Best-In-Class Manufacturer of Speciality High Pressure O-Ring Pipe Unions

Proudly Made in the USA and Distributed Globally

Get In Touch

HART Sure-Seal Technology – Instant Sealing

Work WithHART

About Us
Leading Domestic Supplier of Sure Seal O-Ring Unions
Rapid Turnaround of Difficult-to-Source Pipe and Tube Unions
Fully Support the Increased Demand for High Pressure Pipe Union Applications

Latest updates:

Read All >

Did You Know - HART offers high-temp steam unions!

Did you know… ….that HART Industrial Unions now offers high-pressure / high-temperature resistant pipe unions that can withstand 1400°F for hydrocarbon and superheated steam service? Unions containing spiral wound gaskets can be supplied to meet national standards such as MSS-SP-83 and ASME B16.20. The pipe union design is similar in principle to flange joints but […]

Read More
IMTS Chicago

HART attends IMTS - Chicago

The International Manufacturing Technology Show is the largest and longest-running industry trade show in the Western Hemisphere. IMTS is where the creators, the builders, the sellers, and the drivers of manufacturing technology come to connect and be inspired. Industry professionals from around the globe visit IMTS to discover the latest innovations in digital and traditional […]

Read More

HART In-Plant / On-Site Training

At HART we offer in person hands-on training and customer product training workshops! Our one and a half hour, hands-on training workshop delivered by a HART Product Specialist,

Read More