Gas rotary union GPS 8

for oilfor airfor chemicals

Description
The GPS Series 8-passage rotary unions provide eight independent flow passages with specialized sealing technology for vacuum and bidirectional pressures. They permit simultaneous transfer of different media and are available in stainless steel for corrosive or water media and carbon steel for non-corrosive applications. Standard GPS models feature NPT threaded connections and a shaft configuration allowing mounting via threaded passages or an O-ring face seal gland for flush installation. The series is designed for integration with compatible electrical slip rings to combine fluid transfer with electrical power, signal or data transmission.

Configurations (selection)

• GPS-180 (GPSM-180) — Connection: 1/8"-27 NPT; Passage Size: 0.156" [3.962 mm]; Diameter: 3.437" [87.3 mm]; Length: 7.488" [190.196 mm]; Through Bore: None; Min. Torque: 10.4 ft-lbs [14.1 Nm]
• GPS-280 (GPSM-280) — Connection: 1/4"-18 NPT; Passage Size: 0.250" [6.35 mm]; Diameter: 4.250" [107.95 mm]; Length: 9.609" [244.069 mm]; Through Bore: None; Min. Torque: 15.4 ft-lbs [20.88 Nm]
• GPS-380 (GPSM-380) — Connection: 3/8"-18 NPT; Passage Size: 0.375" [9.525 mm]; Diameter: 4.937" [125.4 mm]; Length: 10.000" [254.001 mm]; Through Bore: None; Min. Torque: 26.4 ft-lbs [35.79 Nm]
• GPS-480 (GPSM-480) — Connection: 1/2"-14 NPT; Passage Size: 0.500" [12.7 mm]; Diameter: 5.625" [142.875 mm]; Length: 10.000" [254.001 mm]; Through Bore: None; Min. Torque: 32.5 ft-lbs [44.06 Nm]

Max. Pressure — Series

• 200 PSI [15 BAR] — SPS, LT, SE, GP, GPS, SCS, HVH, HPS
• 600 PSI [40 BAR] — SPS, LT, SE, GP, GPS, HVH, HPS
• 5,000 PSI [345 BAR] — SE, GP, GPS, HVH, HPS
• 7,500 PSI [515 BAR] — SE, GP, GPS, HPS
• 20,000 PSI [1,375 BAR] — HPS
• Other — Custom

Max. Speed — Series

• 20 RPM — SPS, LT, SE, GP, GPS, SCS, HVH, HPS
• 50 RPM — SPS, LT, SE, GP, GPS, SCS, HPS
• 75 RPM — SPS, LT, SE, GP, GPS, SCS
• 300 RPM — SPS, LT, SE, GP, GPS, SCS
• 500 RPM — SPS, LT, GP, GPS, SCS
• Other — Custom

Connection Types — Series

• ASME-BPE — SCS
• BSPP — SE, GP
• BSPT — LT
• NPT — SPS, LT, GP, GPS
• SAE-ORB — SE, HVH
• Medium Pressure — HPS
• Other — Custom

Suitable Media (selection)

• Air / Gas
• Chemical
• Coolant
• DI / Tap Water
• Oil / Hydraulic
• Water / Glycol

Notes
Some chemical or water-based media may require alternative sealing materials. Applications above 220° F (105° C) require alternative seal materials. Operational life depends on rotational speed and duty cycle; high-speed continuous operation and elevated temperatures may require alternative seals or special consideration.

Technical specifications

• Series / Model: GPS Series
• Passages: 8 independent flow passages (capable of transferring different media simultaneously)
• Maximum Pressure (typical GPS listing): 7,500 PSI [515 BAR]
• Maximum Speed (typical GPS listing): 500 RPM
• Connection Type (GPS standard): NPT threaded connections
• Materials: Housing — Stainless Steel; Shaft — Stainless Steel (TDC). Carbon steel models available for non-corrosive media
• Maximum Vacuum: 30 in Hg
• Temperature Range: 0° F to 220° F [-18° C to 105° C]
• Suitable Media: Air/Gas, Chemical, Coolant, DI/Tap Water, Oil/Hydraulic, Water/Glycol
• Sealing: Specialized sealing technology for vacuum and bidirectional pressures; some media/temperature combinations require alternative seal materials
• Mounting options: Threaded passage mounting or O-ring face seal gland for flush mounting
• Integration: Designed to integrate with electrical slip rings for combined fluid and electrical transfer
• Representative part examples: GPS-180, GPS-280, GPS-380, GPS-480