Quick connect coupling HSP Cupla 12HP, R 1 1/2, steel - Nitto Kohki 363212200

Hydraulic lines that are opened and closed at power units, clamping fixtures or test rigs need a connection that takes pressure impulses and stays dry on release. HSP Cupla works from 14.0 to 20.6 MPa in port sizes 1/4 inch to 2 inch and shuts off in socket and plug at the same time.

• Working pressure up to 20.6 MPa in sizes 1/4 inch to 1 inch, 18.0 MPa in 1 1/4 and 1 1/2 inch and 14.0 MPa in 2 inch, which covers the range of common hydraulic power units.
• Quenched special steel body with nickel plating, built to take vibration, impact and pressure impulses.
• Automatic shut-off valves in both socket and plug keep the hydraulic oil in the line on disconnection and keep the workplace clean.
• Male thread versions deliver 5 to 10 percent more flow than a female thread version with a commercial conversion nipple and are shorter overall because they mount directly on the power unit.
• NBR as the standard seal for -20 °C to +80 °C, FKM available on request for -20 °C to +180 °C.
• Once coupled, fluid may flow in either direction, and the low pressure loss suits hydraulic oil of 32 x 10-6 m2/s viscosity.

Technical data from the manufacturer catalogue

Dimensions

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

Legend: L = overall length; H = width across flats or outside dimension; D = socket outside diameter; C = sleeve dimension; T = thread or barb size

Models in this series HSP CUPLA

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

Operating principle

• Special steel body is tough against vibration and impact. Male and female thread end configurations are available.
• Low pressure loss characteristic suits hydraulic equipment applications.
• Quenched special steel body. Powerful impact resistance, especially against impulses.
• Automatic shut-off valves in both socket and plug prevent fluid spill out on disconnection.
• In addition to conventional female thread type, male thread types (male tapered thread, male parallel thread with 30 deg flare, and male parallel thread with 30 deg cone-seat) are available. Male thread types are designed especially for direct connection to hydraulic power units effectively.
• Male parallel thread type complies with both metal seal and O-ring seal. (In case of O-ring seal, O-rings available in the market can be used.)
• Optional HSP-DC CUPLA series are available for die-casting machine applications with severe pressure variation. (See page 158 of HSP-DC CUPLA for details.)
• The overall length of male thread type is shorter than that of female thread type plus conversion nipple available in the market.

Series comparison

Choose HSP CUPLA when hydraulic oil has to be coupled from 1/4 inch to 2 inch within 14.0 to 20.6 MPa {142 to 210 kgf/cm2} and the coupling is to go straight onto a hydraulic power unit, since this series adds male tapered and male parallel thread ends (30 deg flare and 30 deg cone-seat) to the conventional female thread. For circuits above that band the two-way shut-off sibling series are rated higher: 280 CUPLA at 27.5 to 31.5 MPa {281 to 321 kgf/cm2}, 350 CUPLA at 34.5 MPa {352 kgf/cm2}, 450B CUPLA at 44.1 MPa {450 kgf/cm2} and 700R CUPLA at 68.6 MPa {700 kgf/cm2}. Note that HSP CUPLA has no interchangeability with 210 CUPLA, 280 CUPLA or 450B CUPLA, so an installed base on those series does not carry over.

Body and seal materials

Applications

• Direct connection to hydraulic power units using the male tapered or male parallel thread versions
• Tool and cylinder changes on hydraulic clamping and pressing equipment
• Die casting machines with severe pressure variation, covered by the optional HSP-DC version
• Test and measuring benches where oil lines are disconnected and reconnected in cycles
• Vacuum service, released for the coupled pair only and not for socket or plug on its own

Compatibility

4HSP connects with 6HSP and 10HSP with 12HSP. Other combinations of different sizes are not connectable. There is no interchangeability between HSP Cupla and 210 Cupla or 280 Cupla, even where sizes look similar.

Standards and compliance

The counterpart of the GP version is a female parallel thread to JIS B 8363 with 30 degree cone-seat, the counterpart of the GS version is a female parallel thread to JIS B 8363 with 30 degree flare, and parallel thread versions accept both metal seal and commercial O-rings in sizes P-11 to P-24.

Safety and application notes

• Precautions for use: There is no interchangeability between HSP CUPLA and 210 CUPLA, 280 CUPLA or 450B CUPLA. Do not connect to each other even if sizes are similar.
• Before use, please be sure to read the Safety Guide described at the end of this book and the 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 91. The complete catalogue is available for download on this page.