{"product_id":"ashcroft-91480xll-pressure-gauge-4-5-in-rear-flange","title":"Ashcroft 91480XLL Pressure Gauge 4.5 in Rear Flange","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe ASHCROFT 91480XLL is an analog pressure gauge designed for industrial and mechanical service applications where accurate, at-a-glance pressure readings are required. It features a 4.5-inch dial face with a 0 to 100 psi range and a stated accuracy of 0.5 percent of scale, making it suitable for applications that demand consistent measurement reliability. The aluminum case keeps weight low at 2.5 pounds while the bronze wetted parts provide corrosion resistance in contact with the process media. This gauge mounts via a rear flange configuration and connects through a 0.5-inch threaded port. Licensed technicians and pipefitters in HVAC, plumbing, and industrial process environments are the primary installers.\u003c\/p\u003e\n\u003cp\u003eThis gauge is appropriate for use in residential and light commercial mechanical systems where pressure monitoring of water, air, or compatible fluids is required. The rear flange mount suits panel or bulkhead installations where the gauge face must sit flush against a surface. Its dry, no-fill design means there is no glycerin or silicone liquid inside the case, which simplifies disposal and keeps the unit lightweight. The 0.5-inch thread connection is a common size across a wide range of valves, manifolds, and test ports found in HVAC and plumbing service work.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e4.5-inch analog dial face for easy pressure reading at a distance\u003c\/li\u003e\n  \u003cli\u003e0 to 100 psi pressure range with 0.5 percent of scale accuracy\u003c\/li\u003e\n  \u003cli\u003eAluminum case construction reduces overall weight\u003c\/li\u003e\n  \u003cli\u003eBronze wetted parts resist corrosion from process media contact\u003c\/li\u003e\n  \u003cli\u003eRear flange mount design for panel and bulkhead installations\u003c\/li\u003e\n  \u003cli\u003eDry, no-fill construction — no liquid inside the case\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style replacement or service gauge for residential and commercial mechanical systems requiring a rear flange-mounted analog pressure gauge with a 0.5-inch threaded connection and a 4.5-inch dial face.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation should be performed by a licensed plumber, HVAC technician, or pipefitter in accordance with applicable local codes and IPC or IFGC guidelines. Isolate and depressurize the system fully before removing an existing gauge or making any threaded connections. Use appropriate thread sealant or PTFE tape on the threaded port and tighten to hand-snug plus a firm wrench turn — do not over-torque the aluminum case fittings. After installation, slowly restore system pressure and inspect for leaks before returning the system to service.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePressure Range\u003c\/strong\u003e: 0 to 100 psi\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAccuracy\u003c\/strong\u003e: 0.5 percent of scale\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDial Diameter\u003c\/strong\u003e: 4.5 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDial Type\u003c\/strong\u003e: Analog\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 0.5 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMount Type\u003c\/strong\u003e: Rear Flange\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCase Material\u003c\/strong\u003e: Aluminum\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWetted Parts Material\u003c\/strong\u003e: Bronze\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLiquid Filled\u003c\/strong\u003e: No\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 2.5 pounds\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: ASHCROFT\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 91480XLL\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ASHCROFT","offers":[{"title":"Default Title","offer_id":51541544927538,"sku":"91480XLL","price":534.91,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/95f8bcdc83bc5f5350f7bcbd810e2402_7539fd94-68c0-4346-96b3-ba754c986470.jpg?v=1785878972","url":"https:\/\/voomisupply.com\/products\/ashcroft-91480xll-pressure-gauge-4-5-in-rear-flange","provider":"Voomi Supply","version":"1.0","type":"link"}