{"product_id":"air-operated-double-diaphragm-pump-1-2-in-durable-ptfe-diaphragms","title":"Air-Operated Double Diaphragm Pump 1\/2 in - Durable PTFE Diaphragms","description":"\u003cp\u003eIn this review of the air-operated double diaphragm pump, the bottom line is clear: this is a workhorse for moving low viscosity fluids where chemical resistance and leak-free construction matter. The reviewer found the pump best suited to industrial or shop environments that need a portable, pneumatic solution for diesel, oil, solvents, and similar liquids. The combination of \u003cstrong\u003ePTFE diaphragms\u003c\/strong\u003e and a polypropylene housing makes it a practical choice when corrosion resistance and a high flow rate up to 13.2 GPM are priorities.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePTFE diaphragms:\u003c\/strong\u003e Deliver durable, corrosion-proof sealing suited for chemical and petroleum transfer without rapid wearing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePolypropylene body:\u003c\/strong\u003e Provides a bolted, leak-resistant housing that stands up to corrosive fluids and extended service.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAir-operated design:\u003c\/strong\u003e Uses a modular stainless air valve and externally available distribution system for smooth, low-pulsation operation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStrong performance:\u003c\/strong\u003e Handles up to 13.2 GPM flow and a max head lift of about 226.4 ft, allowing effective transfer and higher lift applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompact ports:\u003c\/strong\u003e 1\/2 in inlet and outlet with a 1\/4 in FNPT air inlet make it compatible with standard pneumatic hookups and fittings.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThis pump is aimed at maintenance shops, small refineries, and industrial sites that need a pneumatic pump able to transfer \u003cstrong\u003efuel and light chemicals\u003c\/strong\u003e reliably. It suits technicians who appreciate a bolted, corrosion-resistant polypropylene body and PTFE diaphragms for longevity when handling diesel, gasoline, hydraulic fluid, and similar low viscosity liquids.\u003c\/p\u003e\n\u003cp\u003eIt is less appropriate for applications requiring precise metering, extremely viscous fluids, or electrically driven continuous pumping. Customers needing rapid, guaranteed priming in every circumstance should test priming speed in their setup, since user reports indicate mixed priming experience in different conditions.\u003c\/p\u003e\n\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDurable PTFE diaphragms and corrosion-resistant polypropylene housing increase service life with aggressive fluids.\u003c\/li\u003e\n\u003cli\u003eHigh maximum flow rate and substantial head lift support demanding transfer tasks and higher elevation moves.\u003c\/li\u003e\n\u003cli\u003eModular stainless air valve and low-pulsation design provide smoother air operation and quicker changeover.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ePriming speed and functionality are mixed among users, so initial setup and tuning may be required for best performance.\u003c\/li\u003e\n\u003cli\u003eNot intended for very high viscosity fluids or precision metering applications.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel type\u003c\/td\u003e\n\u003ctd\u003eAir-operated double diaphragm pump\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDiaphragm material\u003c\/td\u003e\n\u003ctd\u003ePTFE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBody material\u003c\/td\u003e\n\u003ctd\u003ePolypropylene\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInlet \/ Outlet\u003c\/td\u003e\n\u003ctd\u003e1\/2 in (12.7 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAir inlet\u003c\/td\u003e\n\u003ctd\u003e1\/4 in FNPT (6.35 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax flow rate\u003c\/td\u003e\n\u003ctd\u003e13.2 GPM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax head lift \/ Max temperature\u003c\/td\u003e\n\u003ctd\u003e226.4 ft \/ 150 F (69 m \/ 66 C)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eThe air-operated double diaphragm pump is a solid value for industrial and maintenance uses that demand chemical resistance, decent flow, and a leak-proof polypropylene housing. Buyers who need a pneumatic transfer pump for diesel, oils, and low viscosity fluids will appreciate the PTFE diaphragms and modular air valve, though they should allow time for setup and priming adjustments to achieve best results.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eCan this pump handle gasoline and diesel?\u003c\/strong\u003e\u003cbr\u003eYes; the pump is designed for petroleum products such as gasoline and diesel and for other low viscosity fluids.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat are the inlet and air port sizes?\u003c\/strong\u003e\u003cbr\u003eThe liquid inlet and outlet are 1\/2 in and the air inlet is 1\/4 in FNPT.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the maximum temperature and pressure?\u003c\/strong\u003e\u003cbr\u003eMaximum recommended temperature is about 150 F (66 C) and maximum pressure is 100 psi.\u003c\/p\u003e","brand":"VEVOR","offers":[{"title":"Default Title","offer_id":48645501583579,"sku":"B0CP3KCHY8","price":105.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/61Uix0obuRL._AC_SL1500.jpg?v=1778654545","url":"https:\/\/gearmusthave.com\/products\/air-operated-double-diaphragm-pump-1-2-in-durable-ptfe-diaphragms","provider":"GearMustHave","version":"1.0","type":"link"}