{"id":4150,"date":"2026-01-19T14:36:49","date_gmt":"2026-01-19T06:36:49","guid":{"rendered":"https:\/\/atfits.com\/?post_type=product&p=4150"},"modified":"2026-01-19T14:36:50","modified_gmt":"2026-01-19T06:36:50","slug":"smc-kq2l12-04ns-male-elbow-fittings-kq2l1204ns","status":"publish","type":"product","link":"https:\/\/atfits.com\/es\/producto\/smc-kq2l12-04ns-male-elbow-fittings-kq2l1204ns\/","title":{"rendered":"SMC KQ2L12-04NS Male Elbow Fittings KQ2L1204NS"},"content":{"rendered":"

SMC KQ2L12-04NS Male Elbow Fittings (KQ2L1204NS)<\/h1>\n
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1. Product Overview<\/h2>\n
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The SMC KQ2L12-04NS is a high-performance 90\u00b0 male elbow one-touch pneumatic fitting from the KQ2 series, engineered for secure and tool-free connection between 12 mm outer diameter (OD) pneumatic tubing and R1\/2 male threaded ports in industrial automation systems. Designed for high-flow and high-pressure pneumatic applications, it integrates a robust one-touch locking mechanism and pre-sealed thread to ensure leak-free operation, making it ideal for material handling, automotive assembly lines, packaging machinery, and heavy-duty pneumatic circuits. Its compact elbow design optimizes pipeline routing in confined spaces, while the corrosion-resistant construction ensures long service life in harsh industrial environments with minimal maintenance requirements.<\/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 enables instant insertion of 12 mm OD tubing; the internal collet and chuck mechanism locks the tube securely without additional tools, reducing assembly time and labor costs.<\/td>\n<\/tr>\n
90\u00b0 Pipeline Routing<\/td>\nElbow body redirects airflow at a right angle, eliminating the need for additional adapters and optimizing space utilization in dense automation setups with complex pipeline layouts.<\/td>\n<\/tr>\n
Leak-Proof Threaded Connection<\/td>\nR1\/2 male thread with pre-applied PTFE sealant ensures airtight integration with valves, regulators, manifolds, and cylinder ports, eliminating the risk of leaks caused by improper sealant application.<\/td>\n<\/tr>\n
Quick Disconnection<\/td>\nA simple push on the release collar disengages the collet, allowing fast tubing removal for system maintenance, reconfiguration, or component replacement without damaging the tube or fitting.<\/td>\n<\/tr>\n
High-Flow Air Delivery<\/td>\nLarge internal bore size matches the 12 mm tubing diameter, minimizing pressure drop and maximizing airflow efficiency for high-power pneumatic actuators and heavy-duty applications.<\/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. Robust One-Touch Locking System<\/strong>: The dual collet and chuck structure provides strong clamping force, preventing tubing disconnection even under high vibration or pressure fluctuations common in industrial environments.<\/li>\n
  2. Corrosion-Resistant Construction<\/strong>: Brass body with electroless nickel plating resists rust, humidity, and chemical contaminants, while stainless steel internal components enhance durability and wear resistance.<\/li>\n
  3. Integrated Sealing Solution<\/strong>: Pre-applied PTFE-based sealant on the R1\/2 male thread eliminates the need for Teflon tape, reducing assembly steps and ensuring consistent sealing performance across multiple installations.<\/li>\n
  4. Broad Operating Range<\/strong>: Supports a pressure range of -100 kPa (full vacuum) to 1.5 MPa and a temperature range of -5\u00b0C to 60\u00b0C, compatible with both vacuum and positive pressure pneumatic systems.<\/li>\n
  5. Multi-Tube Compatibility<\/strong>: Works with various 12 mm OD tubing materials, including polyurethane (PU), nylon, and polyethylene (PE), offering flexibility for different application requirements.<\/li>\n
  6. High Safety Rating<\/strong>: Boasts a 4.5 MPa proof pressure (at 23\u00b0C), ensuring structural integrity and preventing catastrophic failure during system pressure testing or unexpected pressure spikes.<\/li>\n
  7. RoHS Compliance<\/strong>: Meets international environmental standards, free of restricted hazardous substances, suitable for eco-friendly manufacturing facilities.<\/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
    Tube Outer Diameter Compatibility<\/td>\n12<\/td>\n<\/tr>\n
    Thread Specification<\/td>\nR1\/2 Male<\/td>\n<\/tr>\n
    Thread Length<\/td>\n15<\/td>\n<\/tr>\n
    Overall Length (Thread End to Tube End)<\/td>\n58<\/td>\n<\/tr>\n
    Overall Width (Max)<\/td>\n32<\/td>\n<\/tr>\n
    Overall Height (Max)<\/td>\n35<\/td>\n<\/tr>\n
    Elbow Angle<\/td>\n90\u00b0<\/td>\n<\/tr>\n
    Release Collar Diameter<\/td>\n28<\/td>\n<\/tr>\n
    Body Diameter (Max)<\/td>\n22<\/td>\n<\/tr>\n
    Minimum Mounting Clearance (for Operation)<\/td>\n40<\/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
    Main Body<\/td>\nBrass (Electroless Nickel Plated)<\/td>\n65<\/td>\n<\/tr>\n
    Collet & Chuck<\/td>\nStainless Steel (SUS304)<\/td>\n12<\/td>\n<\/tr>\n
    Release Collar<\/td>\nReinforced Engineering Plastic<\/td>\n8<\/td>\n<\/tr>\n
    Seal Ring<\/td>\nNitrile Rubber (NBR)<\/td>\n3<\/td>\n<\/tr>\n
    Thread Sealant<\/td>\nPTFE-Based Compound (Pre-Applied)<\/td>\n1<\/td>\n<\/tr>\n
    Total Weight (Assembly)<\/strong><\/td>\n–<\/td>\n89<\/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 1.5 MPa<\/td>\n<\/tr>\n
    Proof Pressure (23\u00b0C)<\/td>\n4.5 MPa<\/td>\n<\/tr>\n
    Operating Temperature Range<\/td>\n-5\u00b0C to 60\u00b0C<\/td>\n<\/tr>\n
    Fluid Compatibility<\/td>\nCompressed Air, Non-Freezing Water<\/td>\n<\/tr>\n
    Connection Torque (R1\/2 Thread)<\/td>\n25\u201330 N\u00b7m<\/td>\n<\/tr>\n
    Service Life<\/td>\n\u226550,000 Insertion\/Removal Cycles<\/td>\n<\/tr>\n
    Leakage Rate<\/td>\n\u22641 cm\u00b3\/min (at 0.6 MPa)<\/td>\n<\/tr>\n
    Compatibility with Tubing Materials<\/td>\nPU, Nylon, PE (12 mm OD)<\/td>\n<\/tr>\n
    Environmental Compliance<\/td>\nRoHS Compliant<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n