Rotary Unions

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What is a ROTARY union?

Learn about the technology behind rotary unions
Primary Components
Media Types
Operating Parameters
Application Examples

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Standard Rotary Unions

Fast, flexible solutions that easily integrate into your equipment.
Standard Solutions
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Custom Rotary Unions

Engineered to meet your exact application requirements
Custom Solutions
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Available Modifications

We can quickly modify our standard rotary unions to fit your needs.
Housing, Shaft & Seal Material Options
Mounting Configuration Options
Housing & Shaft Dimensional Changes
Electrical + Fluid Integration

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What is a Rotary Union?

Learn about the technology behind rotary unions
Primary Components
Media Types
Operating Parameters
Application Examples

Learn More

Overview

Overview DSTI rotary unions (rotary joints) reliably seal and transfer fluid such as water, air, hydraulic oil, coolant, steam, and other media types from stationary sources to rotating parts. As a leading rotary union manufacturer, our products are used across a wide range of industries including factory automation, heavy equipment, machine tool, packaging, medical, oil and gas, defense, and aerospace. We offer standard product lines grouped by function and feature exclusive rotary union seals selected for compatibility to each application’s operating pressure, temperature, speed, media, and required service life. If our inventory of standard products isn’t a fit for your project, we can provide a custom-tailored rotary union solution designed to meet your exact application’s requirements for operating performance, cost, and delivery - in fact, it's what we do best! Our fluid sealing experts will assist with a solution that meets your needs, which may include making modifications to a standard product, providing improvement recommendations to an existing design, or developing a new prototype to your exact project’s specifications.

Rotary Union FAQs

1What is a rotary union?
A rotary union (or swivel joint) is a device used to transfer fluid under pressure or vacuum from a stationary inlet to a rotating outlet, preserving and isolating the fluid connection. Learn more about What is a Rotary Union?
2What is a rotary union?
A rotary union (or swivel joint) is a device used to transfer fluid under pressure or vacuum from a stationary inlet to a rotating outlet, preserving and isolating the fluid connection. Learn more about What is a Rotary Union?
3What is a rotary union?
A rotary union (or swivel joint) is a device used to transfer fluid under pressure or vacuum from a stationary inlet to a rotating outlet, preserving and isolating the fluid connection. Learn more about What is a Rotary Union?
4What is a rotary union?
A rotary union (or swivel joint) is a device used to transfer fluid under pressure or vacuum from a stationary inlet to a rotating outlet, preserving and isolating the fluid connection. Learn more about What is a Rotary Union?
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