{"product_id":"yamada-ndp-20bpc-d","title":"Yamada NDP-20BPC-D — 3\/4\" Polypropylene Diaphragm Drum Pump, Neoprene Diaphragm","description":"\u003cp\u003eThe Yamada NDP-20BPC-D is a 3\/4\" air-operated double-diaphragm pump in polypropylene, rated to 31.7 GPM. It passes solids to 1\/16\" (2.0 mm) and handles fluid to 180°F (82°C).\u003c\/p\u003e\u003cp\u003eA glass-filled polypropylene wetted path handles dilute acids, alkalis and brines without the galvanic issues a metal body brings, making it the usual pick for chemical transfer and wastewater duty. Neoprene diaphragms and balls give balanced service across mild chemicals, oils and water, and are the economical default where nothing aggressive is being moved. Ball check valves are the right choice for flooded-suction installations.\u003c\/p\u003e\u003cp\u003eSupplied as a drum-mount package with dip tube and bung adapter. It self-primes, tolerates running dry, and stalls harmlessly against a closed valve, so it suits batching and intermittent transfer where a centrifugal pump would be a poor fit.\u003c\/p\u003e\u003cp\u003eOrdered online, shipped from Texas, priced well and backed by US support before and after the sale. Send us your application details if you want a second opinion on materials.\u003c\/p\u003e\u003ctable class=\"kad-specs\"\u003e\n\u003ccaption\u003eSpecifications\u003c\/caption\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eYamada\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eModel \/ MPN\u003c\/th\u003e\n\u003ctd\u003eNDP-20BPC-D\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eYamada item no.\u003c\/th\u003e\n\u003ctd\u003eNDP-20BPC-D\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003ePump type\u003c\/th\u003e\n\u003ctd\u003eAir-operated double-diaphragm (AODD)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eSeries\u003c\/th\u003e\n\u003ctd\u003eNDP-20\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003ePort size\u003c\/th\u003e\n\u003ctd\u003e3\/4\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eMaximum flow\u003c\/th\u003e\n\u003ctd\u003e31.7 GPM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eAir supply pressure\u003c\/th\u003e\n\u003ctd\u003e20-100 PSI\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eMaximum fluid discharge pressure\u003c\/th\u003e\n\u003ctd\u003eSame as max air supply (1:1 pump)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eMaximum solids\u003c\/th\u003e\n\u003ctd\u003e1\/16\" (2.0 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eDisplacement per cycle\u003c\/th\u003e\n\u003ctd\u003eRubber 0.163 gal (615 cc) \/ PTFE 0.143 gal (539 cc)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eMaximum dry suction lift\u003c\/th\u003e\n\u003ctd\u003e18 ft\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eMaximum fluid temperature\u003c\/th\u003e\n\u003ctd\u003e180°F (82°C)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eCheck valve type\u003c\/th\u003e\n\u003ctd\u003eBall valve\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eBody \/ wetted materials\u003c\/th\u003e\n\u003ctd\u003ePolypropylene (PPG)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eDiaphragm material\u003c\/th\u003e\n\u003ctd\u003eNeoprene (CR)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eBall material\u003c\/th\u003e\n\u003ctd\u003eNeoprene (CR)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eAir motor\u003c\/th\u003e\n\u003ctd\u003eStandard\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eAir inlet\u003c\/th\u003e\n\u003ctd\u003e1\/4\" Female NPT\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eAir exhaust\u003c\/th\u003e\n\u003ctd\u003e3\/4\" Female NPT\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eOptions\u003c\/th\u003e\n\u003ctd\u003eDrum pump\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003cp class=\"kad-datasheet\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0979\/7681\/1822\/files\/KAD-Spec-Yamada-NDP-20BPC-D.pdf\" target=\"_blank\" rel=\"noopener\"\u003eDownload the NDP-20BPC-D specification sheet (PDF)\u003c\/a\u003e\u003c\/p\u003e","brand":"Yamada","offers":[{"title":"Default Title","offer_id":52476003025198,"sku":"NDP-20BPC-D","price":1545.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0979\/7681\/1822\/files\/NDP-20BPC-D.jpg?v=1787220023","url":"https:\/\/kadpumpsandparts.com\/products\/yamada-ndp-20bpc-d","provider":"KAD Pumps \u0026 Parts","version":"1.0","type":"link"}