{"product_id":"smc-pneumatics-kq2r04-08a-plug-in-reducer-fitting-145-psi","title":"Smc Pneumatics KQ2R04-08A Plug-in Reducer Fitting 145 Psi","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe SMC PNEUMATICS KQ2R04-08A is a push-to-connect plug-in reducer tube fitting designed for pneumatic plumbing systems where two different tube sizes must be joined in a single inline connection. Constructed from brass with a polybutylene tube interface, this fitting handles a maximum working pressure of 145 psi and operates across a temperature range of 23 degrees F to 140 degrees F. The push-to-connect design allows for fast, tool-free tube insertion, reducing assembly time in both new installations and field repairs. Licensed pneumatic or industrial plumbing technicians typically install these fittings in compressed-air distribution lines and fluid-transfer systems.\u003c\/p\u003e\u003cp\u003eThis reducer fitting connects a 4mm outside-diameter tube on one end to an 8mm outside-diameter stem on the other, making it suited for applications where a branch or sub-circuit runs smaller tubing than the main supply line. Common installation environments include pneumatic control panels, automated machinery, and compressed-air service drops in light industrial and commercial facilities. The compact overall length of 29.60mm allows use in tight panel layouts where space between components is limited.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003ePush-to-connect design allows tool-free tube insertion and removal\u003c\/li\u003e\n\u003cli\u003eReduces 8mm stem to 4mm tube outside diameter in a single inline fitting\u003c\/li\u003e\n\u003cli\u003eBrass construction provides durability and corrosion resistance in pneumatic service\u003c\/li\u003e\n\u003cli\u003eRated to 145 psi maximum working pressure\u003c\/li\u003e\n\u003cli\u003eOperating temperature range of 23 degrees F to 140 degrees F suits most indoor pneumatic environments\u003c\/li\u003e\n\u003cli\u003eRoHS compliant construction\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style push-to-connect reducer fitting for pneumatic tubing systems using 4mm and 8mm outside-diameter tubing in compressed-air and fluid-transfer applications.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation should be performed by a qualified pneumatic or industrial plumbing technician. Depressurize and isolate the air supply line completely before removing existing fittings or inserting new tubing. Ensure tube ends are cut cleanly and squarely with a proper tube cutter to achieve a reliable seal. Verify the system does not exceed the 145 psi rated working pressure after returning the line to service.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eConnection Type\u003c\/strong\u003e: Push-to-Connect\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Brass, Polybutylene\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTube Outside Diameter\u003c\/strong\u003e: 4mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStem Outside Diameter\u003c\/strong\u003e: 8mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Working Pressure\u003c\/strong\u003e: 145 psi\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 29.60mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMinimum Working Temperature\u003c\/strong\u003e: 23 degrees F\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Working Temperature\u003c\/strong\u003e: 140 degrees F\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.1 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandards\u003c\/strong\u003e: RoHS\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 27121700\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\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: KQ2R04-08A\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SMC","offers":[{"title":"Default Title","offer_id":52033715110194,"sku":"KQ2R04-08A","price":14.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/30f7bd33d5b722eadc5182cf47b22e81_7406770d-05e9-4708-8c7a-c48bf0407ad4.jpg?v=1790021764","url":"https:\/\/voomisupply.com\/products\/smc-pneumatics-kq2r04-08a-plug-in-reducer-fitting-145-psi","provider":"Voomi Supply","version":"1.0","type":"link"}