High Vacuum Pump UHV Includes TV81AG-NAV (Navigator) Controller \/ Power Supply\u003c\/p\u003e \u003cbr\u003e \u003cp dir=\"ltr\" style=\"margin-top:0; margin-bottom:0;\"\u003eHigh-performance turbomolecular pump package for high and ultra-high vacuum systems. Pump and controller have been tested and run properly; system achieved 5E-7 Torr in our setup, we ran it for about 6 hours.\u003c\/p\u003e \u003cbr\u003e \u003cbr\u003e \u003cp dir=\"ltr\" style=\"margin-top:0; margin-bottom:0;\"\u003eIncluded:\u003c\/p\u003e \u003cp dir=\"ltr\" style=\"margin-top:0; margin-bottom:0;\"\u003e-Varian Turbo-V 81-T turbomolecular pump\u003c\/p\u003e \u003cp dir=\"ltr\" style=\"margin-top:0; margin-bottom:0;\"\u003e    Part Number: 698905M002\u003c\/p\u003e \u003cp dir=\"ltr\" style=\"margin-top:0; margin-bottom:0;\"\u003e    Inlet flange: ISO 63 K\u003c\/p\u003e \u003cp dir=\"ltr\" style=\"margin-top:0; margin-bottom:0;\"\u003e    Exhaust flange: KF16\u003c\/p\u003e \u003cp dir=\"ltr\" style=\"margin-top:0; margin-bottom:0;\"\u003e-TV81AG-NAV Navigator controller \/ power supply\u003c\/p\u003e \u003cp dir=\"ltr\" style=\"margin-top:0; margin-bottom:0;\"\u003e    Part Number: 9698995M003\u003c\/p\u003e \u003cp dir=\"ltr\" style=\"margin-top:0; margin-bottom:0;\"\u003e    Input: 24 VDC (±10%), 80 W\u003c\/p\u003e \u003cp dir=\"ltr\" style=\"margin-top:0; margin-bottom:0;\"\u003e-Turbo pump cable that runs from controller to the turbo body.\u003c\/p\u003e \u003cbr\u003e \u003cp dir=\"ltr\" style=\"margin-top:0; margin-bottom:0;\"\u003eNo backing pump, vacuum hardware, or additional cables\/accessories included unless shown in photos or explicitly stated. Does not include any of the gauges or fittings from our test stand: those were to demonstrate performance only. If you need parts, we sell gauges, fittings, roughing pump, bellows, and more separately.\u003c\/p\u003e \u003cbr\u003e \u003cbr\u003e \u003cp dir=\"ltr\" style=\"margin-top:0; margin-bottom:0;\"\u003ePerformance (Turbo-V 81-T, specs from the manual):\u003c\/p\u003e \u003cp dir=\"ltr\" style=\"margin-top:0; margin-bottom:0;\"\u003ePumping speed:\u003c\/p\u003e \u003cp dir=\"ltr\" style=\"margin-top:0; margin-bottom:0;\"\u003eN₂: 77 L\/s\u003c\/p\u003e \u003cp dir=\"ltr\" style=\"margin-top:0; margin-bottom:0;\"\u003eHe: 65 L\/s\u003c\/p\u003e \u003cp dir=\"ltr\" style=\"margin-top:0; margin-bottom:0;\"\u003eH₂: 50 L\/s\u003c\/p\u003e \u003cp dir=\"ltr\" style=\"margin-top:0; margin-bottom:0;\"\u003eCompression ratio:\u003c\/p\u003e \u003cp dir=\"ltr\" style=\"margin-top:0; margin-bottom:0;\"\u003eN₂: \u0026gt;7 × 10⁶\u003c\/p\u003e \u003cp dir=\"ltr\" style=\"margin-top:0; margin-bottom:0;\"\u003eHe: 5 × 10³\u003c\/p\u003e \u003cp dir=\"ltr\" style=\"margin-top:0; margin-bottom:0;\"\u003eH₂: 3 × 10²\u003c\/p\u003e \u003cp dir=\"ltr\" style=\"margin-top:0; margin-bottom:0;\"\u003eBase pressure (with recommended backing pump):\u003c\/p\u003e \u003cp dir=\"ltr\" style=\"margin-top:0; margin-bottom:0;\"\u003eMechanical backing: 5 × 10⁻⁹ mbar (3.8 × 10⁻⁹ Torr)\u003c\/p\u003e \u003cp dir=\"ltr\" style=\"margin-top:0; margin-bottom:0;\"\u003eDiaphragm backing: 5 × 10⁻⁸ mbar (3.8 × 10⁻⁸ Torr)\u003c\/p\u003e \u003cp dir=\"ltr\" style=\"margin-top:0; margin-bottom:0;\"\u003eStart-up time: \u0026lt;60 seconds\u003c\/p\u003e \u003cp dir=\"ltr\" style=\"margin-top:0; margin-bottom:0;\"\u003eMax rotational speed: 1350 Hz (≈80k rpm class)\u003c\/p\u003e \u003cbr\u003e \u003cp dir=\"ltr\" style=\"margin-top:0; margin-bottom:0;\"\u003eMechanical \/ Environmental (info from the manual):\u003c\/p\u003e \u003cp dir=\"ltr\" style=\"margin-top:0; margin-bottom:0;\"\u003eOperating position: any orientation\u003c\/p\u003e \u003cp dir=\"ltr\" style=\"margin-top:0; margin-bottom:0;\"\u003eCooling: natural convection (optional forced-air fan or water cooling)\u003c\/p\u003e \u003cp dir=\"ltr\" style=\"margin-top:0; margin-bottom:0;\"\u003eAmbient temperature:\u003c\/p\u003e \u003cp dir=\"ltr\" style=\"margin-top:0; margin-bottom:0;\"\u003eNatural convection: +5 to +25 °C\u003c\/p\u003e \u003cp dir=\"ltr\" style=\"margin-top:0; margin-bottom:0;\"\u003eForced air \/ water: +5 to +35 °C\u003c\/p\u003e \u003cp dir=\"ltr\" style=\"margin-top:0; margin-bottom:0;\"\u003eWeight (ISO 63 K version): 1.99 kg (4.4 lb)\u003c\/p\u003e \u003cp dir=\"ltr\" style=\"margin-top:0; margin-bottom:0;\"\u003eElectrical (Pump drive via controller)\u003c\/p\u003e \u003cp dir=\"ltr\" style=\"margin-top:0; margin-bottom:0;\"\u003eOutput to pump: 60 Vac, 3-phase, up to 1350 Hz\u003c\/p\u003e \u003cp dir=\"ltr\" style=\"margin-top:0; margin-bottom:0;\"\u003eDrive power: 50 W max (at pump)\u003c\/p\u003e \u003cp dir=\"ltr\" style=\"margin-top:0; margin-bottom:0;\"\u003eBacking pump recommendations (OEM guidance)\u003c\/p\u003e \u003cp dir=\"ltr\" style=\"margin-top:0; margin-bottom:0;\"\u003eMechanical backing: DS42 to DS102 class, or equivalent\u003c\/p\u003e \u003cp dir=\"ltr\" style=\"margin-top:0; margin-bottom:0;\"\u003eDry backing option: SH100 class, or equivalent\u003c\/p\u003e \u003cbr\u003e \u003cbr\u003e \u003cp dir=\"ltr\" style=\"margin-top:0; margin-bottom:0;\"\u003eCondition \/ Test:\u003c\/p\u003e \u003cp dir=\"ltr\" style=\"margin-top:0; margin-bottom:0;\"\u003eUsed unit. Tested for proper operation and achieved 5E-7 Torr in our setup. Ultimate pressure you achieve depends on backing pump performance, plumbing conductance, chamber cleanliness, and leak rate.\u003c\/p\u003e \u003cbr\u003e \u003cbr\u003e \u003cp dir=\"ltr\" style=\"margin-top:0; margin-bottom:0;\"\u003eKeywords:\u003c\/p\u003e \u003cp dir=\"ltr\" style=\"margin-top:0; margin-bottom:0;\"\u003eVarian Agilent Turbo-V 81-T TV81 turbomolecular turbo pump ISO 63 K KF16 UHV high vacuum 24VDC TV81AG NAV Navigator controller 698905M002 9698995M003\u003c\/p\u003e","brand":"Lab Liquidators Store","offers":[{"title":"Default Title","offer_id":51999282495780,"sku":"SP111116985","price":2900.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0748\/5289\/2964\/files\/406666412528-0.jpg?v=1770650879","url":"https:\/\/store.labliquidators.com\/products\/tested-e-7-torr-varian-tv-81-turbo-v-81-t-turbomolecular-high-vacuum-pump-uhv","provider":"Lab Liquidators Store","version":"1.0","type":"link"}