{"product_id":"pic-gauges-pro-302l-4-inch-all-stainless-liquid-filled-gauge-center-back-mount","title":"PIC Gauges PRO-302L 4\" All Stainless Liquid Filled Pressure Gauge, 1\/4\" NPT Center Back Mount","description":"\u003cp\u003eThe PRO-302L is PIC's all stainless 300 Series gauge: a stainless steel case and bezel over \u003cstrong\u003e316 stainless steel wetted parts\u003c\/strong\u003e, joined by a welded case-to-stem connection. Standard liquid filled gauges pair a stainless case with a brass socket and a phosphor bronze Bourdon tube, so the pressure path is still brass. On this gauge it is not. That makes it the right choice for water treatment, chemical feed, washdown and coastal installations where brass corrodes or is not permitted.\u003c\/p\u003e\n\u003cp\u003eThe glycerine fill damps pulsation and vibration and keeps the movement lubricated, so the pointer stays steady and readable on pumps, compressors and skid piping instead of chattering itself to death.\u003c\/p\u003e\n\u003ch3\u003eKey specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDial size:\u003c\/strong\u003e 4\" (100 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConnection:\u003c\/strong\u003e 1\/4\" male NPT, center back mount\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCase and bezel:\u003c\/strong\u003e Stainless steel, welded case-to-stem connection\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWetted parts:\u003c\/strong\u003e 316 stainless steel socket and Bourdon tube\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFill:\u003c\/strong\u003e Glycerine (liquid filled)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLens:\u003c\/strong\u003e Polycarbonate\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDial:\u003c\/strong\u003e White, dual scale PSI and bar\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccuracy:\u003c\/strong\u003e ±2-1-2% of span, ASME B40.100 Grade A\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperating temperature:\u003c\/strong\u003e 30°F to 160°F\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRange:\u003c\/strong\u003e 0 to 100 PSI\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eAll stainless or stainless case?\u003c\/h3\u003e\n\u003cp\u003eIf you only need the case to survive the environment, a 200 Series gauge with a stainless case and brass internals is the economical pick. Choose the all stainless 300 Series when the \u003cem\u003emedia\u003c\/em\u003e is the problem: treated or potable water, chlorine and chemical dosing, salt air, caustic washdown, or any spec that calls out 316 stainless wetted parts.\u003c\/p\u003e\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cp\u003eMunicipal and industrial water treatment, chemical injection and metering skids, pumps and filtration, reverse osmosis, food and beverage, marine and coastal equipment, and compressed air or hydraulic service where brass internals are not acceptable.\u003c\/p\u003e\n\u003cp\u003eShips ready to install with a 1\/4\" NPT center back connection and a dual PSI\/bar dial for fast, accurate reads.\u003c\/p\u003e","brand":"PIC Gauges","offers":[{"title":"Pressure: 0–100 PSI","offer_id":67669586379027,"sku":"PRO-302L-404E-1","price":164.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0825\/3141\/8387\/files\/Grainger_PROxx302Lxx254Sxx01xx049a40.jpg?v=1792079970","url":"https:\/\/aircompressorstore.com\/products\/pic-gauges-pro-302l-4-inch-all-stainless-liquid-filled-gauge-center-back-mount","provider":"Warthog Air Compressor Store","version":"1.0","type":"link"}