Water rotary union GPS 2

for oilfor chemicalsfor steam

Description
The GPS Series 2-passage rotary unions provide two independent flow passages for simultaneous transfer of different media. They use specialized sealing technology for vacuum and bidirectional pressure applications and are available with stainless steel housings for corrosive media or carbon steel options for non-corrosive service. Standard GPS 2-passage models feature NPT threaded connections and a shaft configuration that supports installation via threaded passages or O-ring face seal glands for flush mounting.

Max. Pressure — Series (excerpt)
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 (excerpt)
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 Type — Series (excerpt)
ASME-BPE | SCS
BSPP | SE, GP
BSPT | LT
NPT | SPS, LT, GP, GPS
SAE-ORB | SE, HVH
Medium Pressure | HPS
Other | Custom

Suitable Media (excerpt)

• Air / Gas
• Chemical
• Coolant
• DI / Tap Water
• Oil / Hydraulic
• Water / Glycol
• Food-grade (via SCS series)
• Steam — custom

Notes / Warnings
* Some chemical or water-based applications may require alternative seal materials. Temperatures above 220° F (105° C) require alternative seals. Operational life depends on rotational speed and duty cycle. High-speed continuous duty or water at temperatures above 212° F (100° C) may require special seals and design consideration.

Technical Specifications

• Series: GPS Series
• Product type: 2-Passage rotary union (two independent flow passages)
• Maximum pressure: up to 7,500 PSI [515 BAR] (series capability; specific models vary)
• Maximum speed: up to 500 RPM (series capability; specific models vary)
• Maximum vacuum: 30 HG
• Temperature range: 0° F to 220° F [-18° C to 105° C] (higher temps require alternative seals)
• Connection type (standard on GPS 2-passage models): NPT threaded connections
• Housing material: Stainless Steel (carbon steel options available for non-corrosive media)
• Shaft material / finish: Stainless Steel (TDC)
• Suitable media: Air/Gas, Chemical, Coolant, DI/Tap Water, Oil/Hydraulic, Water/Glycol (media compatibility may require alternative seals)
• Sealing: Specialized sealing technology for vacuum and bidirectional pressures
• Installation: Shaft configuration allows mounting via threaded passages or O-ring face seal glands for flush mounting
• Integration: Designed for direct integration with electrical slip rings for combined fluid and electrical transfer
• Available part references (examples): GPS-120, GPS-121, GPS-220, GPS-221, GPS-320, GPS-321, GPS-420, GPS-421, GPS-621
• Available downloads: Series catalog and installation/mounting documentation (PDFs)