Quick connect coupling TSP-BV Cupla BV-2TSF, R 1/4, brass - Nitto Kohki 354212025

Viscous media such as grease lose pressure at every valve seat. The Nitto Kohki TSP Cupla is built straight through and works at 1.5 to 7.5 MPa (15 to 76 kgf/cm²) depending on size and body material.

• Valveless construction with a straight bore, which cuts pressure loss sharply and raises the flow rate
• Working pressure of 1.5 to 7.5 MPa (15 to 76 kgf/cm²) depending on size and body material
• Suitable for high viscosity fluids such as grease
• Free cross-section of the connection from 7.0 mm² (ø3 mm) to 1885 mm² (ø49 mm) across sizes 1/8" to 2"
• Seals in NBR (SG) for -20 °C to +80 °C, FKM (X-100) for -20 °C to +180 °C and EPDM (EPT) for -40 °C to +150 °C
• Braided hose version needs no hose clamp, the nut is tightened until it is flush against the hose barb base

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 TSP CUPLA Socket with Ball Valve

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

Operating principle

• One-piece design of TSP CUPLA socket and ball valve.
• Separation prevention mechanism prevents accidental disconnection during connection (when the valve is open).
• The handle of the ball valve locks the sleeve to prevent disconnection of the plug during use.
• Socket valve can be opened and shut off while socket and plug are connected.
• Ball valve design provides for high flow rate.
• High viscosity fluids such as grease can be applied.
• Interchangeable with standard TSP CUPLA plug in the same size.
• Compact and enhanced sealing design: the connection part between a standard TSP CUPLA socket and a commercially available ball valve is eliminated for enhanced sealing and the overall length is reduced by around 30%.

Series comparison

Pick the TSP CUPLA Socket with Ball Valve when the line has to be shut off and reopened at the socket while the plug stays connected, which the straight through TSP CUPLA does not provide. It is rated 1.0 MPa {10 kgf/cm2}, so lines working in the 1.5 to 7.5 MPa {15 to 76 kgf/cm2} range of TSP CUPLA and SP CUPLA Type A, or at the 3.5 MPa {35 kgf/cm2} of ZEROSPILL CUPLA, are above its rating. Its valve structure is one-way shut-off, so where both halves have to close on disconnection SP CUPLA Type A or ZEROSPILL CUPLA with their two-way shut-off apply.

Body and seal materials

Applications

• Lines carrying high viscosity fluids such as grease
• Hydraulic lines running oil
• Water, air and gas lines in plant engineering
• Chemical and steam lines with a suitably chosen seal material
• Connection of soft PVC braided hoses woven with reinforcement thread through the N version

Compatibility

Sockets and plugs connect regardless of the end configuration as long as the first digit of the model number matches. When coupled, fluid may flow in either direction, and the connection is operational in vacuum down to 0.13 Pa.

Standards and compliance

End sizes run from 1/8" to 2" as Rc or R threads, as hose barbs or for braided hose, maximum tightening torques range from 5 Nm to 500 Nm depending on size and material, and body materials are brass, nickel-plated steel and stainless steel, with SUS316 available as an option.

Safety and application notes

• Before use, please be sure to read the Safety Guide described at the end of the catalogue 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 83. The complete catalogue is available for download on this page.