{"product_id":"yamada-ndp-15bst","title":"Yamada NDP-15BST — 1\/2\" Stainless Steel Diaphragm Pump, PTFE Diaphragm","description":"\u003cp\u003eYamada's NDP-15BST is a 1\/2\" AODD pump in stainless steel, moving up to 13.5 GPM. It passes solids to 1\/32\" (1 mm) and handles fluid to 212°F (100°C).\u003c\/p\u003e\u003cp\u003e316 stainless construction is specified where corrosion resistance and cleanability both matter — dairy, brewing, fine chemicals and pharmaceutical transfer. PTFE diaphragms and balls give near-universal chemical resistance, covering solvents, concentrated acids and oxidizers that destroy rubber elastomers, at the cost of a slightly lower displacement per stroke. Ball check valves are the right choice for flooded-suction installations.\u003c\/p\u003e\u003cp\u003eIt runs on plant air with no electrical supply at the pump, self-primes, and will sit stalled against a closed discharge without damage — useful on intermittent or dead-headed duty.\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-15BST\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eYamada item no.\u003c\/th\u003e\n\u003ctd\u003e851961\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-15\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003ePort size\u003c\/th\u003e\n\u003ctd\u003e1\/2\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eMaximum flow\u003c\/th\u003e\n\u003ctd\u003e13.5 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\/32\" (1 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eDisplacement per cycle\u003c\/th\u003e\n\u003ctd\u003e0.0338 gal (128 cc)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eMaximum dry suction lift\u003c\/th\u003e\n\u003ctd\u003e8 ft (flat check valve)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eMaximum fluid temperature\u003c\/th\u003e\n\u003ctd\u003e212°F (100°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\u003eStainless Steel (316)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eDiaphragm material\u003c\/th\u003e\n\u003ctd\u003ePTFE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eBall material\u003c\/th\u003e\n\u003ctd\u003ePTFE\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\/8\" Female NPT\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eRepair kit\u003c\/th\u003e\n\u003ctd\u003eK15-MT\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-15BST.pdf\" target=\"_blank\" rel=\"noopener\"\u003eDownload the NDP-15BST specification sheet (PDF)\u003c\/a\u003e\u003c\/p\u003e","brand":"Yamada","offers":[{"title":"Default Title","offer_id":52476000272686,"sku":"NDP-15BST","price":1765.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0979\/7681\/1822\/files\/NDP-15BST.jpg?v=1787219917","url":"https:\/\/kadpumpsandparts.com\/products\/yamada-ndp-15bst","provider":"KAD Pumps \u0026 Parts","version":"1.0","type":"link"}