KQ2E10-03A: Bulkhead Female Threaded One-Touch Fitting – Panel-Mounting Through-Panel Connection Expert

Product Positioning
The KQ2E10-03A is a bulkhead female threaded one-touch fitting from SMC’s KQ2 series, designed specifically for piping connections that need to pass through panels or bulkheads in automated equipment. It serves the dual function of securing the fitting to the panel while connecting metric tubing to a female threaded port. This makes it an ideal connecting element for panel piping in pneumatic systems and for transitioning air circuits inside and outside equipment. It is widely used in control cabinets, automated machinery, and various industrial applications requiring tidy through-panel wiring.

Core Highlights: Through-Panel Design, Compact & Lightweight, Easy Installation

• Bulkhead-Specific Design for Through-Panel Connection & Fixation
  • Specifically designed for panel mounting, allowing tubing to be connected through a panel to an internal threaded port while simultaneously fixing the fitting and routing the tubing.
  • Achieves clean transition of air circuits between inside and outside equipment, effectively protecting tubing from pulling and abrasion, enhancing overall equipment aesthetics and reliability.
• Compact & Lightweight with Improved Operability
  • Compared to the conventional KQ2 series, it features a smaller, lighter design that significantly saves installation space.
  • Optimized tubing insertion and removal: insertion is effortless, and the release sleeve prevents excessive claw bite on the tubing during removal, protecting it from damage.
• High Reliability Connection with Strong Holding Force
  • Utilizes an optimized claw structure that firmly grips the tubing, significantly increasing holding force to ensure reliable connection even under vibration and pressure fluctuations, preventing disconnection.
• One-Touch Push-to-Connect
  • The tubing connection uses a one-touch fitting design; simply push the tubing in to connect. To disconnect, press the release sleeve and pull the tubing out, making installation and maintenance extremely convenient.
  • Compatible with Φ10mm outer diameter tubing, suitable for nylon, soft nylon, polyurethane, FEP, PFA, and more.
• Standard Rc 3/8 Female Thread Interface
  • The connection thread is Rc 3/8″ (PT tapered thread), conforming to common Asian standards, facilitating direct connection with various pneumatic components.
• Wide Operating Pressure Range, Vacuum Compatible
  • Operating pressure range: -100kPa to 1.0 MPa. Suitable not only for positive pressure pneumatic systems but also directly for vacuum circuits.
  • Operating temperature range: -5 to 60°C, adaptable to most general industrial environments.
• Durable Brass + PBT Body Material
  • Main body material: PBT resin + brass; thread part: brass, providing good mechanical strength and corrosion resistance.
  • Seal material: NBR (nitrile rubber), suitable for general industrial media like air and water.

Model Number Breakdown

Specifications Overview

Dimensions
According to SMC technical data, key dimensions for KQ2E10-03A are:

Application Scenarios

• Control Cabinet Through-Panel Connection: Introducing external air source into control cabinet through the panel for tidy wiring.
• Equipment Air Circuit Transition: Air source interface on equipment housing, connecting external tubing to internal pneumatic components.
• Multi-Station Air Distribution: Mounting multiple bulkhead fittings on distribution blocks for centralized air routing and through-panel exit.
• Vacuum System Through-Panel: Routing vacuum system tubing through panels to the working area.
• Replacing Traditional Bulkhead Fittings: As a push-to-connect solution replacing threaded bulkhead fittings that require tools, improving assembly efficiency.

Summary: Ideal Connection Bridge for Panel Piping
The KQ2E10-03A Bulkhead One-Touch Fitting perfectly addresses the core requirement in automated equipment – “needing to cleanly route air circuits through panels” – with its dedicated through-panel connection design. Its combination of Φ10mm push-to-connect interface and Rc 3/8 female thread enables convenient transition between tubing and threaded components. The compact, lightweight structure saves valuable installation space. The wide pressure range from -100kPa to 1.0MPa makes it suitable for both positive pressure pneumatic systems and vacuum circuits. Choosing the KQ2E10-03A means equipping your equipment with an easy-to-install, reliable, and aesthetically pleasing “through-panel connection bridge,” an ideal choice for enhancing the wiring quality and maintenance efficiency of pneumatic systems.