Marine Brass Quick Connect Coupler Plug - Male Thread PM Series

This brass quick connect coupler plug with male thread is designed for high-performance pneumatic and fluid transfer systems in marine environments. The plug mates with standard PM-series couplers, offering fast and secure connections for air tools, water lines, and hydraulic equipment onboard vessels and shipboard machinery.

Constructed from corrosion-resistant brass, this plug ensures long service life in saltwater and harsh marine conditions. The precision-machined male thread provides a tight, leak-free fit with matching fittings, while the smooth push-to-connect operation enhances operational efficiency for deck crews and engineers.

Whether for routine maintenance or critical shipboard operations, this PM-series plug is an essential component for your marine hose and coupling toolkit.

Key Features

Technical Specifications

PropertySpecification
SeriesPM
TypePlug with male thread
MaterialBrass
Thread Size1/4" NPT (standard) / 3/8" NPT available
Working Pressure300 PSI (20 bar) max
Operating Temperature-20°C to +80°C (-4°F to 176°F)
Seal MaterialNitrile (Buna-N)
Media CompatibilityAir, water, hydraulic fluids

Frequently Asked Questions

What is the difference between a coupler and a plug?

The plug (male end) attaches to the hose or tool, while the coupler (female end) connects to the air or fluid line. This PM-series plug is the male thread end that screws onto your hose assembly.

What thread type does this plug use?

This plug features a male NPT (National Pipe Thread) thread, which is common in marine and industrial applications. Other thread standards (BSP) may also be available upon request.

What is the maximum working pressure?

The maximum working pressure is 300 PSI (20 bar). Always ensure that your system pressure does not exceed this rating to avoid damage or leakage.

Can this plug be used for hydraulic applications?

Yes, the construction and seal materials are compatible with many hydraulic fluids, but always check oil compatibility and pressure requirements before use in critical hydraulic systems.

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