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HK80 Cold Rolling Mill Rotary Joint

The rotary joint of the slag cooler adopts high-performance sealing materials and precision manufacturing technology to ensure long-term stable work under high temperature, high pressure and high-speed rotation.
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  • HK Series

  • FUXUAN

Parameters of HK Rotary Joints for Slag Cooler

Category Specification
Flow Configuration Monoflow (Single Passage):
• Single fluid path (rotating or stationary pipe).

Dual Flow (Dual Passage):
Option A: Rotating inner pipe + Stationary outer pipe.
Option B: Stationary inner pipe + Rotating outer pipe.
Connection Type Radial housing connection (ports perpendicular to rotation axis).
Housing Material Standard: Brass (water/oil).
Optional: Stainless steel (SS304/SS316 for steam/high temp).
Sealing System • Balanced mechanical seals (spring-loaded).
• Quick-replaceable seal components.
Max. Pressure 20 bar (290 psi).
Max. Speed 3000 RPM.
Max. Temperature 150°C (302°F).
Compatible Media Water, Oil, Steam* (dry saturated, non-corrosive).
Leakage Rate <0.1 mL/min (at rated pressure).
Pressure Surge Tolerance 1.5× max pressure (transient).
Mounting Options Threaded (PT/BSPT, NPT, G/BSPP) or flanged (specify size).
Standards Compliance ISO 9001, RoHS.
Optional Features • Electrically insulated version.
• Thermal insulation.
• Integrated sensors (pressure/temperature).


剖面图

Models of the rotary joint for slag cooler


Model A B C D N L L1 L2
JDHK-15 R1/2" Rp1/2" Rp3/8" 56 13 34 62 82
JDHK-20 R3/4" Rp3/4" Rp1/2" 64 17.5 34 73 100
JDHK-25 R1" Rp1" Rp3/4" 72 23 42 83 110
JDHK-32 R1-1/4" Rp1-1/4" Rp1" 87 31 53 102 140
JDHK-40 R1-1/2" Rp1-1/2" Rp1-1/4" 94 38 60 150 196
JDHK-50 R2" Rp2" Rp1-1/4" 117 49 66 202 252




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