{"product_id":"air-operated-double-diaphragm-pump-44gpm-heavy-duty-pneumatic","title":"Air Operated Double Diaphragm Pump 44GPM - Heavy Duty Pneumatic","description":"\u003cp\u003eIn this review of the Air Operated Double Diaphragm Pump the bottom line is simple: this pump is built for demanding fluid transfer tasks where corrosion resistance and a leak-proof housing matter most. It suits workshops and industrial sites that need a pneumatic, non-electric solution for oils, diesel and many chemicals. The single biggest reason to buy is the combination of a full-bolted aluminum alloy body and dual-layer PTFE diaphragms, which together offer rugged sealing and strong chemical resistance that helps avoid downtime from leaks or diaphragm failure.\u003c\/p\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSolid \u0026amp; Leak-Proof Design:\u003c\/strong\u003e The full-bolted aluminum alloy housing provides a durable seal that reduces the risk of leaks and eliminates the need for oil lubrication.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePremium PTFE Diaphragm:\u003c\/strong\u003e Dual-layer PTFE diaphragms offer high corrosion resistance so the pump handles aggressive fluids and extends diaphragm life.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh Flow and Pressure:\u003c\/strong\u003e With a max flow rate of 44 GPM and max pressure of 115 PSI the pump moves large volumes for tank transfers and bulk pumping tasks.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandard Connections:\u003c\/strong\u003e 1-1\/2 in inlet and outlet plus an FNPT 1\/4 in air inlet make it easy to install into existing pneumatic and fluid lines.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLow Noise Operation:\u003c\/strong\u003e The included silencer lowers operational noise and vibration and is detachable for simple maintenance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWide Fluid Compatibility:\u003c\/strong\u003e Rated for waste oil, diesel, gasoline, hydraulic fluids and many detergents, making it versatile across workshops and plants.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThis pump is aimed at industrial users, automotive shops, maintenance crews and facilities that need a pneumatic transfer pump capable of handling oils and corrosive liquids without electricity. It is especially useful where a high flow rate and robust chemical resistance are priorities.\u003c\/p\u003e\n\u003cp\u003eThose who should look elsewhere include operators who require quiet, precision metering at low flow rates or users who need an electrically powered unit for remote control or variable speed drives. Also consider a different design if you need a pump with reinforced support legs, as several users reported support issues under heavy vibration.\u003c\/p\u003e\n\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, full-bolted aluminum construction that minimizes leaks and maintenance.\u003c\/li\u003e\n\u003cli\u003eDual-layer PTFE diaphragms provide excellent corrosion resistance for harsh fluids.\u003c\/li\u003e\n\u003cli\u003eHigh throughput capability at 44 GPM and useful max pressure of 115 PSI for heavy transfers.\u003c\/li\u003e\n\u003cli\u003eQuiet operation with a detachable silencer for easier upkeep.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSome customers reported mixed functionality and broken leg supports, indicating the base or mounts may need reinforcement for very heavy or vibrating installations.\u003c\/li\u003e\n\u003cli\u003ePriming speed can be slow in some conditions, so initial setup may require patience.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax Flow Rate\u003c\/td\u003e\n\u003ctd\u003e44 GPM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax Pressure\u003c\/td\u003e\n\u003ctd\u003e115 PSI\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax Head Lift\u003c\/td\u003e\n\u003ctd\u003e226 ft \/ 69 m\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInlet \/ Outlet Size\u003c\/td\u003e\n\u003ctd\u003e1-1\/2 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAir Inlet\u003c\/td\u003e\n\u003ctd\u003eFNPT 1\/4 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDiaphragm Material\u003c\/td\u003e\n\u003ctd\u003eDual-layer PTFE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHousing Material\u003c\/td\u003e\n\u003ctd\u003eAluminum alloy, full-bolted\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eThe Air Operated Double Diaphragm Pump is a practical choice for shops and industrial sites that need a high-flow, corrosion-resistant pneumatic pump. Its robust aluminum housing and PTFE diaphragms deliver reliable sealing and compatibility with many fluids, offering good value where leak prevention and chemical resistance matter most. Buyers should ensure secure mounting to avoid the reported support issues.\u003c\/p\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eCan this pump handle diesel and waste oil?\u003c\/strong\u003e\u003cbr\u003eYes, the pump is rated for waste oil, diesel and similar petroleum-based fluids thanks to its PTFE diaphragms and aluminum housing.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat are the connection sizes for installation?\u003c\/strong\u003e\u003cbr\u003eThe pump uses 1-1\/2 in inlet and outlet ports and a FNPT 1\/4 in air inlet for pneumatic supply.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs it noisy in operation?\u003c\/strong\u003e\u003cbr\u003eThe pump includes an advanced silencer designed to reduce noise and vibration; the silencer is detachable for cleaning or replacement.\u003c\/p\u003e","brand":"VEVOR","offers":[{"title":"Default Title","offer_id":48195271950555,"sku":"B0CTTN1RY7","price":174.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/71xNISVpdUL._AC_SL1500.jpg?v=1770267856","url":"https:\/\/gearmusthave.com\/products\/air-operated-double-diaphragm-pump-44gpm-heavy-duty-pneumatic","provider":"GearMustHave","version":"1.0","type":"link"}