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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

Overview
The 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 equivalent to 1.5 inch nominal bore, this rotary joint delivers high flow capacity while maintaining a compact footprint. The self aligning design with 20 degree floating angle automatically compensates for minor misalignment, reducing shaft stress and extending seal service life.

Key Specifications
Parameter : 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 deg (Self Aligning)
Applicable Media : Water, Air, Saturated Steam

Core Advantages

• Self Aligning 20 Degree Floating Design — The rotor freely adjusts within a 20 degree floating range during operation, compensating for installation misalignment and minimizing vibration and mechanical stress on bearings and seals.
• Stable Low Speed Performance — Engineered for applications up to 10 RPM, ensuring smooth, leak free operation in low speed rotating tables, rollers, turntables and indexing machinery.
• High Pressure and Temperature Capability — Rated for working pressures up to 1.0 MPa and temperatures up to 200 C; the sealing system remains stable under continuous saturated steam service.
• Multi Media Compatibility — A single universal model handles water, compressed air and saturated steam, eliminating the need for separate rotary joints per media type.
• Low Maintenance and Leak Proof — Optimized seal structure provides long term leak free performance; self aligning capability reduces seal wear and extends maintenance intervals.
• Cost Effective Solution — The universal design reduces inventory complexity and procurement cost; the product is presented as delivering significant cost savings 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

• 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
• Advantages: Low maintenance; Leak-proof; Cost-effective