{"product_id":"goodman-b1789888-flow-check-piston-kit-0-088-in-orifice","title":"Goodman b1789888 Flow Check Piston Kit 0.088 in Orifice","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe GOODMAN b1789888 is a flow check piston kit designed to regulate refrigerant flow in split-system heat pump and air conditioning applications. The kit includes a 0.088-inch orifice piston that functions as a fixed metering device, controlling refrigerant flow direction and rate between the indoor and outdoor coils. This type of piston replaces or supplements a check valve and piston assembly in systems that use a piston-style metering device rather than a TXV. Installation is typically performed by licensed HVAC technicians during system conversion, maintenance, or refrigerant circuit servicing.\u003c\/p\u003e\u003cp\u003eThis flow check piston kit is suited for residential and light commercial HVAC systems that use a fixed-orifice metering system. The 0.088-inch orifice size is matched to specific system capacity and refrigerant requirements. It is used in both cooling-only and heat pump configurations where the piston assembly sits in a check valve body to meter refrigerant flow in the appropriate direction depending on operating mode.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e0.088-inch orifice diameter for fixed-rate refrigerant metering\u003c\/li\u003e\n\u003cli\u003eDesigned for use in piston-type check valve metering assemblies\u003c\/li\u003e\n\u003cli\u003eCompact form factor: 0.5 inches height, 15\/32 inches width\u003c\/li\u003e\n\u003cli\u003eLightweight at 0.017 pounds for easy handling during service\u003c\/li\u003e\n\u003cli\u003eManufactured in the United States\u003c\/li\u003e\n\u003cli\u003eOEM-style replacement kit for piston-metered split systems\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement piston kit for residential and light commercial split-system heat pumps and air conditioners that use a fixed-orifice piston metering device.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation should be performed by a licensed HVAC technician following applicable local codes and EPA Section 608 refrigerant handling regulations. Recover all system refrigerant and confirm system pressure is at zero before opening the refrigerant circuit. Verify the orifice size matches the system charging requirements before installing the piston. Reassemble the check valve body to manufacturer specifications and leak-check all connections before recharging the system.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOrifice Diameter\u003c\/strong\u003e: 0.088 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUnit Height\u003c\/strong\u003e: 0.5 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUnit Width\u003c\/strong\u003e: 15\/32 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUnit Weight\u003c\/strong\u003e: 0.017 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCountry of Origin\u003c\/strong\u003e: United States\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Class\u003c\/strong\u003e: Conversion Kits and Orifices\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVendor Part Number\u003c\/strong\u003e: 119F3197\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: GOODMAN\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: b1789888\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"GOODMAN","offers":[{"title":"Default Title","offer_id":51138353463602,"sku":"B1789888","price":26.46,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/305526183.jpg?v=1778254030","url":"https:\/\/voomisupply.com\/products\/goodman-b1789888-flow-check-piston-kit-0-088-in-orifice","provider":"Voomi Supply","version":"1.0","type":"link"}