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These corrosion-resistant plastic air line fittings feature an integrated one-touch locking structure, ensuring leak-free sealing even in high-frequency pneumatic cycling, while the lightweight plastic body enables flexible installation in compact spaces. They are the essential tubing solution for pneumatic system integrators, food and beverage equipment manufacturers, packaging machinery producers, and industrial bulk purchasers of pneumatic components.
The quick connect pneumatic fitting for automation systems adopts an innovative push-to-connect design: simply insert the pneumatic tubing into the fitting body to complete the installation in 3 seconds, no wrenches or thread sealant required. The built-in stainless steel grab ring firmly locks the tubing, while the high-elasticity NBR seal ring achieves zero leakage under rated working pressure, even in long-term vibration environments.
Engineered for industrial pneumatic systems, these plastic pneumatic tube fittings support a working pressure range of 0 to 1.0MPa, perfectly matching the 0.2-0.7MPa operating pressure of mainstream pneumatic components. The standard model adapts to a temperature range of -20℃ to +70℃, maintaining stable sealing performance in both low-temperature clean rooms and high-temperature workshop environments.
We offer a full range of fitting configurations, including straight, elbow, tee, cross, and bulkhead styles, with tubing outer diameters from 4mm to 16mm and thread specifications from M3 to M12, as well as PT/NPT/G inch threads. They are fully compatible with PU, PA, PE, and PTFE pneumatic tubing, and can be matched with all types of pneumatic cylinders, solenoid valves, and air source treatment units.
Food-grade models use FDA-compliant PA66 plastic body and food-contact safe seal materials, free of harmful substances, with excellent resistance to weak acids, alkalis, and cleaning agents, making them ideal for food and pharmaceutical production environments.
Category | Sub-category | Full Specification Details |
Model Nomenclature | Standard Order Model | PC 12 - 01 (Structure: Basic Model Code PC - Tube Size Code - Thread Specification Code) |
Tube Size Specifications | Metric Tube Size | Tube Size Code: 4 / 6 / 8 / 10 / 12 / 16 Corresponding Outer Diameter: ø4mm / ø6mm / ø8mm / ø10mm / ø12mm / ø16mm |
Inch Tube Size | Tube Size Code: 5/32" / 3/16" / 1/4" / 5/16" / 3/8" / 1/2" Corresponding Outer Diameter: ø3.96mm / ø4.76mm / ø6.35mm / ø7.94mm / ø9.53mm / ø12.7mm | |
Thread Specifications | 55° Taper Thread (R) | Thread Code: 01 / 02 / 03 / 04 / 06 Corresponding Thread: R1/8 / R1/4 / R3/8 / R1/2 / R3/4 |
Metric Straight Thread | Thread Code: M3 / M5 / M6 Corresponding Thread: M3×0.5 / M5×0.8 / M6×1.0 | |
55° Straight Pipe Thread (G) | Thread Code: G01 / G02 / G03 / G04 / G06 Corresponding Thread: G1/8 / G1/4 / G3/8 / G1/2 / G3/4 | |
60° American Thread (UNF & NPT) | Thread Code: N01 / N02 / N03 / N04 / N06 / N08 Corresponding Thread: 10-32UNF / NPT1/8 / NPT1/4 / NPT3/8 / NPT1/2 / NPT3/4 | |
Core Material & Performance | POM Strong Plastic Cap | Press to release the snap spring for tube removal; marked with tube outer diameter for quick identification; high strength and impact resistance |
Fixed Card Sleeve | Sturdy anti-deformation material, no deformation under pressure, effectively prevents tube detachment | |
Stainless Steel Snap Spring | Superior resilience, strong clamping force, supports repeated plugging and unplugging with low fatigue | |
NBR Nitrile Sealing Ring | Excellent wear and heat resistance, long-lasting and reliable sealing performance | |
Plastic Shell | Made of high-hardness PBT plastic pellets, with strong resilience and stable structural performance |
The plastic pneumatic fitting for air tubing consists of 5 core precision components: a high-strength engineering plastic (PA66/POM) body, 304 stainless steel grab ring, high-elasticity NBR seal ring, plastic release collet, and thread O-ring. The main body is injection-molded with high-toughness engineering plastic, featuring excellent impact resistance and dimensional stability. The stainless steel grab ring has sharp, precision-cut teeth to firmly lock the tubing without damaging the tube wall, while the NBR seal ring provides long-lasting, zero-leakage sealing even after thousands of insertion and removal cycles.
These plastic pneumatic fittings are widely used in food and beverage processing lines, pharmaceutical production equipment, automated packaging machinery, electronic assembly lines, textile machinery, laboratory pneumatic systems, and clean room automation equipment. They are the preferred tubing connection solution for low-corrosion, lightweight, and fast-installation pneumatic system requirements.
All our push-to-connect plastic pneumatic fittings comply with ISO pneumatic fluid component standards, with 100% air tightness testing and pressure resistance inspection before delivery. We provide comprehensive OEM/ODM custom support for equipment manufacturers, including custom fitting configurations, special material formulations, color customization, and laser marking services. We offer stable bulk supply, free sample testing, and professional technical guidance for industrial wholesalers and system integrators.
The fittings are fully compatible with all standard flexible pneumatic tubing, including PU (polyurethane), PA (nylon), PE (polyethylene), and PTFE tubing, as long as the tubing outer diameter matches the fitting specification.
The standard design supports more than 5000 insertion and removal cycles without performance degradation, ensuring long-term reusability in equipment maintenance and modification.
Yes, we offer food-grade models made of FDA-compliant PA66 material and food-safe seal rings, which meet the hygienic requirements of food and beverage production and pharmaceutical manufacturing.
Reach out to us today for a free customized quote on our high-quality plastic pneumatic fittings. We can provide free samples, bulk wholesale pricing, and custom product solutions to match your industrial application needs. Our sales and technical team will respond to your inquiry within 24 hours.
