{"product_id":"ashcroft-82129-pressure-gauge-2-5in-dial-0-100-psi-npt","title":"Ashcroft 82129 Pressure Gauge 2.5in Dial 0-100 Psi Npt","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe ASHCROFT 82129 is a liquid-filled industrial pressure gauge designed for accurate pressure measurement in demanding trade and industrial applications. It features a 2.5-inch analog dial with a range of 0 to 100 psi and a compound vacuum range down to -30 inches Hg, allowing it to read both pressure and vacuum. The stainless steel case with 304 and 316 grade materials and a 316 stainless steel Bourdon tube make it well-suited for corrosive or wet environments. Accuracy is rated at 1 percent of scale. The liquid fill dampens pointer vibration and reduces wear on internal components, extending service life in pulsating systems. Licensed HVAC technicians, plumbers, and industrial service pros regularly use this gauge for system commissioning, diagnostics, and pressure testing.\u003c\/p\u003e\u003cp\u003eThe 82129 is appropriate for residential and commercial installations where reliable pressure indication is needed. Its center back mount configuration suits panel-mounted or pipe-mounted installations where the gauge face must be visible straight-on. The 1\/4-inch NPT connection is a common thread size across water, gas, refrigerant, and compressed-air systems, making this gauge a versatile fit in HVAC, plumbing, and general industrial piping setups. The polycarbonate lens resists impact and condensation in field conditions.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e2.5-inch analog dial with 0 to 100 psi pressure range and -30 inches Hg vacuum range\u003c\/li\u003e\n\u003cli\u003eLiquid-filled case dampens vibration and protects internal Bourdon tube from pulsation damage\u003c\/li\u003e\n\u003cli\u003e316 stainless steel Bourdon tube resists corrosion in wet or chemically aggressive media\u003c\/li\u003e\n\u003cli\u003eStainless steel case in 304 and 316 grade construction for durability in harsh environments\u003c\/li\u003e\n\u003cli\u003e1 percent of scale accuracy for reliable diagnostic and commissioning readings\u003c\/li\u003e\n\u003cli\u003ePolycarbonate lens provides impact resistance and clear readability\u003c\/li\u003e\n\u003cli\u003eMeets CRN, IP54, IP65\/NEMA 4, PED, and RoHS standards\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style and field replacement industrial pressure gauge for systems using a 1\/4-inch NPT center back mount connection, including HVAC, plumbing, compressed air, and general industrial piping applications. This gauge is part of the ASHCROFT 1009 Series.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation should be performed by a licensed technician or qualified trade professional. Shut off and depressurize the system fully before removing an existing gauge or installing this unit. Apply appropriate thread sealant to the NPT connection per local code requirements, and do not overtighten, as this can damage the gauge socket. For gas systems, verify compatibility with the gas type and pressure range before placing in service.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDial Diameter\u003c\/strong\u003e: 2.5 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePressure Range\u003c\/strong\u003e: 0 to 100 psi\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVacuum Range\u003c\/strong\u003e: -30 inches Hg\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccuracy\u003c\/strong\u003e: 1 percent of scale\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDial Type\u003c\/strong\u003e: Analog\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Type\u003c\/strong\u003e: NPT\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 1\/4 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMount Type\u003c\/strong\u003e: Center Back\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBourdon Tube Material\u003c\/strong\u003e: 316 Stainless Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCase Material\u003c\/strong\u003e: Stainless Steel (304 and 316 grade)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLens Material\u003c\/strong\u003e: Polycarbonate\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLiquid Filled\u003c\/strong\u003e: Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandards\u003c\/strong\u003e: CRN, IP54, IP65\/NEMA 4, PED, RoHS\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: 1009\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 1.5 pounds\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\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: 82129\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ASHCROFT","offers":[{"title":"Default Title","offer_id":51540311343410,"sku":"82129","price":231.64,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/354cb3162489ff68ea41d248e4d39263_28aa5660-b8f1-40d1-ac25-b9faddd9bed1.jpg?v=1785851863","url":"https:\/\/voomisupply.com\/products\/ashcroft-82129-pressure-gauge-2-5in-dial-0-100-psi-npt","provider":"Voomi Supply","version":"1.0","type":"link"}