High-Pressure up to 700 Bar Nitto Kohki

Nitto Kohki high-pressure quick couplings cover operating pressures from 210 bar (210 Cupla, S210 Cupla) up to 700 bar (700R Cupla), with intermediate ratings at 280, 350, and 450 bar - making them among the widest pressure-range coupling series commercially available. All series feature a double-valve piston mechanism that ensures zero-spill, non-spurt disconnection under live pressure, compliant with ISO 7241 series B dimensional standards. Body materials include carbon steel, stainless steel (SUS316), and brass depending on the series, with NBR, FKM, and HNBR seal options to handle hydraulic oil, water-glycol, and synthetic ester fluids.

As an authorized Nitto Kohki distributor, esd.equipment stocks 147 line items across 10 series - from the compact HSU Cupla and HSP Cupla hydraulic couplings to the Hyper HSP Cupla engineered for pulsating high-cycle applications. The Purge Adapter range completes the portfolio by enabling air-bleed and residual-pressure release prior to coupling engagement, a critical safety step in closed hydraulic circuits.

Nitto Kohki High-Pressure Cupla Series - Product Overview

Typical application areas: Industrial hydraulic tooling and test rigs (ISO 7241, DIN 20066), high-pressure water-jetting equipment (DIN EN 1829), automotive assembly press lines (IATF 16949, VDA 6.3), semiconductor and LCD panel manufacturing equipment (SEMI S2), aerospace MRO hydraulic ground support equipment (AS9100), oil and gas subsea tooling (ISO 4413), plastic injection moulding machines, and high-cycle industrial automation circuits requiring zero-spill coupling changes under live pressure.