1. Product Types and Dimensions

The document details various rotary push-in fittings including union elbows, tees, swivelling elbows, and straight male/female fittings. It provides comprehensive dimensional data such as tube diameters, thread sizes, lengths, and wrench flats for different tube sizes (e.g., 12, 16, 28, 29 mm). This facilitates precise selection and integration into fluid systems.

2. Assembly Instructions

• Cutting Tubing: Tubes must be cut squarely at 90° using a proper tube cutter (e.g., TCUT) to avoid burrs and ovalization.
• Insertion: Tubing should be fully inserted into the fitting until it bottoms out to ensure a secure connection.
• Tube Release: To remove tubing, press the release ring lightly while simultaneously pulling the tube out.

Instructions are provided in multiple languages (Italian, English, French, German) to ensure clarity.

3. Installation Recommendations and Precautions

• After assembly, tubing must not be subjected to tensile or lateral forces to prevent damage or disconnection.
• Maintain the minimum recommended bending radius as specified in the tubing catalogue (page 363).
• Avoid any contact or pressure on the release ring to prevent accidental tube release.
• Apply recommended tightening torques for threaded parts (refer to page 6) to ensure mechanical integrity and sealing.

4. Materials and Compliance

• Body Material: Low-lead brass (EN 12164 CW510L or CW614N/CW617N), nickel-plated, compliant with NSF/ANSI 372 for safe potable water contact.
• Seals: FPM seals compliant with FDA standards.
• Other Components: Acetal resin (POM), stainless steel AISI 301, and NBR seals.

5. Technical Specifications and Application Fields

• Recommended Tubings: Thermoplastic tubes for food and beverage applications; flexible polyurethane tubes for pneumatic circuits. Rigid tubes are not recommended for pneumatic use.
• Tolerances: Tube diameter tolerance of ±0.07 mm for diameters up to 8 mm.
• Operating Conditions: Temperature ranges from -20°C to 150°C for food-grade fittings and -20°C to 80°C for pneumatic fittings; maximum pressure up to 20 bar.
• Movement: Designed for rotating and oscillating applications; lateral loads on tubing must be avoided to prevent bearing overload and premature failure.

6. Mechanical Features

• Ball Bearings: Steel 100Cr6 ball bearings support rotation within fittings.
• Rotation Speed: Maximum recommended rotations per minute vary by tube diameter, e.g., 500 rpm for Ø4 and Ø6 mm tubes, decreasing to 250 rpm for Ø12 mm tubes.

7. Key Recommendations and Limitations

• Prevent tensile and lateral forces on tubing after assembly.
• Respect minimum bending radius to avoid damage.
• Do not apply pressure or contact the release ring to avoid accidental disconnection.
• Use recommended tightening torques for threaded connections.
• Use flexible polyurethane tubing for pneumatic applications; avoid rigid tubing to protect bearing function and fitting rotation.

8. Summary of Critical Parameters

9. Product Certifications and Range

• Certifications: NSF/ANSI 169 for contact with potable water, tea, and coffee; NSF/ANSI 372 for low lead content compliance.
• Product Series: MF series for food and beverage applications (sizes 4-12 mm), AD series with protective release rings for critical environments, and other series (AP, AR) for pneumatic and mechanical connections.
• Additional Components: Bulkhead unions, elbow fittings, T and Y fittings, flow control valves, and check valves with detailed dimensional and weight data.

10. Design Features

• Protective release rings in AD series prevent dust and residue ingress, enhancing reliability in critical environments.
• Sealing rings between release ring and tubing prevent internal contamination.
• Rotating male and elbow fittings allow flexible installation configurations.

Conclusion

This document comprehensively covers specifications, assembly procedures, and application guidelines for rotary push-in fittings primarily used in food, beverage, and pneumatic systems. Emphasis is placed on proper tubing preparation, installation precautions to avoid mechanical stress and accidental disconnection, and material compliance to ensure safety and durability. Adhering to the recommended parameters and installation practices ensures optimal performance and longevity in dynamic applications involving rotation and oscillation.