Description

Description

Midland 1/2" Domestic Red Brass Cored Plug

Midland 1/2" Domestic Red Brass Cored Plugs provide a dependable threaded closure for sealing compatible female NPT pipe openings in residential, commercial, HVAC, and light industrial piping systems.

Manufactured from corrosion-resistant red brass, this domestic fitting features a 1/2" male NPT connection, cored body construction, and square wrenching head for convenient installation and removal.

Product Highlights

1/2" nominal pipe size
Domestic red brass construction
Male NPT threaded connection
Cored body design for reduced material weight
Square head for positive wrench engagement
Designed to close compatible female-threaded pipe openings
Precision-machined NPT threads
Excellent corrosion and dezincification resistance
Suitable for compatible water, air, oil, and other fluid applications
Manufactured by Midland Industries

Technical Specifications

Product Type	Cored Square Head Pipe Plug
Brand	Midland
Nominal Pipe Size	1/2"
Material	Red Brass
Origin	Domestic
Connection Type	Male NPT
Thread Type	NPT
Head Style	Square Head
Body Style	Cored
Primary Function	Closing and Sealing Compatible Female-Threaded Pipe Openings
Typical Applications	Plumbing, HVAC, Commercial, and Light Industrial Systems

Plug Configuration

1/2" Male NPT

The plug features a precision-machined 1/2" male NPT connection for installation into a compatible female-threaded pipe, fitting, valve, or equipment port.

Cored Body

The cored construction reduces material weight while maintaining a durable threaded closure for compatible piping applications.

Square Head

The square head provides positive wrench engagement for controlled tightening and convenient removal during maintenance or system modifications.

Construction Details

Midland 1/2" Domestic Red Brass Cored Plugs are manufactured from high-quality red brass to provide dependable strength, corrosion resistance, and long service life.

The cored body provides a lighter configuration than a solid-body plug while maintaining a practical threaded closure for compatible piping systems.

Precision-machined male NPT threads help provide consistent engagement with compatible female-threaded components when installed using accepted piping practices.

Why Choose a Red Brass Cored Plug?

Secure Pipe Closure

Closes unused female-threaded openings
Compact one-piece fitting
Useful for pipe, fittings, valves, and equipment ports
Suitable for maintenance and repair work
Easy to install and remove

Red Brass Construction

Excellent corrosion resistance
Good resistance to dezincification
Dependable mechanical performance
Suitable for compatible fluid systems
Designed for long-term service

Cored vs. Solid Plug Construction

Cored Design

A cored plug uses less material internally, helping reduce fitting weight while still providing a threaded closure for appropriate applications.

Square Wrenching Head

The external square head provides a dedicated wrenching surface so installation tools do not need to grip the threaded portion of the plug.

NPT Threaded Connection

Male NPT Connection

The 1/2" male NPT connection installs into a compatible 1/2" female NPT opening.

Thread Sealing

Use PTFE tape or an approved pipe-thread sealant on the male NPT threads according to the system media, pressure, temperature, and installation requirements.

Typical Applications

Plumbing & HVAC

Residential plumbing systems
Commercial plumbing
HVAC piping
Valve and fitting ports
Maintenance and repair

Light Industrial

Compatible water systems
Air piping
Oil piping
Equipment connections
General fluid handling applications

Size & Compatibility

This listing is for a 1/2" male NPT domestic red brass cored plug.

Verify that the mating opening uses a compatible 1/2" female NPT thread and confirm material, pressure, temperature, and media compatibility before installation.

Ask Willy: Need Help With This 1/2" Red Brass Cored Plug?

Our pipe and fitting specialists can help review your female NPT connection, piping material, system media, pressure, temperature, and application requirements before you order.

Email the GetPipe.com Team Visit Quick Support

Frequently Asked Questions

What size is this plug?

This listing is for a 1/2" nominal pipe size plug.

What material is the plug made from?

It is manufactured from red brass.

Is this a domestic fitting?

Yes. The supplied product information identifies this fitting as domestic.

What type of connection does it use?

It uses a 1/2" male NPT threaded connection.

What does cored mean?

Cored construction means material is removed from portions of the internal body to reduce weight compared with a fully solid plug.

What is the square head used for?

The square head provides flat wrenching surfaces for tightening and removing the plug.

What does this plug install into?

It installs into a compatible 1/2" female NPT pipe, fitting, valve, manifold, or equipment opening.

Should thread sealant be used?

Use PTFE tape or an approved pipe-thread sealant on the male NPT threads according to the application requirements.

What media can this plug be used with?

The supplied product information identifies water, air, oil, and other compatible fluids.

What should I verify before installation?

Confirm the 1/2" female NPT mating connection, system pressure, temperature, media compatibility, and application requirements.

Important Ordering & Installation Notes

This listing is for the Midland 1/2" Domestic Red Brass Cored Plug.
Nominal pipe size is 1/2".
The plug uses a male NPT threaded connection.
Verify the mating opening uses compatible 1/2" female NPT threads.
The fitting features cored construction and a square wrenching head.
Use the square head for wrench engagement during installation and removal.
Avoid gripping or damaging the threaded portion with installation tools.
Use PTFE tape or an appropriate thread sealant on the NPT connection.
Verify red brass is compatible with the intended system media.
Confirm system pressure and temperature requirements before installation.
Inspect the threads for damage or contamination before assembly.
Avoid excessive tightening that could damage the plug or mating threads.
Check the completed connection for leakage when used in a fluid-carrying system.
Pipe, fittings, valves, and additional components are sold separately unless otherwise specified.
Install according to applicable piping requirements and Midland manufacturer recommendations.