Groco 1/2´´ Hex Nipple

GROCO PN Series Bronze Close Nipple | Marine Plumbing Adapter

Ensure the absolute integrity and longevity of your vessel´s critical plumbing systems with the GROCO PN Series Close Check Nipple. Expertly engineered for the demanding marine environment, this essential adapter is the professional standard for creating robust, leak-free, and corrosion-resistant connections between vital components below and above the waterline. Don´t compromise on safety or performance; choose the component trusted by boat builders and experienced marine mechanics worldwide.

PN Series cast bronze pipe nipples provide exact alloy compatibility for making inter-connections between numerous marine components such as seacocks strainers and check valves.

Cast-in wrench flat simplifies installation and removal.

Full flow.



Uncompromising Reliability for Peace of Mind

The GROCO PN Series nipple is more than just a connector; it´s an investment in your boat´s safety. Its primary benefit lies in preventing galvanic corrosion—a destructive electrochemical process that occurs when dissimilar metals are connected in a saltwater environment. By using a nipple made from the same high-quality cast bronze as your GROCO seacocks, strainers, and valves, you create a system with perfect alloy compatibility. This eliminates the risk of the fitting becoming the "sacrificial" metal, which can lead to rapid deterioration, leaks, and potentially catastrophic failure.

Key Benefits:

* Eliminates Galvanic Corrosion: Provides exact alloy compatibility with other bronze marine hardware, safeguarding the structural integrity of your entire plumbing assembly.
* Effortless Installation & Maintenance: The signature cast-in hexagonal wrench flat is a game-changer. It allows for the use of a standard wrench, providing a secure grip for tightening and removal without damaging the nipple or the expensive components it connects to. Say goodbye to the struggles and risks of using pipe wrenches on standard round nipples.
* Optimized System Performance: The full-flow internal design ensures there is no restriction to water movement. This is critical for maintaining the efficiency of engine cooling systems, raw water intakes, and sanitation systems, allowing pumps and other equipment to operate at their peak capacity.
* Superior Durability: Constructed from rugged, marine-grade cast bronze, these nipples are built to withstand the harsh realities of the marine environment, offering exceptional resistance to corrosion, electrolysis, and degradation over time.

Main Features:

* Professional Grade Construction: Part of the renowned GROCO PN Series, designed for seamless integration.
* Integrated Wrench Flat: Cast-in hexagonal flats for easy, secure, and damage-free installation with standard tools.
* Full-Flow Design: Machined for maximum water throughput, preventing performance bottlenecks in your plumbing lines.
* Precision Threads: Features clean, uniform NPT (National Pipe Taper) threads for secure, leak-proof seals when used with appropriate thread sealant.

This close nipple is the ideal adapter for tight spaces, allowing you to create strong, low-profile connections between two female-threaded components. Whether you are performing a new installation, refitting an older vessel, or conducting routine maintenance, the GROCO PN nipple provides the reliability and ease-of-use that the marine environment demands.

Attributes and Technical Specifications
* Category: Adapters, Pipe Fittings
* Material: Marine-Grade Cast Bronze
* Thread Type: NPT (National Pipe Taper)
* Design: Full Flow Bore
* Key Feature: Cast-In Hexagonal Wrench Flat
* Application: Inter-connecting marine plumbing components like seacocks, ball valves, strainers, pumps, and check valves.