Rotary coupling Rotary Full Blow Line Cupla FBH-RT, Zn Alloy - Nitto Kohki 320001300

Where a tool is turned continuously, the hose twists at a rigid coupling. The Rotary Full Blow Line Cupla combines the swivelling design of the Rotary Line Cupla with the connection technology of the FBH Full Blow range.

• Swivelling connection lets the line follow the movement of the tool instead of twisting at the coupling
• The hose stays untwisted and therefore keeps its full bore through the shift
• Zinc alloy body is lighter than a steel version and puts less load on the hose end
• Seal in nitrile rubber (NBR), the standard material for compressed air lines
• Two configurations, FBH-RE and FBH-RT, to match the position of the existing connection

Technical data from the manufacturer catalogue

Models in this series ROTARY FULL BLOW LINE CUPLA

Every model of the series as printed in the manufacturer catalogue. The row of the article offered here is highlighted.

Operating principle

• Multiple outlets are available from single air supply source.
• Sideway air outlets are rotatable to any angle.
• Choose either RT type (2 outlets) or RE type (3 outlets) to suit your application.
• The flow rate increases by 40% to 50% over that of ROTARY LINE CUPLA RT type/RE type.
• During connection and disconnection, the valve is closed, enabling connection/disconnection under zero line pressure.
• When the sleeve of socket is returned to its original position, the purge mechanism releases the residual air pressure in the plug, eliminating unpleasant popping noise and hose whip motion on disconnection.
• Built-in separation prevention mechanism prevents accidental disconnection of CUPLA, ensuring safe operation.
• The valve can be opened and closed while the socket and plug is connected.

Series comparison

Choose ROTARY FULL BLOW LINE CUPLA when one air supply of up to 1.5 MPa {15 kgf/cm2} has to feed two or three outlets that each swivel to any angle, which the single-outlet siblings HI CUPLA BL, NUT CUPLA, LOCK CUPLA 200, HI CUPLA Two Way Type, ROTARY PLUG and TWIST PLUG do not do. Against ROTARY LINE CUPLA, rated the same 1.5 MPa {15 kgf/cm2} and likewise one-way shut-off, it adds the valve that lets connection and disconnection take place under zero line pressure and the purge of the residual air pressure in the plug. PURGE LINE CUPLA and TWIST PLUG stop at 1.0 MPa {10 kgf/cm2}, PURGE HI CUPLA reaches 1.5 MPa {15 kgf/cm2} only in the PVR type, and the two-way shut-off COMPACT ZEROSPILL CUPLA at 1.0 MPa {10 kgf/cm2} addresses spill rather than branching.

Body and seal materials

Applications

• Hand-held pneumatic tools that are turned continuously in operation
• Workstations with overhead hose runs where the line would otherwise coil up
• Line ends where the threaded connection is loaded by twisting over time
• Adding a swivelling parting point to existing connection points of the Full Blow range

Safety and application notes

• Before use, please be sure to read "Safety Guide" described at the end of this book and "Instruction Sheet" that comes with the products.
• How it works, step 1 - open the valve: only after connection with the plug, you can slide the socket sleeve B toward the plug in order to open the built-in valve. Full flow path is then obtained.
• How it works, step 2 - lock the sleeve: rotate the flange counterclockwise to lock the sleeve B. Without unlocking the plug you cannot disconnect.
• How it works, step 3 - purge the residual air: to disconnect the plug, first turn the flange back to its original position for unlocking and then pull the sleeve B back to the original position. The built-in valve will be closed to purge the residual air pressure. Air will be purged out under the sleeve B.

All technical data on this page is taken from the Nitto Kohki general catalogue Quick Connect Couplings C01en-b, page 59. The complete catalogue is available for download on this page.