{"product_id":"welch-1397-duoseal-unmounted-pump","title":"Welch 1397 DuoSeal Unmounted Pump","description":"\u003cp dir=\"auto\" bis_size='{\"x\":12,\"y\":9,\"w\":560,\"h\":19,\"abs_x\":621,\"abs_y\":-29}'\u003eWelch 1397 DUOSEAL Vacuum Pump – 23 CFM (Unmounted)\u003c\/p\u003e\n\u003cp dir=\"auto\" style=\"white-space: pre-wrap;\" bis_size='{\"x\":12,\"y\":45,\"w\":560,\"h\":78,\"abs_x\":621,\"abs_y\":7}'\u003eThe \u003cstrong bis_size='{\"x\":38,\"y\":45,\"w\":143,\"h\":19,\"abs_x\":647,\"abs_y\":7}'\u003eWelch 1397 DUOSEAL\u003c\/strong\u003e is a high-capacity, belt-drive rotary vane vacuum pump designed for applications requiring strong pumping speed and deep vacuum. With \u003cstrong bis_size='{\"x\":12,\"y\":64,\"w\":534,\"h\":38,\"abs_x\":621,\"abs_y\":26}'\u003e23 CFM (650 L\/min)\u003c\/strong\u003e free air displacement, it is well-suited for large laboratory systems, industrial processes, and pilot plant operations.\u003c\/p\u003e\n\u003cp dir=\"auto\" style=\"white-space: pre-wrap;\" bis_size='{\"x\":12,\"y\":139,\"w\":560,\"h\":78,\"abs_x\":621,\"abs_y\":101}'\u003eWelch DuoSeal 1397 is an unmounted pump and a component to a complete belt driven vacuum pump. The Welch DuoSeal Unmounted Pump 1397 requires a base, motor and belt to generate vacuum. This product can only be used as a drop-in replacement for the pump component of a complete vacuum pump.\u003c\/p\u003e\n\u003ch4 dir=\"auto\" bis_size='{\"x\":12,\"y\":233,\"w\":560,\"h\":19,\"abs_x\":621,\"abs_y\":195}'\u003eKey Features\u003c\/h4\u003e\n\u003cul dir=\"auto\" bis_size='{\"x\":12,\"y\":267,\"w\":560,\"h\":97,\"abs_x\":621,\"abs_y\":229}'\u003e\n\u003cli bis_size='{\"x\":52,\"y\":267,\"w\":520,\"h\":19,\"abs_x\":661,\"abs_y\":229}'\u003e23 CFM (650 L\/min) pumping speed\u003c\/li\u003e\n\u003cli bis_size='{\"x\":52,\"y\":287,\"w\":520,\"h\":19,\"abs_x\":661,\"abs_y\":249}'\u003eUltimate vacuum down to 1 × 10⁻⁴ Torr\u003c\/li\u003e\n\u003cli bis_size='{\"x\":52,\"y\":306,\"w\":520,\"h\":19,\"abs_x\":661,\"abs_y\":268}'\u003eLarge oil reservoir for cooler operation and extended oil life\u003c\/li\u003e\n\u003cli bis_size='{\"x\":52,\"y\":326,\"w\":520,\"h\":19,\"abs_x\":661,\"abs_y\":288}'\u003eDurable DUOSEAL rotary vane design\u003c\/li\u003e\n\u003cli bis_size='{\"x\":52,\"y\":345,\"w\":520,\"h\":19,\"abs_x\":661,\"abs_y\":307}'\u003eEasy maintenance and service access\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4 dir=\"auto\" bis_size='{\"x\":12,\"y\":379,\"w\":560,\"h\":19,\"abs_x\":621,\"abs_y\":341}'\u003eIdeal Applications\u003c\/h4\u003e\n\u003cul dir=\"auto\" bis_size='{\"x\":12,\"y\":413,\"w\":560,\"h\":97,\"abs_x\":621,\"abs_y\":375}'\u003e\n\u003cli bis_size='{\"x\":52,\"y\":413,\"w\":520,\"h\":19,\"abs_x\":661,\"abs_y\":375}'\u003eLarge vacuum ovens and drying chambers\u003c\/li\u003e\n\u003cli bis_size='{\"x\":52,\"y\":432,\"w\":520,\"h\":19,\"abs_x\":661,\"abs_y\":394}'\u003ePilot plant and scale-up operations\u003c\/li\u003e\n\u003cli bis_size='{\"x\":52,\"y\":452,\"w\":520,\"h\":19,\"abs_x\":661,\"abs_y\":414}'\u003eIndustrial vacuum processes\u003c\/li\u003e\n\u003cli bis_size='{\"x\":52,\"y\":471,\"w\":520,\"h\":19,\"abs_x\":661,\"abs_y\":433}'\u003eVacuum distillation\u003c\/li\u003e\n\u003cli bis_size='{\"x\":52,\"y\":491,\"w\":520,\"h\":19,\"abs_x\":661,\"abs_y\":453}'\u003eLaboratory systems requiring high flow\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"auto\" style=\"white-space: pre-wrap;\" bis_size='{\"x\":12,\"y\":525,\"w\":560,\"h\":39,\"abs_x\":621,\"abs_y\":487}'\u003e\u003cstrong bis_size='{\"x\":12,\"y\":525,\"w\":348,\"h\":19,\"abs_x\":621,\"abs_y\":487}'\u003eNeed technical advice or compatibility confirmation?\u003c\/strong\u003e Email \u003cstrong bis_size='{\"x\":12,\"y\":544,\"w\":177,\"h\":19,\"abs_x\":621,\"abs_y\":506}'\u003e\u003ca href=\"mailto:support@chemtechsci.com\" rel=\"noopener noreferrer nofollow\" bis_size='{\"x\":12,\"y\":544,\"w\":177,\"h\":19,\"abs_x\":621,\"abs_y\":506}' target=\"_blank\"\u003esupport@chemtechsci.com\u003c\/a\u003e\u003c\/strong\u003e or call \u003cstrong bis_size='{\"x\":234,\"y\":544,\"w\":100,\"h\":19,\"abs_x\":843,\"abs_y\":506}'\u003e(484) 424-9415\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp bis_size='{\"x\":12,\"y\":580,\"w\":560,\"h\":19,\"abs_x\":621,\"abs_y\":542}'\u003e \u003c\/p\u003e\n\u003ctable width=\"604\" bis_size='{\"x\":12,\"y\":615,\"w\":560,\"h\":253,\"abs_x\":621,\"abs_y\":577}'\u003e\n\u003ctbody bis_size='{\"x\":15,\"y\":618,\"w\":554,\"h\":247,\"abs_x\":624,\"abs_y\":580}'\u003e\n\u003ctr bis_size='{\"x\":15,\"y\":618,\"w\":554,\"h\":39,\"abs_x\":624,\"abs_y\":580}'\u003e\n\u003ctd width=\"323\" bis_size='{\"x\":15,\"y\":618,\"w\":295,\"h\":39,\"abs_x\":624,\"abs_y\":580}'\u003e\n\u003cp bis_size='{\"x\":17,\"y\":620,\"w\":291,\"h\":19,\"abs_x\":626,\"abs_y\":582}'\u003e\u003cstrong bis_size='{\"x\":17,\"y\":620,\"w\":103,\"h\":19,\"abs_x\":626,\"abs_y\":582}'\u003ePumping Speed\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"281\" bis_size='{\"x\":312,\"y\":618,\"w\":256,\"h\":39,\"abs_x\":921,\"abs_y\":580}'\u003e\n\u003cp bis_size='{\"x\":314,\"y\":620,\"w\":252,\"h\":19,\"abs_x\":923,\"abs_y\":582}'\u003e17.7 CFM (500 l\/min)\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr bis_size='{\"x\":15,\"y\":660,\"w\":554,\"h\":39,\"abs_x\":624,\"abs_y\":622}'\u003e\n\u003ctd width=\"323\" bis_size='{\"x\":15,\"y\":660,\"w\":295,\"h\":39,\"abs_x\":624,\"abs_y\":622}'\u003e\n\u003cp bis_size='{\"x\":17,\"y\":662,\"w\":291,\"h\":19,\"abs_x\":626,\"abs_y\":624}'\u003e\u003cstrong bis_size='{\"x\":17,\"y\":662,\"w\":88,\"h\":19,\"abs_x\":626,\"abs_y\":624}'\u003eMax. Vacuum\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"281\" bis_size='{\"x\":312,\"y\":660,\"w\":256,\"h\":39,\"abs_x\":921,\"abs_y\":622}'\u003e\n\u003cp bis_size='{\"x\":314,\"y\":662,\"w\":252,\"h\":19,\"abs_x\":923,\"abs_y\":624}'\u003e0.001 torr\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr bis_size='{\"x\":15,\"y\":702,\"w\":554,\"h\":39,\"abs_x\":624,\"abs_y\":664}'\u003e\n\u003ctd width=\"323\" bis_size='{\"x\":15,\"y\":702,\"w\":295,\"h\":39,\"abs_x\":624,\"abs_y\":664}'\u003e\n\u003cp bis_size='{\"x\":17,\"y\":704,\"w\":291,\"h\":19,\"abs_x\":626,\"abs_y\":666}'\u003e\u003cstrong bis_size='{\"x\":17,\"y\":704,\"w\":78,\"h\":19,\"abs_x\":626,\"abs_y\":666}'\u003eOil Capacity\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"281\" bis_size='{\"x\":312,\"y\":702,\"w\":256,\"h\":39,\"abs_x\":921,\"abs_y\":664}'\u003e\n\u003cp bis_size='{\"x\":314,\"y\":704,\"w\":252,\"h\":19,\"abs_x\":923,\"abs_y\":666}'\u003e1.25 qt(1.2 l)\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr bis_size='{\"x\":15,\"y\":743,\"w\":554,\"h\":39,\"abs_x\":624,\"abs_y\":705}'\u003e\n\u003ctd width=\"323\" bis_size='{\"x\":15,\"y\":743,\"w\":295,\"h\":39,\"abs_x\":624,\"abs_y\":705}'\u003e\n\u003cp bis_size='{\"x\":17,\"y\":745,\"w\":291,\"h\":19,\"abs_x\":626,\"abs_y\":707}'\u003e\u003cstrong bis_size='{\"x\":17,\"y\":745,\"w\":100,\"h\":19,\"abs_x\":626,\"abs_y\":707}'\u003eTubing Needed\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"281\" bis_size='{\"x\":312,\"y\":743,\"w\":256,\"h\":39,\"abs_x\":921,\"abs_y\":705}'\u003e\n\u003cp bis_size='{\"x\":314,\"y\":745,\"w\":252,\"h\":19,\"abs_x\":923,\"abs_y\":707}'\u003e1-5\/8(41)\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr bis_size='{\"x\":15,\"y\":785,\"w\":554,\"h\":39,\"abs_x\":624,\"abs_y\":747}'\u003e\n\u003ctd width=\"323\" bis_size='{\"x\":15,\"y\":785,\"w\":295,\"h\":39,\"abs_x\":624,\"abs_y\":747}'\u003e\n\u003cp bis_size='{\"x\":17,\"y\":787,\"w\":291,\"h\":19,\"abs_x\":626,\"abs_y\":749}'\u003e\u003cstrong bis_size='{\"x\":17,\"y\":787,\"w\":159,\"h\":19,\"abs_x\":626,\"abs_y\":749}'\u003eExhaust \/ Intake threads\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"281\" bis_size='{\"x\":312,\"y\":785,\"w\":256,\"h\":39,\"abs_x\":921,\"abs_y\":747}'\u003e\n\u003cp bis_size='{\"x\":314,\"y\":787,\"w\":252,\"h\":19,\"abs_x\":923,\"abs_y\":749}'\u003e1.75-20\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr bis_size='{\"x\":15,\"y\":826,\"w\":554,\"h\":39,\"abs_x\":624,\"abs_y\":788}'\u003e\n\u003ctd width=\"323\" bis_size='{\"x\":15,\"y\":826,\"w\":295,\"h\":39,\"abs_x\":624,\"abs_y\":788}'\u003e\n\u003cp bis_size='{\"x\":17,\"y\":828,\"w\":291,\"h\":19,\"abs_x\":626,\"abs_y\":790}'\u003e\u003cstrong bis_size='{\"x\":17,\"y\":828,\"w\":73,\"h\":19,\"abs_x\":626,\"abs_y\":790}'\u003ePump RPM\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"281\" bis_size='{\"x\":312,\"y\":826,\"w\":256,\"h\":39,\"abs_x\":921,\"abs_y\":788}'\u003e\n\u003cp bis_size='{\"x\":314,\"y\":828,\"w\":252,\"h\":19,\"abs_x\":923,\"abs_y\":790}'\u003e400\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"Welch","offers":[{"title":"Default Title","offer_id":1136566756,"sku":"1397","price":6371.91,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0755\/2467\/products\/welch-1397-duoseal-unmounted-pump-25489786601621.jpg?v=1779795925","url":"https:\/\/www.chemtechsci.com\/products\/welch-1397-duoseal-unmounted-pump","provider":"Chemtech Scientific Incorporated","version":"1.0","type":"link"}