{"product_id":"norgren-4ld-052-d00-inline-barb-check-valve","title":"Norgren 4LD-052-D00 Inline Barb Check Valve","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe NORGREN 4LD-052-D00 is an inline check valve with barb connections, designed to allow one-directional fluid or gas flow while preventing backflow in pneumatic and fluid-handling systems. The valve body is constructed from polypropylene, offering resistance to a wide range of chemicals and moisture. It opens at a crack pressure of 3.00 psi, making it suitable for low-pressure applications. The barb connection style is compatible with flexible tubing and allows for tool-free installation in many configurations. Licensed plumbers, HVAC technicians, and industrial service professionals are the typical installers of this component.\u003c\/p\u003e\u003cp\u003eThis check valve is intended for use in inline pneumatic lines, fluid transfer systems, and light-duty plumbing circuits where backflow prevention is required at low operating pressures. The barb fitting style suits flexible tubing with a 1\/16-inch inside diameter. It is commonly installed in residential and light commercial systems where polypropylene body materials are appropriate for the media being handled. The compact form factor fits into tight inline runs without requiring fittings or threaded connections.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eInline check valve design prevents backflow in low-pressure pneumatic and fluid systems\u003c\/li\u003e\n\u003cli\u003eCrack pressure of 3.00 psi allows flow at minimal system pressure\u003c\/li\u003e\n\u003cli\u003ePolypropylene body construction provides chemical and corrosion resistance\u003c\/li\u003e\n\u003cli\u003eBarb connection style compatible with flexible tubing for straightforward installation\u003c\/li\u003e\n\u003cli\u003eDesigned for tubing with 1\/16-inch inside diameter\u003c\/li\u003e\n\u003cli\u003eLightweight at 0.5 pounds, suitable for space-constrained installations\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style inline replacement check valve for low-pressure pneumatic and fluid-handling systems using barb-connected flexible tubing with a 1\/16-inch inside diameter.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation should be performed by a qualified HVAC technician, plumber, or industrial service professional familiar with the system media and pressure requirements. Shut off and depressurize the system fully before removing the existing check valve or installing a new one. Ensure the valve is oriented in the correct flow direction as indicated by any arrow or marking on the body. Barb connections should be secured with appropriate clamps or ties to prevent tubing pullout under system pressure.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eValve Type\u003c\/strong\u003e: Inline Check Valve\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConnection Type\u003c\/strong\u003e: Barb\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBody Material\u003c\/strong\u003e: Polypropylene\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCrack Pressure\u003c\/strong\u003e: 3.00 psi\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMinimum Operating Pressure\u003c\/strong\u003e: 0 psi\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTube Inside Diameter\u003c\/strong\u003e: 1\/16 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTube Outside Diameter\u003c\/strong\u003e: 8.60 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.5 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: NORGREN\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 4LD-052-D00\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"NORGREN","offers":[{"title":"Default Title","offer_id":51722537042226,"sku":"4LD-052-D00","price":56.64,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/24aacc70abcb7d3fbd9ba49d909c36ca.jpg?v=1788592507","url":"https:\/\/voomisupply.com\/products\/norgren-4ld-052-d00-inline-barb-check-valve","provider":"Voomi Supply","version":"1.0","type":"link"}