{"product_id":"mueller-industries-w01009-coupling","title":"Mueller Industries W01009 Coupling","description":"\u003cp\u003eThe \u003cstrong\u003eMueller Industries W01009 Streamline Coupling\u003c\/strong\u003e is a professional-grade \u003cstrong\u003ewrot copper fitting\u003c\/strong\u003e engineered for high-pressure HVACR and mechanical systems. This \u003cstrong\u003e3\/8\" OD (1\/4\" ID) sweat roll-stop coupling\u003c\/strong\u003e is specifically manufactured to meet \u003cstrong\u003eASME B16.22\u003c\/strong\u003e and \u003cstrong\u003eMSS SP104\u003c\/strong\u003e standards, ensuring tight tolerances for leak-resistant solder joints. With a robust \u003cstrong\u003e700 PSI pressure rating\u003c\/strong\u003e and a thermal capacity of up to 250°F, this \u003cstrong\u003eWC-400 style coupling\u003c\/strong\u003e is built to handle the rigors of refrigeration lines, hydronic heating, and potable water systems. The integrated \u003cstrong\u003erolled stop\u003c\/strong\u003e provides a positive tube stop, facilitating accurate pipe insertion depth for uniform flow and structural integrity. As a veteran contractor's choice for \u003cstrong\u003ecopper pressure fittings\u003c\/strong\u003e, the W01009 delivers the material purity and wall thickness necessary for long-term reliability in specialized \u003cstrong\u003eHVAC piping\u003c\/strong\u003e and pressurized supply applications.\u003c\/p\u003e\n\n\u003ch3\u003eKey Benefits for the Contractor\u003c\/h3\u003e\n\u003cul\u003e\n    \u003cli\u003e\n\u003cstrong\u003ePrecision-Engineered Wrot Copper:\u003c\/strong\u003e High-grade material provides superior strength and corrosion resistance compared to generic alternatives.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eInternal Roll-Stop Design:\u003c\/strong\u003e Ensures consistent 1\/4\" nominal pipe alignment and prevents over-insertion during the brazing or soldering process.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eSuperior Pressure Handling:\u003c\/strong\u003e Rated for \u003cstrong\u003e700 PSI\u003c\/strong\u003e, making it suitable for modern high-pressure refrigerants and demanding mechanical systems.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eIndustry Compliance:\u003c\/strong\u003e Fully conforms to \u003cstrong\u003eASME B16.22\u003c\/strong\u003e and \u003cstrong\u003eUL verification\u003c\/strong\u003e for safety and performance in commercial and industrial environments.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eReliable Sweat Connections:\u003c\/strong\u003e Clean, smooth interior surfaces promote optimal capillary action for 100% airtight solder bonds.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eCommon Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eIs this coupling suitable for refrigeration linesets?\u003c\/strong\u003e\u003cbr\u003e\nYes, the \u003cstrong\u003eMueller W01009\u003c\/strong\u003e is a \u003cstrong\u003ewrot copper coupling\u003c\/strong\u003e designed to handle the pressures found in refrigeration and HVAC systems, provided the operating pressure does not exceed its 700 PSI rating.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat is the difference between 3\/8\" OD and 1\/4\" ID in this fitting?\u003c\/strong\u003e\u003cbr\u003e\nIn the HVACR industry, tubing is typically measured by \u003cstrong\u003eOuter Diameter (OD)\u003c\/strong\u003e, which is 3\/8\" for this part. In plumbing, the \u003cstrong\u003eNominal ID\u003c\/strong\u003e is 1\/4\". They refer to the same physical size for this \u003cstrong\u003esweat connection\u003c\/strong\u003e.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eCan I use this for hydronic heating applications?\u003c\/strong\u003e\u003cbr\u003e\nAbsolutely. Its 250°F temperature rating and precise \u003cstrong\u003eWC-400 style\u003c\/strong\u003e configuration make it ideal for hydronic loops and pressurized water supply.\u003c\/p\u003e\n\n\u003cp\u003eDisclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.\u003c\/p\u003e","brand":"Mueller Industries","offers":[{"title":"Default Title","offer_id":35643262412,"sku":"W01009","price":2.02,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1838\/2375\/files\/Pic_a0a06132-bba7-4cc0-a9f4-818c0b0825a9.png?v=1772488068","url":"https:\/\/www.gsistore.com\/products\/mueller-industries-w01009-coupling","provider":"GSIstore","version":"1.0","type":"link"}