{"product_id":"zilmet-zhp302bc-well-pressure-tank-79-3-gal-diaphragm","title":"Zilmet zhp302bc Well Pressure Tank 79.3 Gal Diaphragm","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe ZILMET zhp302bc is a 79.3-gallon pre-pressurized diaphragm well pressure tank designed for potable water systems. It regulates system pressure, reduces pump short-cycling, and protects downstream components by maintaining a consistent pressure cushion between pump cycles. A seamless butyl diaphragm separates the air and water chambers, preventing air migration and waterlogging. The carbon steel shell carries a corrosion-resistant powder-coated finish and is rated to 150 psi maximum operating pressure with a factory precharge of 38 psi. A bottom-mounted 1-1\/4 inch NPT connection simplifies integration into existing supply piping. Licensed plumbers and water systems contractors install this tank in large residential and light commercial well pump systems.\u003c\/p\u003e\n\u003cp\u003eThe zhp302bc is suited for high-drawdown applications where a smaller tank would cause excessive pump cycling. Its 79.3-gallon total volume delivers a substantial drawdown capacity, making it appropriate for multi-fixture residences, light commercial facilities, irrigation systems, and other installations with elevated demand. The stand-mount configuration allows the tank to be positioned vertically on a flat mechanical room floor without additional mounting hardware. The 24-4\/5 inch overall diameter must be accounted for during rough-in planning in confined equipment rooms.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e79.3-gallon tank volume with high drawdown capacity for demanding well pump applications\u003c\/li\u003e\n  \u003cli\u003eButyl diaphragm creates a sealed air-water barrier that resists air migration and waterlogging\u003c\/li\u003e\n  \u003cli\u003e150 psi maximum pressure rating with 38 psi factory precharge\u003c\/li\u003e\n  \u003cli\u003eBottom-mounted 1-1\/4 inch NPT connection for straightforward plumbing tie-in\u003c\/li\u003e\n  \u003cli\u003eCarbon steel shell with powder-coated finish for corrosion resistance\u003c\/li\u003e\n  \u003cli\u003e5-year manufacturer warranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style replacement or new-installation well pressure tank for large residential and light commercial potable water well pump systems requiring a pre-pressurized diaphragm tank with a 1-1\/4 inch NPT bottom connection.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation should be performed by a licensed plumber in accordance with local plumbing codes and IPC guidelines. Shut off the well pump and relieve all system pressure before disconnecting or connecting the tank. Verify the tank precharge pressure matches the system cut-in pressure setting on the pressure switch before placing the system back in service. The tank must be installed in a location that is not subject to freezing, as temperatures below 32 degrees F can damage the diaphragm and shell.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTank Volume\u003c\/strong\u003e: 79.3 gallons\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaximum Operating Pressure\u003c\/strong\u003e: 150 psi\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePrecharge Rating\u003c\/strong\u003e: 38 psi\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaximum Operating Temperature\u003c\/strong\u003e: 210 degrees F\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eConnection Size\u003c\/strong\u003e: 1-1\/4 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eConnection Type\u003c\/strong\u003e: NPT\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Diameter\u003c\/strong\u003e: 24-4\/5 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShell Material\u003c\/strong\u003e: Carbon Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDiaphragm Material\u003c\/strong\u003e: Butyl\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 114 pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eColor\u003c\/strong\u003e: Blue and Gray\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWarranty\u003c\/strong\u003e: 5 Years\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eStandard Information\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: ZILMET\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: zhp302bc\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ZILMET","offers":[{"title":"Default Title","offer_id":51467606917426,"sku":"ZHP302BC","price":1953.58,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/313948479.webp?v=1783907830","url":"https:\/\/voomisupply.com\/products\/zilmet-zhp302bc-well-pressure-tank-79-3-gal-diaphragm","provider":"Voomi Supply","version":"1.0","type":"link"}