Series QR2-C stainless steel

Aventics Serie QR2-C stainless steel pneumatic push-in fittings are precision-engineered connection components designed for pneumatic systems requiring superior corrosion resistance and reliability. These fittings combine threaded connections with push-in technology, enabling secure tube connections in pharmaceutical manufacturing, food processing, chemical plants, and marine applications where standard brass or steel fittings would corrode. The stainless steel construction provides exceptional durability in harsh environments while maintaining precise pneumatic sealing performance. Industries utilizing clean room environments, sterile processing, and aggressive media handling rely on these fittings for long-term system integrity and minimal contamination risk.

Selection of Aventics QR2-C stainless steel fittings requires evaluation of tube diameter compatibility, thread specifications, and connection geometry based on your pneumatic system requirements. Available configurations include straight connectors like QR2-C-RTK-DA12-DA12 for 12mm tube diameters, elbow fittings such as QR2-C-RVT-R038-DA12 combining R3/8 threads with 12mm push-in connections, and tee configurations like QR2-C-RTT-R038-DA10 for branching applications. Operating pressure ratings typically reach 16 bar for standard configurations, with tube sizes ranging from 6mm to 16mm depending on the specific model. Temperature resistance spans from -20°C to +150°C, making these fittings suitable for both ambient and elevated temperature pneumatic applications.

Aventics QR2-C stainless steel pneumatic fittings comply with ISO 14743 standards for pneumatic fluid power push-in fittings, ensuring consistent performance and interchangeability across global pneumatic systems. The stainless steel materials meet DIN EN 10088 specifications for corrosion-resistant steel grades, typically utilizing 316L stainless steel for optimal chemical resistance. Thread connections conform to ISO 228 for parallel threads and ISO 7 for tapered threads, guaranteeing proper sealing with standard pneumatic components. Manufacturing processes adhere to ISO 9001 quality management standards, while the push-in mechanism design meets ISO 14743 requirements for insertion force, retention strength, and leak tightness performance criteria.

Aventics QR2-C series offers distinct configurations optimized for specific pneumatic routing requirements, with RTK designating straight through connectors like QR2-C-RTK-DA12-DA12 for direct tube-to-tube connections. RVT variants such as QR2-C-RVT-R038-DA12 feature 90-degree elbow geometry combining threaded ports with push-in connections for space-constrained installations requiring directional changes. RTT configurations like QR2-C-RTT-R014-DA10 provide tee junction functionality for branching pneumatic lines, enabling multiple connection points from a single fitting. RSM variants offer male threaded connections, while RSG configurations provide dual threaded ports for component interconnection without push-in tube connections.

Installation of Aventics QR2-C stainless steel fittings requires pneumatic tubing with outer diameters matching the fitting specifications, typically ranging from 6mm to 16mm depending on the model selected. The push-in mechanism accommodates polyurethane, polyamide, and PTFE tubing materials with proper tube cutting tools ensuring square, burr-free cuts for optimal sealing performance. Thread connections require appropriate sealant application following DIN 2353 guidelines, with installation torque specifications typically ranging from 25-35 Nm depending on thread size. System pressure testing should verify leak-tight performance at 1.5 times operating pressure, while tube insertion depth must meet manufacturer specifications for proper retention force engagement.

Aventics QR2-C stainless steel pneumatic fittings operate safely within pressure ranges up to 16 bar for standard configurations, with temperature limits spanning -20°C to +150°C for continuous operation. The 316L stainless steel construction provides excellent corrosion resistance against most pneumatic media including compressed air, inert gases, and water-based fluids. IP rating classifications vary by installation configuration, but properly assembled connections typically achieve IP65 protection when used with appropriate cable glands and housing components. The fittings maintain structural integrity under vibration conditions meeting DIN EN 60068-2-6 test specifications, while the push-in mechanism retains tube connections with pull-out forces exceeding 300N for 12mm diameter applications.

Aventics QR2-C stainless steel pneumatic fittings require minimal scheduled maintenance under normal operating conditions, with recommended inspection intervals of 12-24 months depending on application severity and environmental exposure. Visual inspection should verify absence of external corrosion, proper tube retention, and leak-free operation at system operating pressure. Service life typically exceeds 10 years in standard pneumatic applications, with the stainless steel construction providing superior longevity compared to brass alternatives in corrosive environments. O-ring seals may require replacement every 5-7 years depending on operating temperature and pressure cycling frequency, while the metal components maintain dimensional stability throughout the fitting's operational lifetime when properly installed and operated within specification limits.