Deublin Co. Datasheets for Rotary Unions

Rotating unions allow fluids to be transferred between stationary and rotating components or equipment.
Rotary Unions: Learn more

Product Name	Notes
Four Passage 1/2" NPT Rotating Union -- 1479-400 Four Passage 3/8" NPT Rotating Union -- 1379-460 Four Passage G3/8" BSP Rotating Union -- 1379-160	4-passage design Self-supported rotating union Flanged rotor Drain passage prevents inter passage leakage Special seals Hardened sealing surface Brass housing Stainless steel rotor Widely spaced ball bearings to withstand side...
Single Passage 1 1/2" NPT Rotating Union -- 555-000-001 Single Passage 1 1/4" NPT Rotating Union -- 525-000-026 Single Passage 2" NPT Rotating Union -- 655-500-116 Single Passage 2" NPT Rotating Union -- 655-500-117 Single Passage 2" NPT Rotating Union -- 655-500-125 Single Passage 2" NPT Rotating Union -- 655-502-116 Single Passage 2" NPT Rotating Union -- 655-502-124	Self-supported rotating union Radial housing connection Balanced mechanical seal 3 vent holes Forged brass housing Stainless steel rotor Special options: threaded vent holes, low torque design Seal Combinations: Standard: Carbon...
Single Passage 3/4" NPT Rotating Union -- 2420-001-125	design In-the-shaft mounted Self-supported rotating union Flanged housing or mounted with retaining plate Balanced mechanical seal Brass housing and elbow Stainless steel rotor and supply pipe Engineered sleeve bearing Full-media...
Single Passage 3/8” NPT Rotating Union -- 927-150-151	design Self-supported rotating union Axial housing connection Balanced mechanical seal Slinger and vents protect bearings Low torque design Stainless steel housing and rotor Seal combination: Tungsten Carbide/Tungsten Carbide
Single Passage 1/2” NPT Rotating Union -- AP12-011-214 Single Passage G3/8” BSP Rotating Union -- AP10-010-210	design Self-supported rotating union Double row ball bearing; lubricated for life Vent holes Steel housing nickel-plated Stainless steel end cap and rotor All parts in media contact are stainless steel...
Single Passage 1" NPT Rotating Union -- 355-021-002 Single Passage 3/4" NPT Rotating Union -- 250-094-002	design Self-supported rotating union Radial housing connection Balanced mechanical seal Felt oiler in seal cavity for air service Oiler for relubrication (3 - 5 drops/month) Low torque Aluminum housing Stainless...
Single Passage 3" NPT Rotating Union -- 857-000-101	design Self-supported rotating union Radial housing connection Balanced mechanical seal Full-media flow Easy and quick replacement of sealing components (rotor seal, floating seal) Vented housing Cast iron housing - standard...
Single Passage 1 1/2" NPT Rotating Union -- 557-000-001 Single Passage 1 1/4" NPT Rotating Union -- 527-000-026 Single Passage 1" NPT Rotating Union -- 357-000-222 Single Passage 1" NPT Rotating Union -- 357-000-223 Single Passage 1" NPT Rotating Union -- 357-050-002 Single Passage 2" NPT Rotating Union -- 657-000-116 Single Passage 2" NPT Rotating Union -- 657-000-117 Single Passage 2" NPT Rotating Union -- 657-000-124 Single Passage 2" NPT Rotating Union -- 657-000-125 Single Passage 2" NPT Rotating Union -- 657-050-116 Single Passage 2" NPT Rotating Union -- 657-050-117 Single Passage 2" NPT Rotating Union -- 657-050-124 Single Passage 3/4" NPT Rotating Union -- 257-050-020 Single Passage 3/8" NPT Rotating Union -- 57-000-001 Single Passage 3/8" NPT Rotating Union -- 57-050-094	design Self-supported rotating union Radial housing connection Balanced mechanical seal Keyed rotor seal Easy and quick replacement of sealing components (rotor seal, floating seal) Ball bearings lubricated for life For...
Single Passage 2 1/2" NPT Rotating Union -- 6250-001-115 Single Passage 2" NPT Rotating Union -- 6200-001-137 Single Passage 4" NPT Rotating Union -- 6400-030-330 Two Passage 1 1/2" NPT Rotating Union -- 6300-001-103	design Self-supported rotating union Radial housing connection Balanced mechanical seal Steel-banded floating seal Easy and quick replacement of sealing components Full-media flow Vent slots Cast iron housing Steel rotor flanged/threaded...
Single Passage 1/2" NPT Rotating Union -- 21-001-122 Single Passage ¼” NPT Rotating Union -- 17-025-012	design Self-supported rotating union Steel rotor nickel-plated Special bearing Aluminum housing
Two Passage 1/4" 1/2" NPT Rotating Union -- 2117-001-103	Duo flow (Tandem) design Self-supported rotating union No leakage on the duo flow design Steel rotor nickel-plated Special bearing Aluminum housing
Two Passage 1/4" NPT Rotating Union -- 1690-000-102	Duo flow design Self-supported rotating union Composite bearing Vent holes between passages Special seals Hardened sealing surface Aluminum housing Steel rotor Optional: Tandem model as triple-passage design
Two Passage Rotating Union -- C15D-004-02-3A	Duo flow design Self-supported rotating union Convex seal ring better suited to handle mechanical and thermal shock External mechanism to adjust siphon pipe through end cap Nickel-plated front and rear...
Two Passage 1/2" NPT Rotating Union -- 1579-000 Two Passage 1/2" NPT Rotating Union -- 1579-041	Duo flow design Self-supported rotating union Flanged rotor Balanced mechanical seals Full-media flow Aluminum housing Cast iron rotor Seal combinations: Standard Seal: Carbon Graphite/Ceramic E.L.S.: Tungsten Carbide/Ceramic
Two Passage 1/2" NPT Rotating Union -- 1590-000	Duo flow design Self-supported rotating union Flanged rotor Balanced mechanical seals Full-media flow Aluminum housing Cast iron rotor Oil cup (3-5 drops/month for 1590) Seal combination: Carbon Graphite/Ceramic
Two Passage 3/8" NPT Rotating Union -- 1500-000 Two Passage 3/8" NPT Rotating Union -- 1500-250	Duo flow design Self-supported rotating union Flanged rotor Radial housing connections Low torque Balanced mechanical seals Full-media flow Aluminum housing Cast iron rotor Oil cup (3-5 drops/month) Seal combination: Carbon...
Two Passage 2" NPT Rotating Union -- 857-001-101 Two Passage 2" NPT Rotating Union -- 857-002-118	Duo flow design Self-supported rotating union Radial housing connection Balanced mechanical seal Full-media flow Easy and quick replacement of sealing components (rotor seal, floating seal) Vented housing Cast iron housing...
Single Passage 3" NPT Rotating Union -- 6300-002-103 Two Passage 1 1/2" NPT Rotating Union -- 6250-002-115 Two Passage 1" NPT Rotating Union -- 6200-002-137 Two Passage 1" NPT Rotating Union -- 6200-013-137 Two Passage 1" NPT Rotating Union -- 6200-020-137 Two Passage 1" NPT Rotating Union -- 6200-030-123 Two Passage 2" NPT Rotating Union -- 6300-030-103 Two Passage 2" NPT Rotating Union -- 6300-030-157 Two Passage 2" NPT Rotating Union -- 6300-030-161	Duo flow design Self-supported rotating union Radial housing connection Balanced mechanical seal Steel-banded floating seal Easy and quick replacement of sealing components Full-media flow Vent slots Cast iron housing Steel...
Union, Low-Speed Tandem, 1-1/2" NPT RH, 3/4" NPT -- 1890-520 Union, Low-Speed, 1-1/2" NPT RH, 3/4" NPT -- 1890-500 Union, Low-Speed, G 1-1/2" RH, 3/4" NPT -- 1890-570	Duoflow design for low-speed air, hydraulic, and brake fluid applications Self-supported rotating union Composite bearing Vent holes between passages Special seals Hardened sealing surface Aluminum housing and steel rotor Triple-passage...
Single Passage 1/8” NPT Rotating Union -- 1005-020-019 Single Passage ¼” NPT Rotating Union -- 1102-070-104	Mono flow design Self-supported rotating union Radial housing connection Balanced mechanical seal Felt oiler in seal cavity for air service Oiler for relubrication (3 - 5 drops/month) Low torque Weight-optimized...
Single Passage 1/2” NPT Rotating Union -- 157-050-021	Mono flow design Self-supported rotating union Radial housing connection Balanced mechanical seal Keyed rotor seal Easy and quick replacement of sealing components (rotor seal, floating seal) Ball bearings lubricated for...
Single Passage 3/8” NPT Rotating Union -- 1117-002-110 Single Passage G3/8” Rotating Union -- 1117-058-116	Single passage for coolant or MQL Closed seals for transfer line and similar applications Full-flow design has no obstructions to trap chips or debris Balanced mechanical seals made from silicon...
Single Passage 1/4” NPT Rotating Union -- 1116-048-064 Single Passage 3/8” NPT Rotating Union -- 1101-235-238 Single Passage 3/8” NPT Rotating Union -- 1101-235-239 Single Passage 3/8” NPT Rotating Union -- 1101-235-343 Single Passage 3/8” NPT Rotating Union -- 1116-090-059 Single Passage 3/8” NPT Rotating Union -- 1116-090-064 Single Passage 3/8” NPT Rotating Union -- 1116-600-059 Single Passage G1/4” NPT Rotating Union -- 1116-485-463 Single Passage G3/8” Rotating Union -- 1116-555-463 Single Passage G3/8” Rotating Union -- 1116-610-463 Single Passage Rotating Union -- 1116-048-059	Single passage for coolant or MQL Closed seals for transfer line and similar applications Full-flow design has no obstructions to trap chips or debris Bearing-supported with threaded rotor for easy...
Single Passage 1/4” NPT Pop-Off Rotating Union -- 1109-013-196 Single Passage 3/8” NPT Pop-Off Rotating Union -- 1109-010-165 Single Passage 3/8” NPT Pop-Off Rotating Union -- 1109-011-165 Single Passage 3/8” NPT Pop-Off Rotating Union -- 902-110-165 Single Passage 3/8” NPT Pop-Off Rotating Union -- 902-111-165 Single Passage G1/4” NPT Pop-Off Rotating Union -- 1109-023-212 Single Passage G1/4” NPT Pop-Off Rotating Union -- 1109-024-212 Single Passage G3/8” BSP Pop-Off Rotating Union -- 902-120-188 Single Passage G3/8” BSP Pop-Off Rotating Union -- 902-121-188 Single Passage G3/8” Pop-Off Rotating Union -- 1109-020-188 Single Passage G3/8” Pop-Off Rotating Union -- 1109-021-188	Single passage for coolant or MQL Patented "pop-off" technology allows unlimited dry running without media pressure Full-flow design has no obstructions to trap chips or debris Bearing-supported with threaded rotor...
Single Passage 3/8” PT Pop-Off Rotating Union -- 1129-036-301 Single Passage 3/8” PT Pop-Off Rotating Union -- 1129-036-327 Single Passage G3/8” Pop-Off Rotating Union -- 1129-033-301 Single Passage G3/8” Pop-Off Rotating Union -- 1129-033-327 Single Passage G3/8” Pop-Off Rotating Union -- 1129-050-301	Single passage for coolant or MQL Patented "pop-off" technology allows unlimited dry running without media pressure Pop-off stroke of 0.7-3.0 mm compensates for thermal expansion of spindle during extended operation...
Two Passage 1/4" NPT Rotating Union -- 2620-000-157 Two Passage 1/4" NPT Rotating Union -- 2620-000-252 Two Passage 1/4" NPT Rotating Union -- 2620-100-252 Two Passage 1/4" NPT Rotating Union -- 2620-120-252 Two Passage 1/4" NPT Rotating Union -- 2620-200-157 Two Passage 1/4" NPT Rotating Union -- 2620-200-252 Two Passage 1/4" NPT Rotating Union -- 2620-220-252 Two Passage 1/4" NPT Rotating Union -- 2620-300-252 Two Passage 1/4" NPT Rotating Union -- 2620-400-252 Two Passage 1/4" NPT Rotating Union -- 2620-500-157 Two Passage 1/4" NPT Rotating Union -- 2620-500-252 Two Passage 1/4" NPT Rotating Union -- 2620-520-157 Two Passage 1/4" NPT Rotating Union -- 2620-520-252 Two Passage 3/8" NPT Rotating Union -- 2620-140-157 Two Passage 3/8" NPT Rotating Union -- 2620-140-252 Two Passage G3/8" BSP Rotating Union -- 2620-122-940	Two independent passages for applications such as clamping and unclamping Balanced mechanical seals for each passage provide long life and reduced torque even at maximum pressure Closed seals provide continuous...

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