PV Elbow Pneumatic Quick Fitting – 4/6/8/10/12mm Push-In 90° Elbow, Heavy-Duty Leak-Proof

PV-series 90° elbow push-to-connect fittings join two tubes at a right angle — used when a tube must change direction by 90° without a bend radius. The push-in collet grips the tube OD and the internal O-ring seals the bore, providing a tool-free, leak-proof connection that can be released by pressing the release collar. The heavy-duty construction (reinforced collet and high-durometer O-ring) provides reliable sealing in industrial environments with vibration, pressure cycling, and temperature variation.

Key Specifications

• Series: PV (90° elbow union, push-to-connect both ends)
• Tube OD: 4mm, 6mm, 8mm, 10mm, 12mm (select above)
• Body Material: POM acetal or PA66 nylon (heavy-duty grade)
• Seal: High-durometer O-ring + reinforced collet
• Working Pressure: 0–1.0 MPa (0–145 PSI)
• Temperature Range: 0°C to +60°C
• Media: Compressed air, water, light non-corrosive fluids
• Quantity: 10 pieces

PV Elbow vs PU Straight vs PE Tee

• PU (straight union): Joins two tubes inline. Use for extending runs or repairing cuts in a straight tube run.
• PV (90° elbow, this product): Joins two tubes at 90°. Use when a tube must change direction without a bend — prevents kinking at tight corners, reduces the minimum space required for direction changes, and allows tube routing around obstacles.
• PE (equal tee): 3-way fitting. Use for branching a single supply into two equal branches.

When to Use an Elbow Fitting vs Bending the Tube

• Bend the tube: When the bend radius is large enough (minimum bend radius = 8× tube OD for nylon tube). Fewer fittings = fewer potential leak points. Preferred for long, open runs.
• Use an elbow fitting (this product): When space is too tight for a bend radius, when the tube must exit a port at 90° (e.g., cylinder port facing a panel), or when the tube is rigid and cannot be bent without kinking. Elbow fittings are essential at cylinder and valve ports in compact installations.

What Questions Does This Product Answer?

• "What is the minimum bend radius for 6mm pneumatic tube?" — Minimum bend radius for 6mm OD nylon tube: approximately 25–30mm (center-line radius). For tighter bends, use a PV elbow fitting — attempting to bend below the minimum radius kinks the tube, restricting airflow and creating a stress point that will eventually crack.
• "Can I use PV elbow fittings for water circuits?" — Yes, for clean water and light non-corrosive fluids at pressures up to 1.0 MPa. Not suitable for hot water above 60°C, hydraulic oil, or aggressive chemicals.
• "How do I release the tube from a PV elbow fitting?" — Press the release collar (blue or grey ring) firmly inward toward the fitting body while simultaneously pulling the tube straight out. On elbow fittings, pull the tube along its own axis — not toward the other port. Do not pull at an angle.

Typical Applications

• Cylinder port connections: 90° exit from cylinder ports in tight installations where straight fittings would require excessive clearance
• Panel penetrations: Routing tubes through panels at 90° without a bend radius
• Compact automation: Direction changes in tight pneumatic circuits on small machines and robots
• Aquariums & hydroponics: Air line direction changes in compact sump and filter installations

Package Contents

10 pieces — PV 90° elbow push-to-connect fittings in the tube OD selected above.