Is the Quick Coupling Plug with BSPT Male Thread, NITTO KOHKI HI CUPLA, Stainless Steel 304 rated for continuous use at 15 bar in water installations?

Quick Coupling Plug with BSPT Male Thread, NITTO KOHKI HI CUPLA, Stainless Steel 304: Yes. The product description specifies a working pressure of up to 15 bar and highlights construction from AISI 304 stainless steel for durability and resistance in demanding water installations. Therefore it is rated for continuous use at 15 bar in water installations, provided installation and system conditions (temperature, flow direction—from socket to plug, sealing, and mounting) follow manufacturer recommendations.

Does the Quick Coupling Plug with BSPT Male Thread, NITTO KOHKI HI CUPLA, Stainless Steel 304 require special maintenance after prolonged use at pressures near 15 bar?

Quick Coupling Plug with BSPT Male Thread, NITTO KOHKI HI CUPLA, Stainless Steel 304 does not require special maintenance beyond standard good-practice checks after prolonged use at pressures near 15 bar. Made of AISI 304 stainless steel, it is corrosion‑resistant and designed for durable performance under demanding conditions. Recommended routine actions: regular visual inspections for wear, damage or deformation; check sealing faces and any O‑rings (if applicable) for cuts, hardening or extrusion and replace as needed; ensure threads are clean and undamaged and apply appropriate thread sealant or tape during reassembly; verify there is no leakage under operating pressure; periodically clean internal passages to prevent debris buildup that could impair sealing or flow. If used near the upper rated pressure frequently, shorten inspection intervals and replace seals more proactively. Do not exceed the specified 15 bar working pressure. If abnormal vibration, leakage or mechanical damage is observed, remove from service and repair or replace components.

Quick Coupling Plug with BSPT Male Thread, NITTO KOHKI HI CUPLA, Stainless Steel 304

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

Additional information

Material	SS – stainless steel

The Nitto Kohki HI CUPLA plug without valve, equipped with an external BSPT thread, is a highly reliable solution engineered for demanding water installations. Manufactured from premium AISI 304 stainless steel, it guarantees exceptional durability, resistance to vibrations, and long-lasting performance even in intensive operating conditions. With a working pressure of up to 15 bar, this plug ensures safe and efficient operation across a wide range of applications. Its impressive flow capacity delivers 4000 l/min at 1″, 3200 l/min at 3/4″, 2600 l/min at 1/2″, 1600 l/min at 3/8″, and 1000 l/min at 1/4″ when operating at 5 bar, making it a versatile choice for both industrial and professional use. Designed with precision, it ensures optimal flow dynamics, provided the medium is directed from the socket to the plug. This robust and efficient component is the perfect choice for users seeking a dependable connection system that combines strength, performance, and ease of integration into modern water installation setups.

List of product variants

Article number	Product variant name	DN	BAR	Availability	Actions
NK-20PM-SS	HI CUPLA quick coupling plug, GZ BSPT 1/4", AISI 304	-	15	In stock	Enquiry
NK-30PM-SS	HI CUPLA quick coupling plug, GZ BSPT 3/8", AISI 304	-	15	In stock	Enquiry
NK-400PM-SS	HI CUPLA quick coupling plug, GZ BSPT 1/2", AISI 304	-	15	In stock	Enquiry
NK-40PM-SS	HI CUPLA quick coupling plug, GZ BSPT 1/2", AISI 304	-	15	In stock	Enquiry
NK-600PM-SS	HI CUPLA quick coupling plug, GZ BSPT 3/4", AISI 304	-	15	In stock	Enquiry
NK-800PM-SS	HI CUPLA quick coupling plug, GZ BSPT 1", AISI 304	-	15	In stock	Enquiry

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The Nitto Kohki HI CUPLA plug without valve, equipped with an external BSPT thread, is a highly reliable solution engineered for demanding water installations. Manufactured from premium AISI 304 stainless steel, it guarantees exceptional durability, resistance to vibrations, and long-lasting performance even in intensive operating conditions. With a working pressure of up to 15 bar, this plug ensures safe and efficient operation across a wide range of applications. Its impressive flow capacity delivers 4000 l/min at 1″, 3200 l/min at 3/4″, 2600 l/min at 1/2″, 1600 l/min at 3/8″, and 1000 l/min at 1/4″ when operating at 5 bar, making it a versatile choice for both industrial and professional use. Designed with precision, it ensures optimal flow dynamics, provided the medium is directed from the socket to the plug. This robust and efficient component is the perfect choice for users seeking a dependable connection system that combines strength, performance, and ease of integration into modern water installation setups.