Products Description
Need reliable, leak-proof connections for your compressed air system or pneumatic equipment? Guanjiang's Pneumatic Connectors are precision-engineered components designed to create secure connections in compressed air systems. Available in push-to-connect, threaded, quick-disconnect, and barbed types, they facilitate rapid, reliable joining of air lines and pneumatic devices. Manufactured from brass, stainless steel, or engineering plastics with precision-machined sealing surfaces, these connectors ensure optimal airflow and pressure maintenance — serving as critical interface points in automated systems, manufacturing equipment, and industrial machinery.
Key Advantages
Leak-Proof Connection
Precision-engineered sealing mechanisms prevent air leakage. Secure locking systems maintain connection under vibration and pressure cycling.
Quick & Tool-Free
Quick-connect designs enable rapid installation and disconnection. Tool-free operation reduces maintenance downtime.
Multiple Material Options
Brass (nickel-plated) / SS304 / SS316L / POM plastic — select based on environment, pressure, and chemical exposure.
Multiple Types & Sizes
Push-to-connect / Threaded / Quick-disconnect / Barbed types. 1/8" to 2" NPT threads. Compatible with various tubing materials.
Pressure Rating
0-150 PSI (standard) / Up to 500 PSI (high-pressure versions) — suitable for diverse system requirements.
Safety Locking
Locking mechanisms prevent accidental disconnection. Visual indicators for secure connection status.
Temperature Range
-20°C ~ 80°C (standard) / High-temp versions available for specialized applications.
Material Selection Guide
Brass (Nickel-Plated)
Most economical. Good corrosion resistance for general compressed air. Not for aggressive chemicals or high humidity.
Stainless Steel (304/316L)
Maximum corrosion resistance. Food-grade, pharmaceutical, marine, and high-humidity environments. Higher cost.
Engineering Plastic (POM)
Lightweight, non-marring, chemically resistant to many solvents. Lower pressure rating. Ideal for food contact and cleanrooms.
Aluminum
Lightweight, good strength-to-weight ratio. Anodized finish for corrosion protection. Common in automation.
Connector Types & Applications
Push-to-Connect (PTC)
Instant connection — simply insert tubing, no tools required. Ideal for frequent disconnection and rapid assembly.
Threaded (NPT/BSPT)
Tapered threads for permanent connections. Use with PTFE tape or sealant. Highest pressure rating.
Quick-Disconnect
Single-action coupling/uncoupling with automatic shut-off. For portable equipment and tool changes.
Barbed
Cost-effective for flexible hose — secure with hose clamp. Suitable for lower pressure vacuum applications.
Technical Specifications
| Parameter | Specification |
|---|---|
| Thread Sizes | 1/8" / 1/4" / 3/8" / 1/2" / 3/4" / 1" / 1.5" / 2" NPT / BSPT / BSPP |
| Connection Types | Push-to-connect / Threaded / Quick-disconnect / Barbed / Compression |
| Material Options | Brass (nickel-plated) / SS304 / SS316L / Aluminum / POM (plastic) |
| Pressure Rating | 0-150 PSI (standard) / Up to 500 PSI (high-pressure) |
| Temperature Range | -20°C ~ 80°C (standard) / Up to 200°C (high-temp) |
| Tubing Compatibility | PU / Nylon / PE / PTFE / Rubber hose (OD: 4mm ~ 16mm) |
| Seal Material | Nitrile (NBR) / Silicone / Viton (FKM) / PTFE |
Applications
| Industry | Typical Applications |
|---|---|
| Industrial Automation | Robotic systems, assembly line equipment, pneumatic actuators |
| Manufacturing | Machine tools, processing equipment, air-powered tools |
| Transportation | Brake systems, air suspension, pneumatic door controls |
| Packaging Machinery | Air cylinder connections, control systems, vacuum grippers |
| Medical Equipment | Pneumatic control systems, diagnostic devices, hospital air systems |
Frequently Asked Questions
Q1: How do I select the right connector material for my application?
A: Consider environment, pressure, and chemical exposure. Brass is economical for general compressed air. Stainless steel is required for food/pharma, marine, and corrosive environments. Plastic (POM) is lightweight, non-marring, and chemically resistant — ideal for cleanrooms and food contact. See our material selection guide above.
Q2: What is the difference between NPT, BSPT, and BSPP threads?
A: NPT (National Pipe Taper) — tapered thread, seals by thread deformation. Common in North America. BSPT (British Standard Pipe Taper) — tapered thread, similar to NPT but different pitch angle. BSPP (British Standard Pipe Parallel) — parallel thread, requires O-ring or gasket for sealing. Always match thread standards between connector and port.
Q3: Can these connectors be used with vacuum applications?
A: Yes. All our connectors are suitable for vacuum applications up to -0.1 MPa. The precision sealing mechanisms maintain integrity under negative pressure. For high-vacuum applications, specify PTFE seals for best performance.
Q4: How do I prevent air leaks at threaded connections?
A: For tapered threads (NPT/BSPT), apply PTFE tape (2-3 wraps in thread direction) or liquid thread sealant. Do not use PTFE tape on parallel threads (BSPP) — use the supplied O-ring or gasket instead. Tighten to recommended torque — over-tightening can damage threads or seals.
Q5: Are food-grade or medical-grade connectors available?
A: Yes. We offer stainless steel (SS304/316L) connectors with silicone or PTFE seals that meet FDA and USP Class VI requirements for food and medical applications. Please specify your regulatory requirements when ordering.
Need reliable pneumatic connectors for your compressed air system?
Request a Quote → Download Datasheet (PDF)* Please provide your connection type, thread size (NPT/BSPT/BSPP), tubing OD, material preference, and pressure requirement for a fast, accurate quotation.
