{"product_id":"nibco-h-41403whv-pump-isolation-valve-3-4-inch-fpt","title":"Nibco h-41403whv Pump Isolation Valve 3\/4 Inch Fpt","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe NIBCO h-41403whv is a 3\/4-inch female pipe thread (FPT) pump isolation valve with a rotating flange designed for hydronic and plumbing pump service. This valve allows technicians to isolate a circulator or inline pump from the system without draining the entire loop, simplifying pump removal and replacement. Constructed to lead-free standards, it meets drinking water compliance requirements where applicable. The rotating flange feature speeds alignment during installation and reduces the risk of cross-threading. Licensed plumbers and HVAC hydronic technicians install this valve as part of standard pump serviceability practice.\u003c\/p\u003e\n\u003cp\u003eThis isolation valve is suited for residential and light commercial hydronic heating systems, domestic hot water recirculation loops, and plumbing systems where pump serviceability is a priority. It is installed directly at the pump inlet or outlet connection, providing a shutoff point that keeps the system charged while pump work is performed. The 3\/4-inch FPT connection is a common size for residential circulator pumps.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e3\/4-inch FPT threaded connection for direct pump port attachment\u003c\/li\u003e\n  \u003cli\u003eRotating flange design allows repositioning during bolt-up without relocating the valve body\u003c\/li\u003e\n  \u003cli\u003eLead-free construction meets applicable potable water safety standards\u003c\/li\u003e\n  \u003cli\u003eIsolation flange configuration enables pump removal while system remains charged\u003c\/li\u003e\n  \u003cli\u003eCompact form factor suited for tight mechanical room installations\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style replacement and new-installation isolation flange for 3\/4-inch FPT pump connections in residential and light commercial hydronic and plumbing systems.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed by a licensed plumber or qualified HVAC hydronic technician. Shut off system flow and relieve line pressure before threading the valve onto the pump connection. Apply thread sealant or PTFE tape appropriate for the service fluid and temperature range. Verify all flange bolts are drawn evenly to prevent flange distortion and ensure a leak-free seal before returning the system to service.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eConnection Type\u003c\/strong\u003e: 3\/4 inch FPT (Female Pipe Thread)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlange Style\u003c\/strong\u003e: Rotating flange\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLead Free\u003c\/strong\u003e: Yes\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: NIBCO\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: h-41403whv\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"NIBCO","offers":[{"title":"Default Title","offer_id":51233322467634,"sku":"H-41403WHV","price":79.98,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/307629430.jpg?v=1780097320","url":"https:\/\/voomisupply.com\/products\/nibco-h-41403whv-pump-isolation-valve-3-4-inch-fpt","provider":"Voomi Supply","version":"1.0","type":"link"}