{"product_id":"welch-crvpro-6-rotary-vane-vacuum-pump","title":"Welch CRVpro 6 Rotary Vane Vacuum Pump","description":"\u003cdiv class=\"productdescriptiontables\"\u003e\n\u003ch1\u003eWelch CRVpro 6 Rotary Vane Vacuum Pump\u003c\/h1\u003e\n\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\n\u003cdiv class=\"highlights-divider\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv class=\"highlights-section\"\u003e\n\u003cdiv class=\"inner-highlight-div\"\u003e\n\u003cp class=\"inner-highlight\"\u003e\u003cb\u003eUltimate Vacuum Without Gas Ballast\u003c\/b\u003e\u003cbr\u003e2 × 10⁻³ mbar (1.5 × 10⁻³ Torr)\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"inner-highlight-div\"\u003e\n\u003cp class=\"inner-highlight\"\u003e\u003cb\u003eMaximum Pumping Speed\u003c\/b\u003e\u003cbr\u003e4.2 CFM (7.1 m³\/h)\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"inner-highlight-div\"\u003e\n\u003cp class=\"inner-highlight\"\u003e\u003cb\u003eInlet Connection \u003c\/b\u003e\u003cbr\u003eDN 16 KF\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"highlights-divider\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv class=\"features-section\"\u003e\n\u003cdiv class=\"features-side\"\u003e\n\u003cspan class=\"features-header\"\u003eFeatures\u003c\/span\u003e\n\u003cul\u003e\n\u003cli\u003eOil-sealed, two-stage rotary vane design delivers reliable vacuum performance for laboratory and industrial applications\u003c\/li\u003e\n\u003cli\u003eDirect-drive motor construction with elastic shaft coupling ensures smooth and consistent operation\u003c\/li\u003e\n\u003cli\u003eHigh pumping performance supports freeze drying, vacuum ovens, degassing, and chamber evacuation applications\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eAnti-suckback mechanism helps prevent oil backflow into the vacuum system during shutdown\u003c\/li\u003e\n\u003cli\u003eThermal overload protection safeguards the motor against overheating during operation\u003c\/li\u003e\n\u003cli\u003eLow-noise operation provides a more comfortable laboratory working environment\u003c\/li\u003e\n\u003cli\u003eAutomatic oil lubrication of sliding bearings supports long-term reliability and reduced component wear\u003c\/li\u003e\n\u003cli\u003eDurable construction designed for demanding laboratory and industrial vacuum applications\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"features-side\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0674\/5853\/1418\/files\/36d665bf-5525-48ea-8dbf-3ad0dcc79354-Photoroom.png?v=1792763929\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp\u003eThe Welch CRVpro 6 Rotary Vane Vacuum Pump is a reliable, high-performance vacuum pump designed for laboratory and industrial applications requiring consistent vacuum performance. Featuring an oil-sealed, two-stage rotary vane design, the CRVpro 6 provides efficient vacuum generation for applications including freeze drying, vacuum ovens, Schlenk lines, degassing, chamber evacuation, and backing turbomolecular pumps. Its direct-drive construction connects the motor and pump shaft through an elastic coupling, providing smooth operation and dependable performance across a wide range of vacuum processes.\u003cbr\u003e\u003cbr\u003eThe CRVpro 6 incorporates several features designed to enhance operational reliability and simplify maintenance, including a gas ballast valve, forced oil lubrication, an anti-suckback mechanism, and thermal overload protection. Its force-fed lubricated sliding bearings support consistent operation, while the integrated anti-suckback system helps prevent oil from flowing back into the vacuum system. Designed for demanding laboratory environments, the CRVpro 6 offers a durable and practical vacuum solution for applications requiring reliable vacuum generation.\u003cbr\u003e\u003cbr\u003eAll of our equipment is in excellent condition and will be fully tested to perform at factory specifications before being shipped.\u003c\/p\u003e\n\u003cdiv class=\"included-box\"\u003e\n\u003cspan class=\"included-header\"\u003eINCLUDED:\u003c\/span\u003e\u003cbr\u003eThe Welch CRVpro 6 Rotary Vane Vacuum Pump includes:\n\u003cul class=\"includes-list\"\u003e\n\u003cli\u003ePower Cord\u003c\/li\u003e\n\u003cli\u003eOperator's Manual\u003c\/li\u003e\n\u003cli\u003eFull 180 Day Parts and Labor Warranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003ch2\u003eWelch CRVpro 6 Rotary Vane Vacuum Pump Specifications\u003c\/h2\u003e\n\u003ctable class=\"spec-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaximum Pumping Speed\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4.2 CFM (7.1 m³\/h)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eUltimate Vacuum Without Gas Ballast\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2 × 10⁻³ mbar (1.5 × 10⁻³ Torr)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eUltimate Vacuum With Gas Ballast\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e7 × 10⁻² mbar (5 × 10⁻² Torr)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eNumber of Stages\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaximum Permissible Inlet Pressure\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1 bar (14.5 psi)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaximum Permissible Outlet Pressure\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1.35 bar (19.6 psi)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInlet Connection\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDN 16 KF\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOutlet Connection\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDN 16 KF\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAmbient Temperature Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e10°C to 40°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eNoise Level\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e50 dB(A) at 50Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDimensions (L × W × H)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e18.2 × 6.2 × 9.1 in. (46.3 × 15.7 × 23 cm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e48.5 lb. (22 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eElectrical Requirements\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e115V, 60Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003cspan class=\"downloads-header\"\u003eDownloads\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv class=\"downloads-section\"\u003e\n\u003cdiv class=\"pdf-button\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0674\/5853\/1418\/files\/Welch_CRVpro_Rotary_Vane_Vacuum_Pumps_-_Marshall_Scientific.pdf?v=1792763941\"\u003e Technical Specification Download \u003c\/a\u003e\u003c\/div\u003e\n\u003cdiv class=\"pdf-button\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0674\/5853\/1418\/files\/Welch_CRVpro_Rotary_Vane_Vacuum_Pumps_Manual_-_Marshall_Scientific.pdf?v=1792763946\"\u003e Operator's Manual Download \u003c\/a\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"formalquote2\"\u003e\u003ca class=\"formalquote2link\" href=\"\/formal_quote_a\/2142.htm\"\u003eRequest a Formal Quote\u003c\/a\u003e\u003c\/div\u003e","brand":"Marshall Scientific","offers":[{"title":"Default Title","offer_id":67824700325978,"sku":"WCRV6","price":1995.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/5853\/1418\/files\/36d665bf-5525-48ea-8dbf-3ad0dcc79354_8a2001d7-3965-43f7-8ffa-43fb0f01bb35.jpg?v=1792764047","url":"https:\/\/marshallscientific.com\/products\/welch-crvpro-6-rotary-vane-vacuum-pump","provider":"Marshall Scientific","version":"1.0","type":"link"}