Quick connect coupling TSP Cupla 4TSN-120, brass - Nitto Kohki 354111041

Lines that are opened and closed several times a shift lose flow at every valved coupling. TSP Cupla uses a valveless straight through bore and is rated for 1.5 to 7.5 MPa working pressure, which keeps pressure loss low and lets high viscosity media such as grease pass without restriction.

• Valveless straight through construction cuts pressure loss and achieves a high flow rate.
• Working pressure of 1.5 to 7.5 MPa (15 to 76 kgf/cm2), depending on body material and size.
• Handles high viscosity fluids such as grease, because no valve poppet narrows the bore.
• Three seal materials cover -20 to +80 °C with NBR, -20 to +180 °C with FKM and -40 to +150 °C with EPDM.
• Bodies in brass, nickel-plated steel or stainless steel, with SUS316 available as an option.
• Sizes from 1/8 inch to 2 inch with hose barb, male thread, female thread or braided hose connection.

Technical data from the manufacturer catalogue

Dimensions

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

Legend: L = overall length; D = socket outside diameter; B = bore

Models in this series TSP CUPLA

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

Operating principle

• Valveless construction drastically saves pressure loss and achieves high flow rate.
• Suitable for high viscosity fluids (such as grease).
• Available in various standard body materials, sizes and end configurations to cope with diversified applications and operating situations.
• No hose clamp required! Simple and secure connection to braided hose.
• For medium pressure general applications.
• Valveless structure suits high viscosity fluids, with various body materials, sizes and end configurations.
• Braided hose connection types are newly added.
• Fluid flow can be bi-directional when socket and plug are connected.

Series comparison

Choose TSP CUPLA when the line may stay open on disconnection and the priority is low pressure loss and high flow, including high viscosity fluids such as grease; its straight through, valveless construction covers 1.5 to 7.5 MPa {15 to 76 kgf/cm2} in sizes 1/8 inch to 2 inch. SP CUPLA Type A covers the same 1.5 to 7.5 MPa {15 to 76 kgf/cm2} but is two-way shut-off, so it is the choice when both sides must close on disconnection, and ZEROSPILL CUPLA is two-way shut-off with spill reduction at 3.5 MPa {35 kgf/cm2}. TSP CUPLA Socket with Ball Valve is one-way shut-off and rated 1.0 MPa {10 kgf/cm2}, so it fits only where the pressure stays within that limit.

Body and seal materials

Applications

• Medium pressure hydraulic lines carrying hydraulic oil
• Grease and lubricant lines with high viscosity media
• Compressed air and gas lines on machines and test benches
• Water and chemical lines, with the seal selected to match the fluid
• Steam service and vacuum applications down to 1.3 x 10-1 Pa when coupled

Compatibility

A socket and a plug connect whenever the first digit of the model number is the same, regardless of the end configuration. Once coupled, fluid may flow from either the plug side or the socket side.

Standards and compliance

Threads are supplied as R for male ends and Rc for female ends, the seals use nitrile rubber (NBR), fluoro rubber (FKM) or ethylene-propylene rubber (EPDM), and SUS316 is available as a body material option.

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.
• Note: Depending on the temperature of steam / hot water, the heat may damage seal materials.
• Note: See the pages of Seal Material Selection Table at the end of this catalog for the suitability of seal materials to fluids.
• Applicable fluids for braided hose connection type depend upon the specifications of braided hoses to be used.
• Tighten the nut for braided hoses until it is flush against the hose barb base.
• Please use braided hoses available in the market.

All technical data on this page is taken from the Nitto Kohki general catalogue Quick Connect Couplings C01en-b, page 81. The complete catalogue is available for download on this page.