Reliable Smith-Blair 525 Compression Couplings

18¹⁴

Blair Supply Corp. brings you a swift and easy, yet reliable and effective way to join plain end pipes of the same diameter together. Introducing Smith-Blair 525 1 1/2” and 1 1/4” Compression Coupling - the perfect tool to create strong joints on PVC and steel pipes, as well as copper ones with the addition of Smith-Blair adapter gaskets.

Made of ductile or malleable iron, the 525 features increased durability and strength, while galvanized finish ensures excellent corrosion resistance. In addition, the Nitrile (Buna N) gasket provides a tight seal and makes the connection resistant to a wide array of harsh chemicals, making the 525 an ideal choice for most water, wastewater, and industrial applications.

Smith-Blair 525 Compression Coupling is designed for the utmost ease of installation. Stab fit eliminates the need for threading or additional fastening, wrench flats make securing the coupling in place exceedingly simple, and threaded ends easily seal to the pipe with only a few turns, creating a secure and lasting joint connection.

Smith-Blair 525 Compression Coupling SPECIFICATIONS:

Deflection: 2º per end
Temperature Range: -20°F to 180°F
Working Pressure: Up to 150 PSI
Available Sizes (in inches): 1/2, 3/4 ,1, 1 1/4, 1 1/2, 2

NOTE: 525 Compression Coupling is not recommended for natural gas lines.

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Frequently Asked Questions

What is a compression type coupling?

A compression-type coupling, or simply compression coupling, is a mechanical connector used to join two pipes together. In the case of Smith-Blair 525, it works by compressing the Nitrile gasket around the pipe using tightening nuts, which creates a strong and leak-proof connection. Due to its ease of installation (i.e. no need for soldering or welding) and lasting durability, this type of fitting is widely used in different applications, such as plumbing, hydraulic, water main, wastewater, and industrial settings (among others).

Are compression couplings reliable?

Despite their (seemingly) simple build, Smith-Blair 525 1 1/2” and 1/4” compression couplings are extremely reliable for creating waterproof seals in various applications, provided they’re properly installed and maintained.

How long do compression couplings last?

Ductile or malleable iron compression couplings with galvanized finish (such as Smith-Blair 525) have a nominal lifespan of 20 to 50 years. Whether that number leans toward the lower or higher value depends on a number of factors, including the quality of installation, regularity of maintenance, and environmental conditions.

How much PSI can a compression fitting hold?

The working pressure range varies based on the specific design and application of the fitting. In the case of the Smith-Blair 525 coupling, it can easily withstand the pressure of up to 150 PSI under normal operating conditions.

Where to find the Smith-Blair 525 1 1/2” and 1 1/4” Compression Coupling for sale near me in New York & nationwide?

At Blair Supply Corp., you can find a wide range of top-quality water and wastewater materials from some of the nation’s leading manufacturers, including the ever-reliable Smith-Blair 525 Compression Couplings.

Whether you’re in the market for couplings, pipes, tubing, valves, meter boxes, or even fire hydrants, our 60 years of experience and track record of excellence ensure that you’ll get the exact material you need for your project - anywhere in the USA. Connect with us today!

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