Quick connect coupling Lock Cupla 200 L200-30SM, STEEL - Nitto Kohki 319811751

A connection that works itself loose in service means downtime. The Nitto Kohki Lock Cupla 200 is the L200 socket range with a locking mechanism, built in steel with an NBR seal.

• Socket with a locking mechanism that holds the plug once it is connected
• Steel body across the whole range
• NBR as the sealing material on every model
• Three sizes within the L200 model range, marked 20, 30 and 40
• Three end configurations per size, male thread marked SM, female thread marked SF and hose barb marked SH

Technical data from the manufacturer catalogue

Dimensions

Dimensions in millimetres. Values in brackets apply in the connected condition.

Legend: L = overall length; T = thread or barb size

Models in this series LOCK CUPLA 200

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

Operating principle

• Push-to-connect operation. Added easy lock design for safety!
• Separation prevention mechanism prevents accidental disconnection after connection. Good for connections between hoses.
• Simple one push of plug and socket to each other for connection. Easy handling improves job efficiency.
• Ball bearing swivel mechanism prevents hose twists and relieves load on holding hands (SNRG type).
• To mount on hose, simply slide it over the nipple and tighten the nut (SNRG type).
• Hose guard nut to prevent hose from kinking as a standard feature (SNRG type).
• Low pressure loss valve design gives improved flow rate.

Series comparison

LOCK CUPLA 200 is the choice where an air line has to stay connected: it shares the working pressure of 1.5 MPa {15 kgf/cm2} and the one-way shut-off valve of HI CUPLA BL, NUT CUPLA and the ROTARY series, and what sets it apart from them is the separation prevention mechanism on the connected pair, which suits hose-to-hose joints. Where the line instead has to swivel freely or be purged, the ROTARY and PURGE LINE variants cover that, PURGE LINE CUPLA at 1.0 MPa {10 kgf/cm2}. It is rated for air with a one-way shut-off, so where fluid must not escape on disconnection the two-way shut-off COMPACT ZEROSPILL CUPLA at 1.0 MPa {10 kgf/cm2} applies instead.

Body and seal materials

Applications

• Lines where the connection must not come apart unintentionally
• Workstations where the connected device is changed often
• Coupling points exposed to movement or vibration
• Mounting directly on a threaded port or on the hose through the barb version

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.

All technical data on this page is taken from the Nitto Kohki general catalogue Quick Connect Couplings C01en-b, page 47. The complete catalogue is available for download on this page.