{"product_id":"smc-pneumatics-kcu04-00-union-y-tube-fitting-4mm","title":"Smc Pneumatics KCU04-00 Union Y Tube Fitting 4mm","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe SMC PNEUMATICS KCU04-00 is a push-to-connect union Y tube fitting designed for pneumatic tubing systems requiring a three-way branch connection. Constructed from polybutylene, this fitting accepts tubing with a 4 mm outside diameter and is rated for use up to 145 psi. Installation requires no tools  -  tubing inserts and locks in place with a simple push, enabling fast assembly and modification of pneumatic circuits. Pneumatic technicians and maintenance professionals install this fitting when routing compressed air lines through equipment or machinery.\u003c\/p\u003e\n\u003cp\u003eThis fitting is suited for light-duty pneumatic circuit work in industrial and automation environments where compact, low-profile connections are needed. The Y configuration allows a single supply line to branch into two outputs, making it useful in manifold arrangements, instrument air lines, and small-bore pneumatic control systems. Its polybutylene construction makes it appropriate for dry compressed air and general-purpose pneumatic media.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003ePush-to-connect design allows tool-free tube insertion and removal\u003c\/li\u003e\n  \u003cli\u003eUnion Y configuration splits one inlet into two outlet ports\u003c\/li\u003e\n  \u003cli\u003eRated to 145 psi for standard pneumatic circuit pressures\u003c\/li\u003e\n  \u003cli\u003ePolybutylene construction offers good chemical compatibility for pneumatic air service\u003c\/li\u003e\n  \u003cli\u003eCompact form factor suits tight routing in automation and equipment panels\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style push-to-connect fitting for pneumatic tubing systems using 4 mm outside diameter tubing.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eDepressurize and lock out the pneumatic circuit before installing or removing any fittings. Ensure tubing is cut cleanly and squarely with no burrs before insertion to achieve a proper seal. Verify tubing outside diameter matches the fitting specification prior to assembly. This type of fitting is typically installed by pneumatic system technicians following applicable equipment manufacturer guidelines.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTube Outside Diameter\u003c\/strong\u003e: 4 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaximum Pressure\u003c\/strong\u003e: 145 psi\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Polybutylene\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.01 pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 27121707\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: SMC PNEUMATICS\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: KCU04-00\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SMC","offers":[{"title":"Default Title","offer_id":51971201696050,"sku":"KCU04-00","price":22.43,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/1780bbd82ea40d509903d0b06855f7dd.jpg?v=1789954583","url":"https:\/\/voomisupply.com\/products\/smc-pneumatics-kcu04-00-union-y-tube-fitting-4mm","provider":"Voomi Supply","version":"1.0","type":"link"}