Showa Giken Industrial Pressure Rotary Fitting Pearl Rotary Joint AC (Duplex Inner Tube Fixed Screw-Mounted Type) (AC20A-8ALH) Part Number: AC20A-8ALH AC (Dual, screwed type, with fixed inner tube) is a rotary joint for supplying the medium to rotary equipment in a stable manner. Configured Specifications  Download Types Fixed Duplex Inner Tube Compatible Fluid Water / Air / Steam / Oil Maximum Operating Temperature(°C) 180 Maximum Operating Pressure(MPa) 1.47 Maximum Rotational Speed(rpm) 300 Connection Type Screw Mounting Type Types of Connection Screw for Elbow Side (Composite) Rc Types of Connection Screw for Head Side (Composite) Rc Type of Connection Thread for Rotor Side (Composite) R Nominal Connection Screw for Elbow Side (Composite) 3/4B(20A) Nominal Connection Screw for Head Side (Composite) 3/4B(20A) Mounting Screw Direction LH (Left Screw)