{"id":4141,"date":"2026-01-19T14:30:58","date_gmt":"2026-01-19T06:30:58","guid":{"rendered":"https:\/\/atfits.com\/?post_type=product&p=4141"},"modified":"2026-01-19T14:30:58","modified_gmt":"2026-01-19T06:30:58","slug":"smc-kq2l04-02as-pneumatic-connector-fit-kq2l0402as","status":"publish","type":"product","link":"https:\/\/atfits.com\/es\/producto\/smc-kq2l04-02as-pneumatic-connector-fit-kq2l0402as\/","title":{"rendered":"SMC KQ2L04-02AS Pneumatic Connector fit KQ2L0402AS"},"content":{"rendered":"

SMC KQ2L04-02AS Pneumatic Connector (KQ2L0402AS)<\/h1>\n
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1. Product Overview<\/h2>\n
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The SMC KQ2L04-02AS is a 90\u00b0 elbow one-touch pneumatic connector from the KQ2 series, designed for quick and reliable connection between 4 mm outer diameter air tubing and R1\/4 male threads in industrial pneumatic systems. It features a push-in tube connection and R1\/4 male thread with pre-applied sealant, enabling tool-free assembly and disassembly to minimize downtime during maintenance or reconfiguration. The connector supports a pressure range of -100 kPa to 1 MPa and an operating temperature of -5\u00b0C to 60\u00b0C, making it suitable for automation, packaging, material handling, and general machinery applications. Its compact, lightweight brass body with electroless nickel plating ensures corrosion resistance and durability, while the built-in seal guarantees leak-free performance, meeting the demands of standard industrial environments with low maintenance and long service life.<\/div>\n
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2. Main Functions<\/h2>\n
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Function<\/th>\nDetailed Description<\/th>\n<\/tr>\n<\/thead>\n
Tool-Free Tube Connection<\/td>\nPush-in design allows instant insertion of 4 mm OD tubing; the collet and chuck mechanism secures the tube firmly without tools, speeding up assembly and reducing labor costs.<\/td>\n<\/tr>\n
90\u00b0 Elbow Routing<\/td>\n90-degree angled body redirects airflow perpendicular to the thread axis, optimizing pipeline layout in confined spaces and simplifying installation around machinery or equipment obstacles.<\/td>\n<\/tr>\n
Reliable Threaded Sealing<\/td>\nR1\/4 male thread with pre-applied sealant ensures airtight connection to valves, regulators, or other pneumatic components, eliminating the need for additional tape or sealant.<\/td>\n<\/tr>\n
Quick Disconnection<\/td>\nRelease collar design releases both the chuck and collet simultaneously, requiring minimal force to remove tubing for fast system reconfiguration or component replacement.<\/td>\n<\/tr>\n
Vacuum & Pressure Compatibility<\/td>\nOperates across -100 kPa (full vacuum) to 1 MPa, suitable for both vacuum-based pick-and-place and standard pressure pneumatic applications like suction cup systems or cylinder actuation.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n
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3. Technical Features<\/h2>\n
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  1. One-Touch Locking Mechanism<\/strong>: The push-in collet system provides secure tube retention with consistent clamping force, preventing accidental disconnection even under vibration or pressure fluctuations.<\/li>\n
  2. Corrosion-Resistant Construction<\/strong>: Brass body with electroless nickel plating enhances resistance to industrial contaminants, humidity, and minor chemical exposure, extending service life in harsh environments.<\/li>\n
  3. Integrated Sealing System<\/strong>: Premium nitrile rubber (NBR) seal ensures leak-free operation; the seal automatically adjusts to tube outer diameter variations for reliable performance with standard 4 mm OD tubing (FEP, PFA, nylon, polyurethane).<\/li>\n
  4. Pre-Applied Sealant on Thread<\/strong>: R1\/4 male thread comes with factory-applied sealant, reducing assembly steps and ensuring consistent sealing without user error from improper tape application.<\/li>\n
  5. Wide Fluid & Temperature Compatibility<\/strong>: Suitable for air and water (water use: 0-40\u00b0C, non-freezing); temperature range of -5\u00b0C to 60\u00b0C accommodates most industrial operating conditions.<\/li>\n
  6. High Burst Pressure Rating<\/strong>: 3 MPa proof pressure (at 23\u00b0C) ensures structural integrity and safety under overpressure conditions, preventing catastrophic failure during system testing or unexpected pressure spikes.<\/li>\n
  7. RoHS Compliance<\/strong>: Meets RoHS standards for restricted substances, supporting environmentally friendly manufacturing and equipment design.<\/li>\n<\/ol>\n
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    4. Product Dimensions (Unit: mm)<\/h2>\n
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    Dimension Parameter<\/th>\nValue<\/th>\n<\/tr>\n<\/thead>\n
    Overall Length (Thread to Tube End)<\/td>\n32<\/td>\n<\/tr>\n
    Overall Width<\/td>\n18<\/td>\n<\/tr>\n
    Overall Height<\/td>\n22<\/td>\n<\/tr>\n
    Tube Connection (Push-In)<\/td>\n4 mm OD (FEP, PFA, Nylon, Polyurethane)<\/td>\n<\/tr>\n
    Thread Type<\/td>\nR1\/4 Male (With Pre-Applied Sealant)<\/td>\n<\/tr>\n
    Thread Length<\/td>\n10<\/td>\n<\/tr>\n
    Elbow Angle<\/td>\n90\u00b0<\/td>\n<\/tr>\n
    Release Collar Diameter<\/td>\n15<\/td>\n<\/tr>\n
    Body Diameter (Max)<\/td>\n12<\/td>\n<\/tr>\n
    Mounting Clearance<\/td>\n25 (Minimum Space for Hand Operation)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n
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    5. Weight and Material Specifications<\/h2>\n
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    Component<\/th>\nMaterial<\/th>\nWeight (g)<\/th>\n<\/tr>\n<\/thead>\n
    Body<\/td>\nBrass (Electroless Nickel Plated)<\/td>\n12<\/td>\n<\/tr>\n
    Collet & Chuck<\/td>\nStainless Steel<\/td>\n3<\/td>\n<\/tr>\n
    Release Collar<\/td>\nEngineering Plastic<\/td>\n2<\/td>\n<\/tr>\n
    Seal<\/td>\nNitrile Rubber (NBR)<\/td>\n1<\/td>\n<\/tr>\n
    Thread Sealant<\/td>\nPre-Applied PTFE-Based Compound<\/td>\n0.5<\/td>\n<\/tr>\n
    Total Weight (Assembly)<\/strong><\/td>\n–<\/td>\n18.5<\/strong><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n
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    6. Key Performance Parameters<\/h2>\n
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    Parameter<\/th>\nValue<\/th>\n<\/tr>\n<\/thead>\n
    Operating Pressure Range<\/td>\n-100 kPa to 1 MPa (Full Vacuum to 10 bar)<\/td>\n<\/tr>\n
    Proof Pressure (23\u00b0C)<\/td>\n3 MPa<\/td>\n<\/tr>\n
    Operating Temperature<\/td>\n-5\u00b0C to 60\u00b0C; Water Service: 0\u00b0C to 40\u00b0C (Non-Freezing)<\/td>\n<\/tr>\n
    Fluid Compatibility<\/td>\nAir, Water (Non-Corrosive, Non-Freezing)<\/td>\n<\/tr>\n
    Tube Outer Diameter<\/td>\n4 mm<\/td>\n<\/tr>\n
    Thread Specification<\/td>\nR1\/4 Male<\/td>\n<\/tr>\n
    Connection Torque<\/td>\n8-10 N\u00b7m<\/td>\n<\/tr>\n
    Service Life<\/td>\n\u226550,000 Insertion\/Removal Cycles (Under Rated Conditions)<\/td>\n<\/tr>\n
    Leakage Rate<\/td>\n\u22641 cm\u00b3\/min (At 0.6 MPa)<\/td>\n<\/tr>\n
    Material Compliance<\/td>\nRoHS Compliant<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n