IMPA: 734051

Brass Flareless Bulkhead Unions (IMPA 734051) for Shipboard Piping

These brass flareless bulkhead unions are precision-engineered for marine piping systems, providing a secure and leak-proof method of connecting tubes through bulkheads and panels. Constructed from high-quality brass, they offer excellent corrosion resistance in harsh saltwater environments, making them a reliable choice for shipboard plumbing.

Designed with a flareless compression mechanism, these unions grip the tube securely without requiring flaring, allowing rapid installation with standard hand tools. They are suitable for a wide range of fluids including freshwater, seawater, fuel, lubricating oil, and hydraulic systems, and are available in common sizes to match standard marine tubing.

Ideal for new builds and retrofits on commercial vessels, workboats, and leisure craft, these bulkhead unions meet the demanding requirements of marine engineering and ensure long-lasting, maintenance-free connections.

Key Features

Technical Specifications

MaterialBrass (marine-grade)
Connection TypeFlareless (compression-type)
Bulkhead DesignMale or female thread options (specify upon order)
Pressure RatingUp to 5,000 psi (dependent on size and tube wall thickness)
Temperature Range-20°C to 150°C (-4°F to 302°F)
Available Sizes1/4" to 1" OD tube (6mm to 25mm metric)
StandardsCompliant with marine industry requirements

Frequently Asked Questions

What are brass flareless bulkhead unions used for?

These unions are used to connect tubes or pipes through bulkheads, decks, or panels in marine piping systems, providing a secure, leak-proof joint. They are commonly found in fuel, water, and oil lines on ships and boats.

Do these unions require special installation tools?

No, the flareless design uses a compression ring that bites into the tube when the nut is tightened. Standard wrenches are sufficient, and no flaring or soldering is required.

Can these bulkhead unions handle high-pressure applications?

Yes, brass flareless unions are manufactured to withstand high working pressures, making them suitable for hydraulic systems and high-pressure fuel lines in marine environments.

What sizes are available?

We offer these unions in a range of sizes to fit standard marine tubing, typically from 1/4 inch to 1 inch outer diameter, as well as metric sizes. Please specify your tubing size when ordering.

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