Fluid Rotary Unions

Fluid Rotary Unions Overview

Moog's fluid rotary unions are currently used around the world to ensure reliable transmission of life support, process, power and control fluids. Currently, fluid rotary unions rated for pressures up to 15,000 PSI (1000 bar) are available. Seals are selected based on chemical compatibility, design pressure, design temperature, required service life and acceptable leakage rate. Leak collection can be supplied when required for environmental or personnel safety. Fluid rotary unions can be combined with our electrical slip rings and fiber optic rotary joints.

Options

Customized mounting and drive configurations
Customized materials to satisfy weight, chemical compatibility and other requirements
Customized port configurations
Hard coating, standard and high pressure FRU, cam be selected for improved abrasion resistance and extended seal life
Leakage detection and collection ports (drain to tank)
Optional hollow bore

Products

Model	Sample Applications	Passes Qty/Size	Pressure	Speed	Mounting Flange	Hollow Bore
70	Industrial, Military, Marine, Scientific	≤ 12 1/4 - 1 inch	1000 psi 68 bar	10 rpm cont 30 rpm int	Standard	N/A
134	Seismic	1 ≤ 1 inch	≤ 4000 psi ≤ 245 bar	≤ 5	N/A	N/A
136	Scientific, Military, Cooling Systems	≤ 5 ≤ 1/2 inch	≤ 5000 psi ≤ 345 bar	≤ 1000	Optional	Optional
255	Industrial, Military	Multiple 1/4 - 1 1/2 inch	≤ 5000 psi ≤ 345 bar	≤ 50	Optional	Optional
248	Scientific, Industrial	Multiple ≤ 1/4 inch	≤ 1000 psi ≤ 70 bar	≤ 10	Optional	Optional
271	Industrial, Military, Scientific	≤ 5 ≤ 3/4 inch	≤ 1000 psi ≤ 70 bar	≤ 10	Optional	Optional
278	Military Cooling Systems	2 ≤ 1/2 inch	≤ 150 psi ≤ 10 bar	≤ 150	Optional	Standard
284	FPSO & SPM, Hydraulic Controls	Multiple 1/4 - 2 1/4 inch	≤ 1500 psi ≤ 1000 bar	≤ 5	Standard	Standard
290	FPSO & SPM Fire Suppression	≤ 2 ≤ 3 inch	≤ 200 psi ≤ 15 bar	≤ 5	Standard	Standard
The fluid rotary unions listed below can be integrated with AC4598, AC6200 and AC6815 slip rings
301	Industrial	1x 1/2" BSPP	145 psi 10 bar	250 rpm	Standard	N/A
306	Industrial	1x 1/5" BSPP	145 psi 10 bar	100 rpm	Optional	1x1/2"
307	Industrial	2x 1/8" BSPT	145 psi 10 bar	200 rpm	Standard	2x11/32"

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Typical Applications

Marine and life support systems such as saturation diving
Training centrifuges for pilots and astronauts
Industrial indexing tables
Chemical injection systems
FPSO hydraulic power and control systems
Semiconductor clean room robotics

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