Hot Water CUPLA HW Type

Product catalog summary

Specifications
The document outlines the specifications for quick connect couplings, including size, torque, and flow direction. The couplings allow bi-directional fluid flow when connected. The maximum tightening torque varies by size: 3/8" at 12 Nm, 1/4" at 9 Nm, and 1/2" at 30 Nm.

Interchangeability and Air Admixture
The document specifies that different sizes of sockets and plugs cannot be connected. Air admixture and spillage volumes are provided for various models, indicating potential air inclusion during connection and fluid spillage during disconnection.

Flow Rate and Pressure Loss
Flow rate and pressure loss characteristics are tested with water at 25°C. The document includes a graph showing pressure loss in relation to flow rate for different models.

Materials and Pressure Ratings
The couplings are made of nickel-plated brass, with a working pressure of 2.0 MPa and a proof pressure of 3.0 MPa. The seal material is fluoro rubber, suitable for temperatures ranging from -20°C to +180°C.

Safety Features
The couplings include a safety lock function to prevent accidental disconnection due to vibration or impact. The document provides instructions for locking and unlocking the couplings.

Maintenance and Durability
The document advises on the replacement intervals for valves and O-rings based on continuous use at high temperatures. It emphasizes the importance of conducting performance evaluations under actual operating conditions.

Compliance and Standards
The products comply with ISO 9001 and ISO 14001 standards and the RoHS Directive, ensuring quality and environmental responsibility.

Catalog excerpts

NITTO KOHKI Quick connect couplings for use on equipment for temperature control HOT UlflTCR CUPLA HW Type JQA-2025 Couplings Division ISO 14001 JQA-EM4057 NITTO KOHKI CO., LTD Products Comply with RoHS Directive

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Working pressure Valve structure Applicable fluids* * This product is designed for use with water from -20˚C to +180˚C. When used with other fluids, check the suitability of the seal and body material. Two-way shut-off Safety lock function as a standard specification. Prevents accidental disconnection caused by vibration or impact. Safety lock function (Sleeve lock) How to lock Slide the Lock Ring in the direction of the arrow A and rotate it simultaneously. When the Stopper is aligned with the shallower cutout on the Lock Ring, the Cupla will be locked. Slide the Lock Ring in the direction of...

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Quick connect couplings for use on equipment for temperature control Approximate time for Valve / O-ring replacement Test conditions • Testing device: Mold temperature controlling machine • Fluid: Clean water • Test condition: Continuous test with the Cupla connected Please replace the whole Cupla in approximately 1000 hours. The valve cannot be replaced. Before test (unused) Please replace the whole Cupla in approximately 3000 hours. The valve cannot be replaced. Before test (unused) Please replace the O-rings of the Socket in approximately 700 hours. The packing starts to swell Please replace...

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Prior to use, be sure to read the “Precautions Relating to the Use of All Cuplas” on the Cupla general catalog and the “Instruction Sheet” that comes with the product and use them correctly and safely. NITTO KOHKI CO., LTD. web www.nitto-kohki.co.jp/e Head Office 9-4, Nakaikegami 2-chome, Ohta-ku, Tokyo 146-8555, Japan Tel : +81-3-3755-1111 Fax : +81-3-3753-8791 E-mail : [email protected] Specifications and designs are subject to change at any time without notice.

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.

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