KPGL04-M5: Quick Connect, Reliable Seal! Micro Straight-Through Push-In Fittings Empower Precision Pneumatic Systems

In micro-pneumatic systems such as medical equipment, analytical instruments, and small automation devices where space and connection reliability are paramount, pipeline fittings must be extremely compact, quick to connect, and reliably sealed. The KPGL04-M5 is a micro straight-through push-in fitting, serving as an ideal solution for precise and miniature pipeline connections with its ultra-small size, one-touch quick connection/disconnection, and dependable sealing performance.Core Product Advantages

• Ultra-Miniaturized Design Features an interface thread of only M5x0.8, with an extremely compact structure and minimal weight. It is a true “millimeter-scale” fitting, perfect for integration into micro-devices with highly restricted space.
• One-Touch Quick Connection/Disconnection Utilizes a push-pull locking mechanism. Inserting the micro tubing (e.g., Φ4mm) automatically locks it in place; pressing the lock sleeve allows for easy removal. Operation is exceptionally simple and fast, greatly enhancing the efficiency of tubing layout and maintenance in micro-devices.
• High-Reliability Sealing Employs precision-machined ferrules and micro O-rings, ensuring excellent airtightness even under tiny bore sizes, pressure fluctuations, and slight vibrations to prevent leaks.
• Low Flow Resistance Design Internal flow channels are smooth, offering minimal resistance to micro-flow air, ensuring stable operation of precision components like sensors and micro-valves.
• Superior Materials, Corrosion Resistant The main body is typically made of brass or stainless steel with a fine surface finish for corrosion resistance. Seals are made of high-quality rubber, compatible with various gas media.

Typical Application Scenarios

• Medical and Laboratory Equipment:​ Connecting micro pneumatic circuits in biochemical analyzers, ventilators, and sampling devices.
• Precision Instruments and Meters:​ Providing reliable micro pneumatic connections for pressure sensors, flow meters, gas chromatographs, etc.
• Small Automation Units:​ Connecting micro solenoid valves, micro cylinders, pneumatic muscles, and other actuators.
• Semiconductor Equipment:​ Used in cleanroom environments for connecting micro-flow pipelines of special gases.

Technical Specifications (Typical Values)

• Interface Thread: M5x0.8
• Applicable Tubing Outer Diameter: Φ4mm polyurethane (PU) or nylon soft tubing
• Working Pressure: 0.1 ~ 1.0 MPa
• Operating Temperature: -5℃ ~ +60℃
• Seal Material: NBR (Nitrile Rubber)

ConclusionThe KPGL04-M5 micro push-in fitting is the “reliable link” for precise micro pneumatic connections. Within a minimal footprint, it delivers uncompromising connection convenience and sealing reliability, providing an efficient and dependable pipeline connection solution for all types of miniaturized, highly integrated precision equipment. It is a key fundamental component in building high-end micro-pneumatic systems.Choosing the KPGL04-M5 means choosing an ultra-compact, reliable, and highly efficient micro pneumatic connection solution!