The Flanged Rotary Union is a premium-grade industrial component designed for seamless fluid transfer in systems requiring robust, leak-free connections. Engineered with flanged interfaces, this rotary joint offers enhanced stability and easy installation in high-pressure, high-temperature, or heavy-duty applications. Unlike threaded unions, flanged designs distribute stress evenly, making them ideal for industries where vibration resistance and rapid maintenance are critical—such as oil & gas, chemical processing, and manufacturing.
ANSI/ASME B16.5 flanges (150#–2500#), DIN EN 1092-1, or custom flanges for global compatibility.
Stainless steel (304/316), carbon steel, or alloy steel for corrosion resistance and high-temperature durability.
Up to 4000 PSI (27.6 MPa) with custom designs for pressures exceeding 6000 PSI.
-40°C to 350°C (-40°F to 662°F), suitable for steam, hot oil, hydraulic fluids, and corrosive media.
Smooth operation at up to 2000 RPM (high-speed variants available for specialized machinery).
PTFE, graphite, or metal-to-metal seals ensure zero leakage under extreme conditions, reducing downtime.
Flanged rotary unions are available in configurations ranging from single to multi-passage designs, including 5-pass and 8-pass models. Multi-passage flange mounts allow simultaneous transfer of multiple fluids or gases through separate channels, improving efficiency in complex systems such as printing presses, steel mills, and assembly lines.
These rotary unions are typically constructed from durable materials like stainless steel, carbon steel with anti-corrosion coatings, brass, or bronze, depending on the application requirements. Stainless steel models are preferred for high-temperature and corrosive environments, such as chemical processing and food industries.
High-quality sealing technologies, including carbon fiber impregnated Teflon seals, fluorocarbon O-rings, bellows-type seals, and mechanical seals, ensure leak-proof operation under high pressure and temperature conditions. Dual radial ball bearings or deep groove ball bearings support the rotating shaft, reducing side loading and wear, thus extending service life.
The flange mounting system provides a stable and secure connection between the rotary union and the rotating equipment. Flange rotary unions often feature standard flange sizes and thread types such as NPT, BSP, or custom options to fit specific machinery. The flanged design simplifies alignment and installation, especially in applications with heavy or high-speed rotating shafts.
The Flanged Rotary Union excels in demanding industrial environments, including:
Transfers heated crude oil and chemicals in distillation columns with flanged piping systems.
Connects steam turbines to rotating generators, managing high-pressure steam flow efficiently.
Integrates with shipboard cranes and winches, enduring saltwater corrosion and heavy vibration.
Transfers hot water and sanitizers in bottling lines, meeting USDA-compliant hygienic standards.
Maintains precise temperature control in flanged heating rolls for film and sheet production.
Flanged connections distribute load evenly, reducing the risk of misalignment in vibrating systems.
Bolted flanges allow rapid disassembly for seal replacement, minimizing downtime in industrial settings.
Standardized flange designs (ANSI, DIN) ensure easy integration into international projects.
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