{"product_id":"value-collection-116al25v30-compound-pressure-gauge-30-psi","title":"Value Collection 116AL25V30 Compound Pressure Gauge 30 Psi","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe VALUE COLLECTION 116AL25V30 is a liquid-filled compound pressure gauge designed for measuring both positive pressure and vacuum in a single instrument. The gauge reads from -30 inches Hg vacuum to 0 to 30 psi, making it suitable for systems that cycle through both negative and positive pressure conditions. The 2.5-inch analog dial provides a clear, easy-to-read display, while the glycerine fill dampens needle vibration and protects internal components in pulsating service. The stainless steel case and fully stainless steel wetted parts deliver corrosion resistance in wet or chemically active environments. Licensed HVAC technicians, plumbers, and industrial service techs are the typical installers.\u003c\/p\u003e\u003cp\u003eThis compound gauge fits applications where both vacuum and positive pressure monitoring are required. Typical uses include refrigeration and HVAC system diagnostics, boiler and hydronic loop service, pump inlet monitoring, and plumbing pressure testing. The lower-mount NPT connection allows direct inline installation on pipes, manifolds, or test ports oriented vertically. The liquid-fill construction makes it well suited for vibrating equipment such as pumps and compressors where a dry gauge would lose accuracy quickly.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eCompound range: -30 inches Hg to 0 to 30 psi on a single dial\u003c\/li\u003e\n\u003cli\u003eGlycerine liquid fill dampens vibration and protects the Bourdon tube during pulsating service\u003c\/li\u003e\n\u003cli\u003eStainless steel case and stainless steel wetted parts for corrosion resistance\u003c\/li\u003e\n\u003cli\u003ePlus or minus 3-2-3 percent of scale accuracy across the full range\u003c\/li\u003e\n\u003cli\u003e2.5-inch analog dial with lower 1\/4-inch NPT threaded connection for direct pipe mounting\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a standard replacement or add-on compound pressure gauge for any system using a 1\/4-inch NPT lower-mount gauge port requiring a 0 to 30 psi range with vacuum capability.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation should be performed by a licensed plumber, HVAC technician, or qualified service professional familiar with pressurized systems. Depressurize and isolate the system completely before removing an existing gauge or installing this unit. Apply thread sealant appropriate for the service fluid to the NPT threads, and tighten using a wrench on the hex fitting only — do not apply torque through the gauge case or dial. Verify the pressure range of the system does not exceed the gauge maximum before returning the system to service.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePressure Range\u003c\/strong\u003e: -30 inches Hg to 0 to 30 psi\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccuracy\u003c\/strong\u003e: plus or minus 3-2-3 percent of scale\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDial Diameter\u003c\/strong\u003e: 2.5 inches (63.55 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDial Type\u003c\/strong\u003e: Analog\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMount Type\u003c\/strong\u003e: Lower\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 1\/4 inches NPT\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLiquid Filled\u003c\/strong\u003e: Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLiquid Fill Type\u003c\/strong\u003e: Glycerine and Water\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBourdon Tube Material\u003c\/strong\u003e: Stainless Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWetted Parts Material\u003c\/strong\u003e: Stainless Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCase Material\u003c\/strong\u003e: Stainless Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeight\u003c\/strong\u003e: 4 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWidth\u003c\/strong\u003e: 3 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength\u003c\/strong\u003e: 1 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.3 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: VALUE COLLECTION\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 116AL25V30\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VALUE COLLECTION","offers":[{"title":"Default Title","offer_id":51698041848114,"sku":"116AL25V30","price":50.65,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/55279b19c038ddf23a7d28363e2bdf33.jpg?v=1788357061","url":"https:\/\/voomisupply.com\/products\/value-collection-116al25v30-compound-pressure-gauge-30-psi","provider":"Voomi Supply","version":"1.0","type":"link"}