Is the Nickel-plated steel quick coupling, socket with GW BSP and BSPT, 350 series CUPLA, NITTO KOHKI suitable for continuous use at +180Â°C without seal degradation?

Yes. Nickel-plated steel quick coupling, socket with GW BSP and BSPT, 350 series CUPLA, NITTO KOHKI is specified for operation from -20Â°C to +180Â°C and uses Viton (FKM) seals. Viton is generally suitable for continuous use at +180Â°C.its typical upper continuous service temperature is around 200Â°C depending on compound and application.so at +180Â°C it should maintain sealing performance without degradation under normal conditions. Caveats: actual life at +180Â°C depends on factors not fully specified here: exact Viton formulation, exposure to aggressive fluids, pressure cycles (up to 345 bar specified), pulsations, mechanical vibration, and installation conditions. For continuous high-temperature service under high pressure or aggressive media, confirm with NITTO KOHKI or supplier for the specific seal compound and recommended continuous-temperature rating and consider periodic inspection/replacement intervals.

Can the Nickel-plated steel quick coupling, socket with GW BSP and BSPT, 350 series CUPLA, NITTO KOHKI be autoclaved or steam-sterilized without damaging seals?

Nickel-plated steel quick coupling, socket with GW BSP and BSPT, 350 series CUPLA, NITTO KOHKI: Seals are Viton and the listed operating temperature range is -20Â°C to +180Â°C. Standard steam sterilization (autoclaving) uses saturated steam at ~121Â°Câ134Â°C, which falls within the couplingâs stated temperature limit, so brief autoclave cycles at those temperatures are unlikely to thermally degrade Viton. However, repeated autoclaving, higher temperatures, prolonged exposure, or aggressive chemicals/condensate could accelerate seal aging, embrittlement or loss of elasticity. Also consider nickel-plated steel corrosion risk from condensate and possible effects on lubrication. Recommendation: autoclaving at â¤134Â°C for limited cycles is generally acceptable but verify with manufacturer for your specific sterilization regimen and perform compatibility/aging tests before service use.

Nickel-plated steel quick coupling, socket with GW BSP and BSPT, 350 series CUPLA, NITTO KOHKI

All products, Hydraulic quick couplings/

Additional information

Material	CS – steel (cast iron)

NITTO KOHKI series 350 CUPLA quick coupling socket with internal BSP and BSPT thread. Leak-free “flat-face” quick couplings type IF. Manufactured in Japan from special alloy steel. Characterized by excellent durability, resistance to vibrations and pulsating pressure, very low air inclusion. The socket features a safety pin to prevent accidental disconnection. Used, among others, in hydraulic systems of casting equipment, where sudden pressure changes occur. The quick coupling can be operated with one hand. A distinctive feature is the working pressure, which does not depend on the size of the quick coupling. Material: nickel-plated steel. Operating temperature: from -20°C to +180°C. Sealing: viton. Working pressure: up to 345 bar. Flow has been provided for a pressure drop of 3 bar.

List of product variants

Article number	Product variant name	DN	BAR	Availability	Actions
NK-350-10S	Socket 350 CUPLA 1.1/2" with 1.1/4" BSPT thread, Viton seal	-	345	In stock	Enquiry
NK-350-12S	Socket 350 CUPLA 1.1/2" with 1.1/2" BSPT thread, Viton seal	-	345	In stock	Enquiry
NK-350-2S	Socket 350 CUPLA 1/4" with 1/4" BSPT thread, Viton seal	-	345	In stock	Enquiry
NK-350-3S	Socket 350 CUPLA 1/4" with 3/8" BSPT thread, Viton seal	-	345	In stock	Enquiry
NK-350-3S-3G	Socket 350 CUPLA 1/4" with 3/8" BSP thread, Viton seal	-	345	In stock	Enquiry
NK-350-4S	Socket 350 CUPLA 1/2" with 1/2" BSPT thread, Viton seal	-	345	In stock	Enquiry
NK-350-4S-4G	Socket 350 CUPLA 1/2" with 1/2" BSP thread, Viton seal	-	345	In stock	Enquiry
NK-350-6S	Socket 350 CUPLA 3/4" with 3/4" BSPT thread, Viton seal	-	345	In stock	Enquiry
NK-350-6S-6G	Socket 350 CUPLA 3/4" with 3/4" BSP thread, Viton seal	-	345	In stock	Enquiry
NK-350-8S	Socket 350 CUPLA 1" with 1" BSPT thread, Viton seal	-	345	In stock	Enquiry
NK-350-8S-8G	Socket 350 CUPLA 1" with 1" BSP thread, Viton seal.	-	345	In stock	Enquiry

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NITTO KOHKI series 350 CUPLA quick coupling socket with internal BSP and BSPT thread. Leak-free “flat-face” quick couplings type IF. Manufactured in Japan from special alloy steel. Characterized by excellent durability, resistance to vibrations and pulsating pressure, very low air inclusion. The socket features a safety pin to prevent accidental disconnection. Used, among others, in hydraulic systems of casting equipment, where sudden pressure changes occur. The quick coupling can be operated with one hand. A distinctive feature is the working pressure, which does not depend on the size of the quick coupling. Material: nickel-plated steel. Operating temperature: from -20°C to +180°C. Sealing: viton. Working pressure: up to 345 bar. Flow has been provided for a pressure drop of 3 bar.