Does the Quick coupling socket with hose end and valve, NITTO KOHKI HI CUPLA, carbon steel allow flow from plug to socket or must the medium flow from the socket to the plug?

Quick coupling socket with hose end and valve, NITTO KOHKI HI CUPLA, carbon steel: the medium must flow from the socket to the plug. The product is designed for flow in that direction (socket â plug); it does not permit flow from plug to socket.

Is the Quick coupling socket with hose end and valve, NITTO KOHKI HI CUPLA, carbon steel suitable for use with reverse flow (plugâsocket)?

No. Quick coupling socket with hose end and valve, NITTO KOHKI HI CUPLA, carbon steel is not suitable for reverse flow (plug â socket). The manufacturerâs note explicitly states the medium must flow from the socket to the plug, so using it in reverse may compromise valve operation, sealing, performance and safety. Use a coupling rated for reverse flow or consult the manufacturer for an appropriate model.

Quick coupling socket with hose end and valve, NITTO KOHKI HI CUPLA, carbon steel

Q: Can the Quick coupling socket with hose end and valve, NITTO KOHKI HI CUPLA, carbon steel be used with reverse flow (plug to socket)?

No - Quick coupling socket with hose end and valve, NITTO KOHKI HI CUPLA, carbon steel is not suitable for reverse flow (plug to socket). The manufacturer specifies the medium must flow from the socket to the plug; using it in reverse can impair sealing, valve function and safety. Use the coupling only in the intended flow direction.

All products, General-purpose low-pressure quick couplings/

Additional information

Material	CS – steel (cast iron)

Nitto Kohki HI CUPLA series socket with a hose end, featuring excellent durability and vibration resistance. Designed for connecting pneumatic tools to the air supply system. Material: carbon steel. Working pressure: 15 bar. Operating temperature: from -20°C to +80°C (NBR). Flow rate: 4000 l/min (1″), 3200 l/min (3/4″), 2600 l/min (1/2″), 1600 l/min (3/8″), 1000 l/min (1/4″) at a pressure of 5 bar. Note: the medium must flow from the socket to the plug.

List of product variants

Article number	Product variant name	DN	BAR	Availability	Actions
NK-20SH-S	HI CUPLA quick coupling socket, for 1/4" hose, chrome-plated steel	-	15	In stock	Enquiry
NK-30SH-S	HI CUPLA quick coupling socket, for 3/8" hose, chrome-plated steel	-	15	In stock	Enquiry
NK-400SH-S	HI CUPLA quick coupling socket, for 1/2" hose, chrome-plated steel	-	15	In stock	Enquiry
NK-40SH-S	HI CUPLA quick coupling socket, for 1/2" hose, chrome-plated steel	-	15	In stock	Enquiry
NK-600SH-S	HI CUPLA quick coupling socket, for 3/4" hose, chrome-plated steel	-	15	In stock	Enquiry
NK-800SH-S	HI CUPLA quick coupling socket, for 1" hose, chrome-plated steel	-	15	In stock	Enquiry

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Nitto Kohki HI CUPLA series socket with a hose end, featuring excellent durability and vibration resistance. Designed for connecting pneumatic tools to the air supply system. Material: carbon steel. Working pressure: 15 bar. Operating temperature: from -20°C to +80°C (NBR). Flow rate: 4000 l/min (1″), 3200 l/min (3/4″), 2600 l/min (1/2″), 1600 l/min (3/8″), 1000 l/min (1/4″) at a pressure of 5 bar. Note: the medium must flow from the socket to the plug.