NITTO KOHKI TSP Cupla 10TPM STEEL Valveless Coupler Plug, 1-1/4"

The internal structure of this model features a Straight Through design (valveless two-way open bore), with no internal valve mechanism or spring to obstruct fluid flow. Fluids can pass through the 1 1/4-inch cross-section freely at maximum flow rate without resistance, resulting in an extremely low pressure drop. It is ideally suited for power transmission lines, high-viscosity fluid delivery, or high-circulation fluids stably and efficiently.

Valveless Straight Through Design: 100% open flow path allows fluid to flow at full capacity; easy to clean or flush when changing fluids in piping systems (CIP), completely clean with no accumulation or clogging.

Hardened Special Steel Body: High-density construction, highly resistant to torsion, impact, and wear from heavy-duty use—far superior to standard materials.

Sharp, Deep Male Thread Standard R 1 1/4" (BSPT): High-precision CNC-machined threads ensure a tight, leak-free connection with female main pipe fittings, providing complete safety and reliability.

High Working Pressure Resistance up to 3.0 MPa: Extra-thick hardened construction withstands normal working pressure up to 30 bar and a proof pressure of up to 4.5 MPa (45 bar).

Japanese International Standard Connection Dimensions: Quickly connects to 1 1/4-inch TSP Cupla series female sockets with a secure, tight, and vibration-free lock.

High-Viscosity Fluid and Oil Piping Systems: Ideally suited for lines supplying engine oil, low-pressure hydraulic oil, or viscous lubricants, where conventional valved couplings often cause slow flow and clogging.

High-Volume Air Lines: Used as quick-connect points on large air pipes to deliver massive air volume (CFM) to heavy machinery in a short time.

Fluid Transfer Systems in Steel and Automotive Industries: Suitable for operating environments requiring frequent pipe connection and disconnection; the hardened steel body extends service life without cumulative wear.

Industrial Drainage and Wastewater Systems: Used in connection points for cooling tower circulation drainage pipes or coolant supply lines for large-scale machinery.

Specifications
Manufacturer brand: NITTO KOHKI (Made in Japan)

Product Series: TSP Cupla

Product Model Code: 10TPM STEEL

Coupler Type: Male Plug

Body Size: 1 1/4 inch (1 1/4")

End Connection Type: Male Thread 1 1/4 inch, standard R 1 1/4 (BSPT)

Internal Valve System: Valveless / Straight Through

Body Material: Special Hardened Steel

Working Pressure: 3.0 MPa / 30 bar / 435 PSI

Proof Pressure: 4.5 MPa / 45 bar / 652 PSI

Operating Temperature Range: Depends on the type of rubber seal installed in the mating female socket (the male plug itself has no built-in seal).

Applicable Fluids: Air, gas, lubricating oil, hydraulic oil, and general industrial fluids non-corrosive to steel.