OverviewThe DN40 universal rotary union is a low speed single-passage rotating joint designed for reliable fluid transfer between stationary supply lines and rotating equipment. With a 40mm inner diameter (1.5 inch nominal bore) it delivers high flow capacity in a compact footprint. The self-aligning design with 20° floating angle compensates for minor misalignment, reducing shaft stress and extending seal life.
Short Description- DN40 high temperature resistant rotary joint
- Model Type: Universal Rotary Union / Swivel Joint
- Inner Diameter: 40mm (DN40 / 1.5")
- Performance: ≤10 RPM, ≤1.0 MPa, ≤200°C
- Floating Angle: 20° (Self-aligning)
- Applicable Media: Water, Air, Saturated Steam
- Advantage: Low maintenance, Leak-proof, Cost-effective
Key SpecificationsParameter : Specification
Model Type : Universal Rotary Union / Swivel Joint
Inner Diameter : 40mm (DN40 / 1.5")
Max Speed : ≤10 RPM
Max Pressure : ≤1.0 MPa
Max Temperature : ≤200 °C
Floating Angle : 20° (Self Aligning)
Applicable Media : Water, Air, Saturated Steam
Core Advantages- Self Aligning 20° Floating Design — Rotor adjusts within a 20° floating range to compensate installation misalignment and reduce vibration and mechanical stress.
- Stable Low Speed Performance — Engineered for applications up to 10 RPM for smooth, leak-free operation in low-speed rotating tables, rollers and indexing machinery.
- High Pressure & Temperature Capability — Rated for working pressures up to 1.0 MPa and temperatures up to 200 °C; sealing system stable under continuous saturated steam.
- Multi Media Compatibility — Single universal model handles water, compressed air and saturated steam, simplifying inventory.
- Low Maintenance & Leak Proof — Optimized seal structure provides long-term leak-free performance and extended maintenance intervals.
- Cost Effective Solution — Universal design reduces procurement cost compared to dedicated rotary joint configurations.
Typical Applications- Packaging machinery and filling lines
- Textile dyeing and finishing equipment
- Rubber and plastics processing machinery
- Steel metallurgy rotary kilns and dryers
- 3C electronics automation production lines
- Steam heated rotating drums and corrugators
- Pneumatic clutch and brake rotating interfaces
Caractéristiques / Spécifications techniques- Inner Diameter: 40 mm (DN40 / 1.5")
- Max Speed: ≤10 RPM
- Max Pressure: ≤1.0 MPa
- Max Temperature: ≤200 °C
- Floating Angle: 20° (Self-aligning)
- Applicable Media: Water, Air, Saturated Steam
- Design: Single passage, self-aligning swivel joint
- Benefits: Low maintenance, leak-proof, cost-effective