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DSTI · PRODUCT SERIES

DSTI GPS Series Multi-Passage Unidirectional Rotary Union

Multi-passage rotary union for chemical, DI/tap water and general use — 7,500 PSI, 500 RPM

DSTI GPS Series is the multi-media counterpart of the GP, transferring a broader range of fluids — including chemical, DI/tap water and non-food water-based media — at 7,500 PSI (515 BAR) and 500 RPM. NPT connections are standard; alternative seal materials are available for applications above 105°C or with aggressive chemicals. Used in Turkey for chemical process machinery, rotating wash/clean systems, cooling tower feed units and waterjet applications. IMB Electric provides media-compatibility analysis, seal selection and fast quoting.
01media
Air/Gas, Chemical, Coolant, DI/Tap Water, Oil/Hydraulic, Water/Glycol
02Passages
Multi-passage
03Max. Speed
500 RPM
04Connection
NPT
05Max. Pressure
7,500 PSI [515 BAR]
01

GPS Series Multi-Passage Unidirectional Rotary Union Series Contactor Models

Sorted by current rating (150A → 1000A)

42 MODELS
MODEL↑ currentPassagesPassage SizeDiameterLengthThrough BoreMin. TorqueConnection
GPS-120
20.156" [3.962 mm]2.437" [61.9 mm]3.347" [85.014 mm]None0.5 ft-lbs [0.68 Nm]1/8"-27 NPT []
GPS-121
20.156" [3.962 mm]2.937" [74.6 mm]3.637" [92.38 mm]0.500" [12.7 mm]1.9 ft-lbs [2.58 Nm]1/8"-27 NPT []
GPS-130
30.156" [3.962 mm]2.687" [68.25 mm]4.147" [105.334 mm]None1.5 ft-lbs [2.03 Nm]1/8"-27 NPT []
GPS-131
30.156" [3.962 mm]2.937" [74.6 mm]4.186" [106.325 mm]0.500" [12.7 mm]2.6 ft-lbs [3.53 Nm]1/8"-27 NPT []
GPS-140
40.156" [3.962 mm]2.687" [68.25 mm]4.696" [119.279 mm]None1.9 ft-lbs [2.58 Nm]1/8"-27 NPT []
GPS-141
40.156" [3.962 mm]2.937" [74.6 mm]4.735" [120.269 mm]0.500" [12.7 mm]3.2 ft-lbs [4.34 Nm]1/8"-27 NPT []
GPS-161
60.156" [3.962 mm]3.187" [80.95 mm]6.483" [164.669 mm]0.500" [12.7 mm]6 ft-lbs [8.13 Nm]1/8"-27 NPT []
GPS-180
80.156" [3.962 mm]3.437" [87.3 mm]7.488" [190.196 mm]None10.4 ft-lbs [14.1 Nm]1/8"-27 NPT []
GPS-201-10
100.250" [6.35 mm]3.687" [93.65 mm]10.000" [254.001 mm]0.750" [19.05 mm]14.7 ft-lbs [19.93 Nm]1/4"-18 NPT []
GPS-201-12
120.250" [6.35 mm]4.437" [112.7 mm]13.380" [339.853 mm]0.750" [19.05 mm]19.2 ft-lbs [26.03 Nm]1/4"-18 NPT []
GPS-220
20.250" [6.35 mm]2.937" [74.6 mm]4.374" [111.1 mm]None3.9 ft-lbs [5.29 Nm]1/4"-18 NPT []
GPS-221
20.250" [6.35 mm]3.750" [95.25 mm]4.773" [121.234 mm]0.750" [19.05 mm]5.7 ft-lbs [7.73 Nm]1/4"-18 NPT []
GPS-230
30.250" [6.35 mm]3.187" [80.95 mm]5.290" [134.366 mm]None5.3 ft-lbs [7.19 Nm]1/4"-18 NPT []
GPS-231
30.250" [6.35 mm]3.750" [95.25 mm]5.601" [142.266 mm]0.750" [19.05 mm]7.6 ft-lbs [10.3 Nm]1/4"-18 NPT []
GPS-240
40.250" [6.35 mm]3.187" [80.95 mm]6.118" [155.398 mm]None6.6 ft-lbs [8.95 Nm]1/4"-18 NPT []
GPS-241
40.250" [6.35 mm]3.750" [95.25 mm]6.327" [160.706 mm]0.750" [19.05 mm]9.5 ft-lbs [12.88 Nm]1/4"-18 NPT []
GPS-261
60.250" [6.35 mm]4.000" [101.6 mm]8.175" [207.645 mm]0.750" [19.05 mm]9.8 ft-lbs [13.29 Nm]1/4"-18 NPT []
GPS-280
80.250" [6.35 mm]4.250" [107.95 mm]9.609" [244.069 mm]None15.4 ft-lbs [20.88 Nm]1/4"-18 NPT []
GPS-301-10
100.375" [9.525 mm]3.937" [100 mm]13.620" [345.949 mm]0.750" [19.05 mm]23.3 ft-lbs [31.59 Nm]3/8"-18 NPT []
GPS-301-12
120.375" [9.525 mm]4.937" [125.4 mm]15.370" [390.399 mm]0.750" [19.05 mm]26.2 ft-lbs [35.52 Nm]3/8"-18 NPT []
GPS-320
20.375" [9.525 mm]3.187" [80.95 mm]4.706" [119.533 mm]None4 ft-lbs [5.42 Nm]3/8"-18 NPT []
GPS-321
20.375" [9.525 mm]4.187" [106.35 mm]5.312" [134.925 mm]0.750" [19.05 mm]7.1 ft-lbs [9.63 Nm]3/8"-18 NPT []
GPS-330
30.375" [9.525 mm]3.875" [98.425 mm]6.030" [153.162 mm]None7.6 ft-lbs [10.3 Nm]3/8"-18 NPT []
GPS-331
30.375" [9.525 mm]4.187" [106.35 mm]6.342" [161.087 mm]0.750" [19.05 mm]9.5 ft-lbs [12.88 Nm]3/8"-18 NPT []
GPS-340
40.375" [9.525 mm]3.875" [98.425 mm]6.980" [177.292 mm]None9.5 ft-lbs [12.88 Nm]3/8"-18 NPT []
GPS-341
40.375" [9.525 mm]4.187" [106.35 mm]7.372" [187.249 mm]0.750" [19.05 mm]11.9 ft-lbs [16.13 Nm]3/8"-18 NPT []
GPS-361
60.375" [9.525 mm]4.250" [107.95 mm]8.963" [227.661 mm]0.750" [19.05 mm]13.1 ft-lbs [17.76 Nm]3/8"-18 NPT []
GPS-380
80.375" [9.525 mm]4.937" [125.4 mm]10.000" [254.001 mm]None26.4 ft-lbs [35.79 Nm]3/8"-18 NPT []
GPS-420
20.500" [12.7 mm]3.875" [98.425 mm]5.392" [136.957 mm]None5.7 ft-lbs [7.73 Nm]1/2"-14 NPT []
GPS-421
20.500" [12.7 mm]4.937" [125.4 mm]6.220" [157.988 mm]0.750" [19.05 mm]12.2 ft-lbs [16.54 Nm]1/2"-14 NPT []
GPS-430
30.500" [12.7 mm]4.250" [107.95 mm]7.061" [179.35 mm]None9.5 ft-lbs [12.88 Nm]1/2"-14 NPT []
GPS-431
30.500" [12.7 mm]4.937" [125.4 mm]7.406" [188.113 mm]0.750" [19.05 mm]16.2 ft-lbs [21.96 Nm]1/2"-14 NPT []
GPS-440
40.500" [12.7 mm]4.250" [107.95 mm]8.247" [209.474 mm]None11.9 ft-lbs [16.13 Nm]1/2"-14 NPT []
GPS-441
40.500" [12.7 mm]4.937" [125.4 mm]8.592" [218.237 mm]0.750" [19.05 mm]20.3 ft-lbs [27.52 Nm]1/2"-14 NPT []
GPS-460
60.500" [12.7 mm]4.937" [125.4 mm]10.000" [254.001 mm]None22.3 ft-lbs [30.23 Nm]1/2"-14 NPT []
GPS-480
80.500" [12.7 mm]5.625" [142.875 mm]10.000" [254.001 mm]None32.5 ft-lbs [44.06 Nm]1/2"-14 NPT []
GPS-530
30.750" [19.05 mm]5.250" [133.35 mm]8.280" [210.312 mm]None16.2 ft-lbs [21.96 Nm]3/4"-14 NPT []
GPS-540
40.750" [19.05 mm]5.250" [133.35 mm]9.730" [247.142 mm]None20.3 ft-lbs [27.52 Nm]3/4"-14 NPT []
GPS-561
60.750" [19.05 mm]6.437" [163.5 mm]13.230" [336.043 mm]1.000" [25.4 mm]43.3 ft-lbs [58.71 Nm]3/4"-14 NPT []
GPS-621
21.000" [25.4 mm]7.187" [182.55 mm]8.600" [218.44 mm]1.000" [25.4 mm]24.4 ft-lbs [33.08 Nm]1"-11.5 NPT []
GPS-630
31.000" [25.4 mm]6.937" [176.2 mm]10.570" [268.479 mm]None24.7 ft-lbs [33.49 Nm]1"-11.5 NPT []
GPS-641
41.000" [25.4 mm]7.187" [182.55 mm]12.190" [309.627 mm]1.000" [25.4 mm]40.7 ft-lbs [55.18 Nm]1"-11.5 NPT []

FREQUENTLY ASKED QUESTIONS

About the GPS series

RELATED INSIGHTS · GPS
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RELATED INSIGHTS

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04 ENTRIES
  • SOON

    GPS Series Selection Guide

    A practical approach to selecting the right model family by evaluating voltage, current, coil, mounting and environmental conditions together.
    In progress
  • SOON

    GPS Datasheet Checklist

    The key technical rows and application limits to verify before quotation or engineering approval.
    In progress
  • SOON

    GPS Application Notes

    Notes focused on thermal limits, switching duty, protection coordination and mounting conditions for field reliability.
    In progress
  • SOON

    GPS RFQ Preparation

    How to clarify part number, quantity, application and technical requirements to get accurate pricing and lead time.
    In progress

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