{"title":"Vacuum Pump Selection Guide","description":"\u003ch3\u003eOptimize Your System\u003c\/h3\u003e\n\u003cp\u003eDiscover our vacuum pump selection guide to optimize your system's performance. Find the perfect vacuum pump tailored to your specific needs, whether for industrial or laboratory applications. Achieve superior vacuum levels and ensure efficiency with our diverse range of options.\u003c\/p\u003e\n\u003ch3\u003eAdvanced Technology\u003c\/h3\u003e\n\u003cp\u003eExplore cutting-edge technology with our innovative vacuum pumps designed to deliver precision and reliability. Benefit from advanced features such as energy efficiency, low noise levels, and long-term durability. Choose from a selection of high-quality pumps that are built to meet the demands of various industries.\u003c\/p\u003e\n\u003ch3\u003eExpert Guidance\u003c\/h3\u003e\n\u003cp\u003eReceive expert guidance on choosing the right vacuum pump for your requirements. Our team of specialists is here to provide personalized recommendations and support throughout the selection process. Maximize performance and productivity with the help of our comprehensive vacuum pump selection guide.\u003c\/p\u003e","products":[{"product_id":"vacuum-pump-selection-guide","title":"Vacuum Pump Selection Guide","description":"\u003cp\u003eThis selection guide is application specific. Choose your common laboratory application appliance below by clicking on the application's illustration. All vacuum pump selections are approved by Chemtech Scientific vacuum engineers, repair staff and our on staff Chemist.\u003c\/p\u003e\n\u003cp\u003eAll vacuum pumps on this site are the best in their class in quality and performance for the specific applications and processes in this guide. Get started by selecting your vacuum application below.\u003c\/p\u003e","brand":"consult_","offers":[{"title":"Default Title","offer_id":34891669961,"sku":null,"price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0755\/2467\/products\/vacuum-pump-selection-guide-235331059808.png?v=1779797149"},{"product_id":"rotary-evaporator","title":"Rotary Evaporator","description":"\u003cp\u003eChemtech Scientific Vacuum Engineers, Chemists and Vacuum Pump Mechanics consider the following factors in selecting the perfect performing and lowest maintenance Rotary evaporator  vacuum pumps: \u003cspan style=\"color: #0000ff;\"\u003e\u003ca href=\"https:\/\/www.chemtechsci.com\/pages\/solvent-properties-chart\" title=\"Solvent Properties Chart\" target=\"_blank\" rel=\"noopener noreferrer\" style=\"color: #0000ff;\"\u003eVapor pressure of solvent  \u003c\/a\u003e\u003c\/span\u003e\u003cspan style=\"color: #000000;\"\u003e-Ultimate pressure of vacuum pump -Latent heat of vaporization -Temperature of heat bath -Temperature of condenser -Volume of rotary flask -Solvent expansion ratio -Pumping speed of vacuum pump -\u003c\/span\u003e\u003ca href=\"https:\/\/www.chemtechsci.com\/pages\/chemical-compatibility-chart\" target=\"_blank\" title=\"Chemical Compatibility Chart\" rel=\"noopener noreferrer\"\u003e\u003cspan style=\"color: #0000ff;\"\u003eChemical compatibility of solvent and wetted parts of system and pump\u003c\/span\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cp\u003eYou can contact us to review your process and select the best vacuum pump for your application. If you have taken the above factors into consideration, get started by selecting the boiling point range of the highest boiling point solvent you will need to evaporate. If you would like assistance, we will gladly assist you.Or, see our \u003cspan style=\"color: #0000ff;\"\u003e\u003ca href=\"https:\/\/www.chemtechsci.com\/pages\/solvent-properties-chart\" target=\"_blank\" title=\"Solvent Properties Chart\" style=\"color: #0000ff;\" rel=\"noopener noreferrer\"\u003esolvent properties chart.\u003c\/a\u003e\u003c\/span\u003e\u003c\/p\u003e","brand":"consult_g_","offers":[{"title":"Default Title","offer_id":34902576457,"sku":null,"price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0755\/2467\/products\/rotary-evaporator-238360920160.png?v=1779793765"},{"product_id":"schlenkline-high-vacuum-manifold","title":"SchlenkLine \/ High Vacuum Manifold","description":"\u003cp\u003eChemtech Scientific Vacuum Engineers, Chemists and Vacuum Pump Mechanics consider the following factors in selecting the perfect performing and lowest maintenance Schlenk Line\/High Vacuum Manifold  vacuum pumps:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan style=\"color: #0000ff;\"\u003ePartial pressure of solvent\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"color: #0000ff;\"\u003eLatent heat of vaporization\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"color: #0000ff;\"\u003eSolvent expansion ratio\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"color: #0000ff;\"\u003eChemical compatibility\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"color: #0000ff;\"\u003eVolume of drying\/reaction flask(s)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"color: #0000ff;\"\u003eTemperature of cold trap\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"color: #0000ff;\"\u003eUltimate pressure of vacuum pump\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"color: #0000ff;\"\u003ePumping speed of vacuum pump\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"color: #0000ff;\"\u003eChemical compatibility of solvent and wetted parts of system and pump\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIf you have not considered the above factors, please contact us to review your process and select the best vacuum pump for your application. If you have taken the above factors into consideration, get started by selecting the boiling point range of the highest boiling point solvent you will need to evaporate. If you would like assistance, we will gladly assist you.\u003c\/p\u003e\n\u003cp\u003eIn selecting Vacuum Pumps for a Schlenk Line\/High Vacuum Manifold, we assume at least occasional very high boiling solvent drying needs. If you will only work with high boiling to medium boiling solvents, please see rotary evaporator vacuum pump selection of this resource.\u003c\/p\u003e\n\u003cp\u003eGet started by selecting the Flask size of your drying or reaction vessel.\u003c\/p\u003e","brand":"consult_g_","offers":[{"title":"Default Title","offer_id":34902649929,"sku":null,"price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0755\/2467\/products\/schlenkline-high-vacuum-manifold-238360952928.png?v=1779797150"},{"product_id":"vacuum-oven-furnace","title":"Vacuum Oven \/ Furnace","description":"\u003cp\u003eChemtech Scientific Vacuum Engineers, Chemists and Vacuum Pump Mechanics consider the following factors in selecting the perfect performing and lowest maintenance Vacuum Oven  vacuum pumps: \u003ca href=\"https:\/\/www.chemtechsci.com\/pages\/solvent-properties-chart\" target=\"_blank\" title=\"Solvent Properties Chart\" rel=\"noopener noreferrer\"\u003e\u003cspan style=\"color: #0000ff;\"\u003e- Partial pressure of solvent\u003c\/span\u003e\u003c\/a\u003e\u003cspan style=\"color: #0000ff;\"\u003e\u003cspan style=\"color: #000000;\"\u003e -Ultimate pressure of vacuum pump -Latent heat of vaporization - Temperature of oven - Internal volume of oven - Solvent expansion ratio - Pumping speed of vacuum pump -\u003c\/span\u003e \u003ca href=\"https:\/\/www.chemtechsci.com\/pages\/chemical-compatibility-chart\" target=\"_blank\" title=\"Chemical Compatibility Chart\" style=\"color: #0000ff;\" rel=\"noopener noreferrer\"\u003eChemical compatibility of solvent and wetted parts of system and pump\u003c\/a\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cp\u003eYou can contact us to review your process and select the best vacuum pump for your application. If you have taken the above factors into consideration, get started by selecting the internal volume of your vacuum oven below:\u003c\/p\u003e","brand":"consult_g_","offers":[{"title":"Default Title","offer_id":34902673225,"sku":null,"price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0755\/2467\/products\/vacuum-oven-furnace-238361608288.png?v=1779797145"},{"product_id":"freezedryer-lyophilizer","title":"FreezeDryer \/ Lyophilizer","description":"\u003cp\u003eChemtech Scientific Vacuum Engineers, Chemists and Vacuum Pump Mechanics consider the following factors in selecting the perfect performing and lowest maintenance Freeze Dryer\/Lyophilizer  vacuum pumps:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan style=\"color: #0000ff;\"\u003eSample preparation\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"color: #0000ff;\"\u003eTriple point of material\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"color: #0000ff;\"\u003eTemperature of sample\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"color: #0000ff;\"\u003eLatent heat of fusion\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"color: #0000ff;\"\u003eLatent heat of vaporization\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"color: #0000ff;\"\u003eHeat source\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"color: #0000ff;\"\u003eVacuum Pressure\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"color: #0000ff;\"\u003eExpansion ratio of solvent\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"color: #0000ff;\"\u003eVolume of system (collector size)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"color: #0000ff;\"\u003ePumping speed of pump\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"color: #0000ff;\"\u003eTemperature of collector\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"color: #0000ff;\"\u003eChemical compatibility of solvent and wetted parts of system and pump\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eYou can contact us to review your process and select the best vacuum pump for your application. If you have taken the above factors into consideration, get started by selecting the collector size of your freeze dryer\/lyophilizer below.\u003c\/p\u003e","brand":"consult_g_","offers":[{"title":"Default Title","offer_id":34902705993,"sku":null,"price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0755\/2467\/products\/freezedryer-lyophilizer-238360494176.png?v=1779796191"},{"product_id":"filtration-or-aspiration","title":"Filtration or Aspiration","description":"\u003cp\u003eChemtech Scientific Vacuum Engineers, Chemists and Vacuum Pump Mechanics consider the following factors in selecting the perfect performing and lowest maintenance Filtration\/Aspiration (General Laboratory Vacuum processes) vacuum pumps:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan style=\"color: #0000ff;\"\u003ePressure differential\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"color: #0000ff;\"\u003eViscosity of fluid\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"color: #0000ff;\"\u003eNumber of nozzles (Port\/Turrets\/outlets\/appliances) in system\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"color: #0000ff;\"\u003eLength and diameter of tubing\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"color: #0000ff;\"\u003eVolume of appliances\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"color: #0000ff;\"\u003eChemical compatibility of fluid's\/gasses and wetted parts of system and pump\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIf you have not considered the above factors, please contact us to review your process and select the best vacuum pump for your application. If you have taken the above factors into consideration, get started by selecting the viscosity of the fluids you will filter or aspirate:\u003c\/p\u003e","brand":"consult_g_","offers":[{"title":"Default Title","offer_id":34902733449,"sku":null,"price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0755\/2467\/products\/filtration-or-aspiration-238360330336.png?v=1779797149"},{"product_id":"glove-box-antechamber","title":"Glove Box Antechamber","description":"\u003cp\u003eChemtech Scientific Vacuum Engineers, Chemists and Vacuum Pump Mechanics consider the following factors in selecting the perfect performing and lowest maintenance Glove box Antechamber vacuum pumps: \u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan style=\"color: #0000ff;\"\u003eParts per million Oxygen (O2)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"color: #0000ff;\"\u003eParts per million moisture (H2O)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"color: #0000ff;\"\u003ePurification protocol\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"color: #0000ff;\"\u003eBackfill gas\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"color: #0000ff;\"\u003eNumber of backfill cycles\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"color: #0000ff;\"\u003eVolume of antechamber\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"color: #0000ff;\"\u003eUltimate pressure of vacuum pump\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"color: #0000ff;\"\u003ePumping speed of vacuum pump\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan style=\"color: #0000ff;\"\u003e\u003cspan style=\"color: #000000;\"\u003eEither of the three pumps below will provide the correct vacuum and flow\/pumping speed to perform your process seamlessly and provide excellent system performance to the process operators. However Direct Driven oil sealed vacuum pumps will operate hotter, exhaust more oil into the lab (or exhaust line),and be the higher maintenance of the three selections. The Belt driven pump is the most durable, forgiving and lower maintenance of the oil sealed options. The Dry Scroll pump will be the lowest maintenance, cleanest pump and will not expose the antechamber to oil migration, as will the oil sealed pumps. Dry Scroll pumps are the newest technology, but the highest cost option.\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e","brand":"consult_g_","offers":[{"title":"Default Title","offer_id":34902765641,"sku":null,"price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0755\/2467\/products\/glove-box-antechamber-238360526944.png?v=1779797151"},{"product_id":"refrigeration-services","title":"Refrigeration Services","description":"\u003cp\u003eChemtech Scientific Vacuum Engineers, Chemists and Vacuum Pump Mechanics consider the following factors in selecting the perfect performing and lowest maintenance Refrigeration Services  vacuum pumps:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan style=\"color: #0000ff;\"\u003ePartial pressure of contaminants to be evaporated out of system\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"color: #0000ff;\"\u003eUltimate pressure of vacuum pump\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"color: #0000ff;\"\u003eLatent heat of vaporization\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"color: #0000ff;\"\u003eVolume of Refrigeration Unit\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"color: #0000ff;\"\u003eLiquid to gas expansion ratio\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"color: #0000ff;\"\u003ePumping speed of vacuum pump\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"color: #0000ff;\"\u003eChemical compatibility refrigerant  and wetted parts of system and pump\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eTo get started, please select the Refrigeration System for which you require vacuum below:\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: #0000ff;\"\u003eLithium Bromide Absorption Chiller  \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: #0000ff;\"\u003eAmmonia Chiller\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: #0000ff;\"\u003eRefrigeration Recovery\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: #0000ff;\"\u003eRoof Top Units \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: #0000ff;\"\u003eCold Storage\u003c\/span\u003e\u003c\/p\u003e","brand":"consult_g_","offers":[{"title":"Default Title","offer_id":34902808393,"sku":null,"price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0755\/2467\/products\/refrigeration-services-238360690784.png?v=1779797154"},{"product_id":"house-vacuum-and-networked-vacuum","title":"House Vacuum and Networked Vacuum","description":"\u003cp\u003eHouse Vacuum\/Networked Vacuum systems allow multiple ports\/nozzles in the system to be served by one or more vacuum pumps. We have designed systems, supplied new construction, new lab set ups and renovations ranging from one vacuum pump to two hundred vacuum pump systems.\u003c\/p\u003e\n\u003cp\u003eChemtech Scientific has unique understanding of House Vacuum and Networked Vacuum systems and, we are independent of a specific manufacturer, which allows us third-party objectivity to assure the best solution, regardless of brand.\u003c\/p\u003e\n\u003cp\u003eWe regularly consult architects, mechanical engineers and facilities personnel on networked and house vacuum designs. We leverage our vast experience to eliminate problems such as cross-contamination, significant fluctuations in pressure, the sluggish performance due to the conductance of tubing and excessive noise of the system.\u003c\/p\u003e\n\u003cp\u003eChemtech Scientific has designed a range of leak free anti-flooding devices, liquid separators, and connectors for networking laboratory vacuum pumps. Our engineers have unique expertise in designing laboratory vacuum systems to include all laboratory processes. Please contact us for a complete solution to your networked vacuum project.\u003c\/p\u003e\n\u003cp\u003eFactors to be considered for Networked Vacuum Systems:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan style=\"color: #0000ff;\"\u003eProcess vacuum requirements\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"color: #0000ff;\"\u003eCross contamination\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"color: #0000ff;\"\u003eNumber of vacuum ports\/turrets\/nozzles to be served\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"color: #0000ff;\"\u003eTotal length of pipe\/hose\/tubing in system\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"color: #0000ff;\"\u003eInner diameter of pipe\/hose\/tubing in system\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"color: #0000ff;\"\u003eConductance of tubing\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"color: #0000ff;\"\u003ePressure differential\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"color: #0000ff;\"\u003eNoise\/Sound Level of multiple pumps operating simultaneously\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"color: #0000ff;\"\u003eCost of installing pipe\/tubing\/hose versus stand alone dedicated vacuum pumps\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"color: #0000ff;\"\u003eChemical compatibility of process emissions and wetted parts of system and pump\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan style=\"color: #000000;\"\u003eOur engineers are eager to work with you to provide a complete vacuum solution, including point of use turret\/nozzle to pump. We can assist you in design of traditional metal turret systems, as well as new design PTFE, chemical duty turrets and valves.\u003c\/span\u003e\u003c\/p\u003e","brand":"consult_g_","offers":[{"title":"Default Title","offer_id":34902866825,"sku":null,"price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0755\/2467\/products\/house-vacuum-and-networked-vacuum-238360658016.png?v=1779796228"},{"product_id":"specialty-vacuum-pumps","title":"Specialty Vacuum Pumps","description":"\u003cp\u003eHigh concentrations of O2 require special safety precautions. Concentrated oxygen combined with hydrocarbon oil creates an explosion hazard. We offer many brands, styles and sizes of vacuum pumps prepared for oxygen services. Fomblin prepared or fomblinized vacuum pumps are available for any application volume. \u003ca href=\"http:\/\/www.chemtechsci.com\/pages\/contact-us\"\u003e\u003cstrong\u003eContact us\u003c\/strong\u003e\u003c\/a\u003e for expert pump selection, set up and process assistance. Chemtech Scientific expert set up and operation support is complimentary with all vacuum pump purchases.\u003c\/p\u003e","brand":"consult_g_","offers":[{"title":"Default Title","offer_id":34902892489,"sku":null,"price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0755\/2467\/products\/specialty-vacuum-pumps-238361378912.png?v=1779797147"},{"product_id":"shortpath-distillation-1","title":"ShortPath Distillation","description":"\u003cp\u003eChemtech Scientific Vacuum Engineers, Chemists and Vacuum Pump Mechanics consider the following factors in selecting the perfect performing and lowest maintenance Short Path Distillation vacuum pumps:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan style=\"color: #0000ff;\"\u003ePartial pressure of solvent\/ material to be fractioned out of product\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"color: #0000ff;\"\u003eUltimate pressure of vacuum pump\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"color: #0000ff;\"\u003eLatent heat of vaporization\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"color: #0000ff;\"\u003eTemperature of heat bath\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"color: #0000ff;\"\u003eTemperature of condenser or cold trap\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"color: #0000ff;\"\u003eTemperature of circulating bath\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"color: #0000ff;\"\u003eVolume of  distillation flask\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"color: #0000ff;\"\u003eSolvent expansion ratio\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"color: #0000ff;\"\u003ePumping speed of vacuum pump\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"color: #0000ff;\"\u003eChemical compatibility of product fractions and wetted parts of system and pump\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan style=\"color: #000000;\"\u003eYour process can be accomplished with a higher maintenance oil sealed rotary vane pump or a Dry, oil free PTFE Diaphragm pump. Your lab will enjoy many benefits when processing product with a clean, dry, Chemical Duty vacuum pump and eliminate oil changes and the risk of oil migrating to contaminate your product\/samples. However, Dry high vacuum pumps are considerably higher cost. 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However, Dry high vacuum pumps are considerably higher cost. A mechanical oil sealed pump will also do the job.\n\u003cdiv style=\"width: 50%; float: left; margin-left: 1.5%; margin-right: 1.5%; margin-top: 0px;\"\u003e\n\u003cp\u003eMake your selection below.\u003c\/p\u003e\n\u003c\/div\u003e\n.","brand":"consult_g_2","offers":[{"title":"Default Title","offer_id":34935671369,"sku":null,"price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0755\/2467\/products\/drying-or-reaction-flash-over-5-liters-235539398752.png?v=1779797154"},{"product_id":"up-to-9-liter-collector-size","title":"Up to 9 liter collector size","description":"Your process can be accomplished with a higher maintenance oil sealed rotary vane pump or a Dry, oil free PTFE Diaphragm pump. 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General laboratory vacuum of 1\/10 atmosphere may not move these fluids rapidly and efficiently. Vacuum systems approaching 1\/100 of atmosphere pressure will provide sufficient pressure differential for these fluids. Please select the number of ports\/turrets\/nozzles in your system form the options below to arrive at the pumping speed required.\u003c\/p\u003e","brand":"consult_g_5","offers":[{"title":"Default Title","offer_id":34941431753,"sku":null,"price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0755\/2467\/products\/5-000-to-50-000-centipoises-viscous-honey-to-ketchup-238370586720.png?v=1779796718"},{"product_id":"70-000-to-300-000-cps-very-viscous-mustard-to-toothpaste","title":"70,000 to 300,000 cps Very viscous: mustard to toothpaste","description":"\u003cp\u003eThe 70,000 to 300,000 cps range in viscosity fluids require more pressure differential to to move rapidly. General laboratory vacuum of 1\/10 atmosphere may not move these fluids rapidly and efficiently. Vacuum systems below 1\/100 of atmosphere pressure will provide sufficient pressure differential for these fluids. Please select the number of ports\/turrets\/nozzles in your system form the options below to arrive at the pumping speed required.\u003c\/p\u003e","brand":"consult_g_5","offers":[{"title":"Default Title","offer_id":34941584201,"sku":null,"price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0755\/2467\/products\/70-000-to-300-000-cps-very-viscous-mustard-to-toothpaste-238370521184.png?v=1779797154"},{"product_id":"belt-driven-oil-sealed","title":"Belt Driven Oil Sealed","description":"","brand":"consult_g_6","offers":[{"title":"Default Title","offer_id":34941916617,"sku":null,"price":2571.4,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0755\/2467\/products\/belt-driven-oil-sealed-235570233440.jpg?v=1779797194"},{"product_id":"direct-drive-oil-sealed","title":"Direct Drive Oil Sealed","description":"","brand":"consult_g_6","offers":[{"title":"Default Title","offer_id":34942119049,"sku":null,"price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0755\/2467\/products\/direct-drive-oil-sealed-235570200672.jpg?v=1779797159"},{"product_id":"dry-chemical-duty-scroll","title":"Dry Chemical Duty Scroll","description":"","brand":"consult_g_6","offers":[{"title":"Default Title","offer_id":34942357641,"sku":null,"price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0755\/2467\/products\/dry-chemical-duty-scroll-235570331744.jpg?v=1779797166"},{"product_id":"oil-sealed-vacuum-pump","title":"Oil Sealed Vacuum Pump","description":"","brand":"consult_g_7","offers":[{"title":"Default Title","offer_id":34942565193,"sku":null,"price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0755\/2467\/products\/oil-sealed-vacuum-pump-235570364512.png?v=1779796199"},{"product_id":"dry-oil-free-vacuum-pump","title":"Dry Oil-free Vacuum Pump","description":"","brand":"consult_g_7","offers":[{"title":"Default Title","offer_id":34942655625,"sku":null,"price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0755\/2467\/products\/dry-oil-free-vacuum-pump-235570430048.jpg?v=1779796216"},{"product_id":"lithium-bromide-absorption-chiller","title":"Lithium Bromide Absorption Chiller","description":"\u003cp\u003eLithium Bromide is an aggressive contaminant in a vacuum pump. Due to their much lower operating temperature, generous oil supply and oil return (returning cleaner oil from high in the oil case), the Welch Douseal vacuum pumps are the most durable and best performing tool for the Refrigeration Services professional.\u003c\/p\u003e\n\u003cp\u003eYou will size the pump perfectly to your system by selecting the unit's tonnage below.\u003c\/p\u003e","brand":"consult_g_8","offers":[{"title":"Default Title","offer_id":34942822793,"sku":null,"price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0755\/2467\/products\/lithium-bromide-absorption-chiller-238368555104.png?v=1779797163"},{"product_id":"refrigeration-recovery","title":"Refrigeration Recovery","description":"","brand":"consult_g_8","offers":[{"title":"Default Title","offer_id":34942948873,"sku":null,"price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0755\/2467\/products\/refrigeration-recovery-235852300384.png?v=1779793750"},{"product_id":"hcfc-cfc-or-ammonia-chillers","title":"HCFC, CFC or Ammonia Chillers","description":"","brand":"consult_g_8","offers":[{"title":"Default Title","offer_id":34943214025,"sku":null,"price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0755\/2467\/products\/hcfc-cfc-or-ammonia-chillers-235852267616.png?v=1779797160"},{"product_id":"rooftop-units-rtus","title":"RoofTop Units \/ RTUs","description":"","brand":"consult_g_8","offers":[{"title":"Default Title","offer_id":34943301449,"sku":null,"price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0755\/2467\/products\/rooftop-units-rtus-235852333152.png?v=1779796805"},{"product_id":"cold-storage","title":"Cold Storage","description":"","brand":"consult_g_8","offers":[{"title":"Default Title","offer_id":34943345865,"sku":null,"price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0755\/2467\/products\/cold-storage-235852202080.png?v=1779793756"},{"product_id":"welch-ilmvac-titan4","title":"Welch-Ilmvac Titan4","description":"","brand":"consult_g_9","offers":[{"title":"Default Title","offer_id":34943599881,"sku":null,"price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0755\/2467\/products\/welch-ilmvac-titan4-235858526304.jpg?v=1779797155"},{"product_id":"vacuubrand-vario-chemistry-pumping-unit-pc-3012-nt-vario-duo-1","title":"Vacuubrand VARIO® chemistry pumping unit PC 3012 NT VARIO DUO","description":"","brand":"consult_g_9","offers":[{"title":"Default Title","offer_id":34943899209,"sku":null,"price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0755\/2467\/products\/vacuubrand-vario-chemistry-pumping-unit-pc-3012-nt-vario-duo-235858559072.jpg?v=1779795933"},{"product_id":"oxygen-service","title":"Oxygen Service","description":"","brand":"consult_g_10","offers":[{"title":"Default Title","offer_id":34944247241,"sku":null,"price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0755\/2467\/products\/oxygen-service-238366326880.png?v=1779793759"},{"product_id":"other","title":"Other","description":"\u003cp\u003eLaboratory vacuum is used for thousands of various processes and applications.\u003c\/p\u003e\n\u003cp\u003eWhile it is not possible to address all potential uses for vacuum in one app, we have the in-depth understanding of vacuum principles, which allows us to assist with any laboratory vacuum need, including pump selection, troubleshooting, maintenance and repair.\u003c\/p\u003e\n\u003cp\u003ePlease \u003cspan style=\"color: #0000ff;\"\u003e\u003ca href=\"https:\/\/www.chemtechsci.com\/pages\/contact-us\" style=\"color: #0000ff;\"\u003eContact US\u003c\/a\u003e\u003c\/span\u003e with any vacuum needs.\u003c\/p\u003e","brand":"consult_g_10","offers":[{"title":"Default Title","offer_id":34944397513,"sku":null,"price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0755\/2467\/products\/other-238366294112.png?v=1779793749"},{"product_id":"welch-ptfe-diaphragm-pump","title":"Welch PTFE diaphragm pump","description":"\u003cp\u003eFor 1 -10 liter Rotary Flask your process will operate well with either a Welch Self cleaning PTFE diaphragm vacuum pump or basic Welch PTFE diaphragm pump. The self cleaning pump has additional accessories, including a pressure gauge, anti-bumping switch, inlet and exhaust catch-pots and cleans itself after use. All vacuum pumps on this site are the best in their class in quality and performance for the specific applications and processes. Please contact us for assistance.\u003cbr\u003e\u003c\/p\u003e","brand":"consult_g_1_1","offers":[{"title":"Default Title","offer_id":34951084489,"sku":null,"price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0755\/2467\/products\/welch-ptfe-diaphragm-pump-235572822112.png?v=1779793753"},{"product_id":"10-to-20-liter-rotary-flask","title":"10 to 20 liter Rotary Flask","description":"\u003cp\u003eYour process will operate well with either a Self cleaning PTFE diaphragm vacuum pump or basic PTFE diaphragm vacuum pump. The self cleaning vacuum pump has additional accessories, including a pressure gauge, anti-bumping switch, inlet and exhaust catch-pots and cleans itself after use. The basic PTFE diaphragm pump below will work for your process. The choice is a matter of preference.\u003c\/p\u003e","brand":"consult_g_1_1","offers":[{"title":"Default Title","offer_id":34951097609,"sku":null,"price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0755\/2467\/products\/10-to-20-liter-rotary-flask-235572854880.png?v=1779793960"},{"product_id":"10-to-20-liter-rotary-flask-1","title":"10 to 20 liter Rotary Flask","description":"\u003cp\u003eYour process will operate well with either a Self cleaning PTFE diaphragm vacuum pump or basic PTFE diaphragm vacuum pump. The self cleaning vacuum pump has additional accessories, including a pressure gauge, anti-bumping switch, inlet and exhaust catch-pots and cleans itself after use. 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