{"product_id":"welch-1400b-01-duoseal-belt-drive-vacuum-pump-115v","title":"Welch 1400B-01 DUOSEAL Belt Drive Vacuum Pump 115V","description":"\u003ctable width=\"627\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd width=\"627\" colspan=\"2\"\u003e\n\u003cp\u003eWelch 1400B-01 DuoSeal Vacuum Pump (115V 60Hz 1PH) is a ready-to-run, complete belt-drive rotary vane pump. It offers 0.9 CFM pumping speed and reaches 1×10⁻⁴ Torr ultimate vacuum. Perfect for small lab applications including Schlenk lines, vacuum ovens, freeze drying, and degassing. The legendary belt-drive system lowers RPM for cooler, quieter operation and exceptional longevity. Comes with initial fill of DuoSeal oil.\u003c\/p\u003e\n\u003cp\u003eThe Welch 1400B-01 DuoSeal Vacuum Pump is a rugged and robust vacuum pump for applications requiring pressures \u0026lt; 1 Torr. The Welch vacuum pump 1400B-01 achieves \u0026lt; 0.0001 Torr with a pumping speed of 25 liters\/min (0.9 CFM).\u003c\/p\u003e\n\u003cp\u003eRugged oil-seal pumps for a wide variety of vacuum needs, including\u003cbr\u003eSchlenk drying lines, freeze drying, degassing, concentrations, distillations,\u003cbr\u003eand more. Pulley drive enables low pump rpm operation – reduces friction,\u003cbr\u003eoil temperature, and oil degradation. Large oil reservoir minimizes\u003cbr\u003econtamination effects and extends maintenance intervals. Use of a cold\u003cbr\u003etrap is recommended to protect the pump and enhance vacuum levels.\u003c\/p\u003e\n\u003cp\u003eTwo stage, oil sealed vacuum pumps should not be operated continuously at pressures above 1 Torr. Operating this DUOSEAL pump at higher pressure will induce excessive oil spraying from the exhaust of the vacuum pump causing premature failure and void warranty. Please consult your Chemtech Scientific Representative for consultation, should the ultimate pressure of your process run above 1 Torr.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0755\/2467\/files\/Welh_1400B-01_CS_Flyer.png?v=1779308044\" alt=\"\"\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"298\"\u003e\u003cstrong\u003eWhat's included\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd width=\"329\"\u003e1 qt DuoSeal vacuum pump oil, 1407K-11\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"298\"\u003e\u003cstrong\u003eCommon accessory, not included\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd width=\"329\"\u003eExhaust filter 1417\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePumping Speed\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.9 CFM (25 l\/min)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMax. Vacuum\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.001 torr\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOil Capacity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.62 qt(0.59 l)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTubing Needed\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e7\/16\"(11 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eExhaust \/ Intake threads\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3\/4-20\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePump RPM\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e580\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDimensions LxWxH\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e17.8\"x9\"x12.6\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e70 lb (31.8 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWiring\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e115V, 60 hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp style=\"white-space: pre-wrap;\" dir=\"auto\"\u003e \u003c\/p\u003e\n\u003ch4 style=\"white-space: pre-wrap;\" dir=\"auto\"\u003eFrequently Asked Questions\u003c\/h4\u003e\n\u003cp style=\"white-space: pre-wrap;\" dir=\"auto\"\u003e\u003cstrong\u003eQ: What is the pumping speed of the Welch 1400B-01?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"white-space: pre-wrap;\" dir=\"auto\"\u003eA: The Welch 1400B-01 has a pumping speed of 0.9 CFM (25 L\/min).\u003c\/p\u003e\n\u003cp style=\"white-space: pre-wrap;\" dir=\"auto\"\u003e\u003cstrong\u003eQ: How often should I change the oil?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"white-space: pre-wrap;\" dir=\"auto\"\u003eA: We recommend changing the oil every 3,000–4,000 hours of operation or every 6 months, whichever comes first.\u003c\/p\u003e\n\u003cp style=\"white-space: pre-wrap;\" dir=\"auto\"\u003e\u003cstrong\u003eQ: Do you offer repair services and parts for this pump?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"white-space: pre-wrap;\" dir=\"auto\"\u003eA: Yes. We have genuine Welch repair kits and provide full rebuild services for the 1400 series.\u003c\/p\u003e\n\u003cp style=\"white-space: pre-wrap;\" dir=\"auto\"\u003e\u003cstrong\u003eQ: Does this pump come fully mounted? \u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"white-space: pre-wrap;\" dir=\"auto\"\u003eA: Yes, the 1400B-01 is a fully mounted pump, complete with base and motor.\u003c\/p\u003e\n\u003cp dir=\"auto\" style=\"white-space: pre-wrap;\"\u003e\u003cstrong\u003eQ: Where can I find the Owner’s Manual for the Welch 1400B-01?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp dir=\"auto\" style=\"white-space: pre-wrap;\"\u003eA: The official Welch DUOSEAL Operation and Maintenance Manual for the 1400 series is available for download on our website, \u003cstrong\u003e\u003ca rel=\"noopener noreferrer\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0755\/2467\/files\/OWNER_S_MANUAL_1400B-01.pdf?v=1592759421\" title=\"Welch 1400B-01 DuoSeal Vacuum Pump\" target=\"_blank\"\u003eWelch 1400B-01 Owner's Manual.pdf\u003c\/a\u003e\u003c\/strong\u003e . It includes detailed setup instructions, oil change procedures, troubleshooting, and safety guidelines.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eOur \u003ca rel=\"noopener\" href=\"https:\/\/www.chemtechsci.com\/blogs\/news\" title=\"Chemtech Scientific Blog\" target=\"_blank\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eBlog\u003c\/span\u003e\u003c\/a\u003e\u003c\/strong\u003e\u003c\/p\u003e","brand":"Welch","offers":[{"title":"Default Title","offer_id":1136583548,"sku":"1400B-01","price":2526.52,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0755\/2467\/products\/welch-1400b-01-duoseal-belt-drive-vacuum-pump-115v-25489703272597.jpg?v=1779794271","url":"https:\/\/www.chemtechsci.com\/products\/welch-1400b-01-duoseal-belt-drive-vacuum-pump-115v","provider":"Chemtech Scientific Incorporated","version":"1.0","type":"link"}