GP Series Rotary Unions

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General Purpose, Multiple Passage Options
The GP Series multiple passage rotary unions are available in 2, 3, 4, 6, 8, 10 and 12 passage models. These general-purpose rotary unions feature specialized sealing technology suitable for vacuum and bidirectional pressures up to 7,500 PSI [515 BAR], and a shaft configuration that consists of individual female tapped connections with an O-ring gland for optional face/flush mounting.

GP Series rotary unions come standard with a carbon steel / black oxide construction suitable for hydraulic and pneumatic service. Stainless steel GP models are available to prevent corrosion for use with applications requiring water or corrosive media transfer.

10 and 12 passage GP Series models come standard with threaded connections on the sides of the shaft and housing. Models are also available with optional shaft O-ring glands for face/flush mounting (which must be specified when ordering).

Need to combine fluid with electrical power, signal and/or data transfer? No problem. The GP Series rotary unions are designed to integrate directly with our standard electrical slip rings.
Product Images
Operating Information
Description Specification
Max. Pressure¹ 7500 PSI (515 BAR)
Max. Vacuum¹ 30 HG
Max. Rotational Speed¹ up to 500 RPM
Temperature Range¹ 0° F to 220° F (-18° C to 105° C)²
Options
Description Specification
Connection Sizes 1/8", 1/4", 3/8", 1/2", 3/4", 1". Other sizes available upon request.
Connection Type NPT & BSPP threads standard. SAE, NPTF, and other thread options are available on a custom basis.
Plating and Coatings Black oxide plating is standard. Anodized, E-Nickel, Chrome, Nitride, Ceramic and other specialty platings are available as custom options.
Materials Carbon steel is the standard material for the GP Series, Stainless Steel is the standard material for the GPS Series. Aluminum, Brass, and other materials are available on a custom basis.
Mounting Options The GP series unions have a unique shaft configuration that consists of individual female tapped passages with an o-ring gland around each for optional flange mounting. There are also tapped holes on the end of the housing for mounting the assembly.
Slip Ring Options The GP Series unions are available with a number of electrical slip ring options for power, signal and data transfer. The assembly is available with an aluminum cover to protect the slip ring during use in demanding environments.
Media Types Air/Gas, Chemical (GPS models only), DI / Tap Water (GPS models only), Oil, Water/Glycol (GPS models only)
O-ring Face Seal Options O-ring face seal options available for 10 & 12 passage GP Series models. Please add "-OF" to the part number. Example: GP-201-10-OF
   

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