Rotary unions

Do you need help making a decision?  Take a look at our buying guide
65 companies | 921 products
exhibit your products

& reach your clients in one place, all year round

Exhibit with us
Search
Rotary unions | Choosing the right rotary union
There are many sizes of rotary unions available. Outlined below you will find the essential characteristics for calculating the size of your product. The nominal diameter (DN) of your installation: this is the inside diameter of a connecting pipe. The operating pressure of your installation: the rotary union is used in both vacuum and pressure systems. You will need to know the usual pressure of the media, generally between 0 and 1,380 bar (0 to 20,000...
{{#pushedProductsPlacement4.length}} {{#each pushedProductsPlacement4}}
{{product.productLabel}}

{{product.productLabel}} {{product.model}}

{{#if product.featureValues}}
{{#each product.featureValues}} {{content}} {{/each}}
{{/if}}
{{#if product.productPrice }} {{#if product.productPrice.price }}

{{product.productPrice.formattedPrice}} {{#if product.productPrice.priceType === "PRICE_RANGE" }} - {{product.productPrice.formattedPriceMax}} {{/if}}
{{/if}} {{/if}}
{{#if product.activeRequestButton}}
{{/if}}
{{product.productLabel}}
{{product.model}}

{{#each product.specData:i}} {{name}}: {{value}} {{#i!=(product.specData.length-1)}}
{{/end}} {{/each}}

{{{product.idpText}}}

{{productPushLabel}}
{{#if product.newProduct}}
{{/if}} {{#if product.hasVideo}}
{{/if}}
{{/each}} {{/pushedProductsPlacement4.length}}
{{#pushedProductsPlacement5.length}} {{#each pushedProductsPlacement5}}
{{product.productLabel}}

{{product.productLabel}} {{product.model}}

{{#if product.featureValues}}
{{#each product.featureValues}} {{content}} {{/each}}
{{/if}}
{{#if product.productPrice }} {{#if product.productPrice.price }}

{{product.productPrice.formattedPrice}} {{#if product.productPrice.priceType === "PRICE_RANGE" }} - {{product.productPrice.formattedPriceMax}} {{/if}}
{{/if}} {{/if}}
{{#if product.activeRequestButton}}
{{/if}}
{{product.productLabel}}
{{product.model}}

{{#each product.specData:i}} {{name}}: {{value}} {{#i!=(product.specData.length-1)}}
{{/end}} {{/each}}

{{{product.idpText}}}

{{productPushLabel}}
{{#if product.newProduct}}
{{/if}} {{#if product.hasVideo}}
{{/if}}
{{/each}} {{/pushedProductsPlacement5.length}}
steam rotary joint
steam rotary joint
ELSX™

Rotational speed: 0 rpm - 300 rpm
Pressure: 10, 300 bar
Nominal size: 2 in - 3.5 in

ELSX ROTARY JOINT The ELSX rotary joint is the next generation of extended life, self-supported (ELS) rotary joints for use in steam ...

See the other products
Kadant Johnson Europe B.V.
ball bearing rotary union
ball bearing rotary union
RX®

Rotational speed: 3,500 rpm
Pressure: 0 bar - 25 bar
Nominal size: 0.375 in - 6 in

RX ROTARY UNION The RX rotary union uses a balanced seal with special ball bearing or optional tapered roller bearings to support the rotor. This rotary ...

See the other products
Kadant Johnson Europe B.V.
steam rotary joint
steam rotary joint
PT2X™

Rotational speed: 0 rpm - 500 rpm
Pressure: 0 bar - 14 bar
Nominal size: 0 in - 4 in

... construction allows for easy installation. The PT2X rotary joint can also accommodate thermal expansion of the dryer journal – even when used on the front side of paper machines. The PT2X rotary ...

See the other products
Kadant Johnson Europe B.V.
air rotary joint
air rotary joint
W05111 series

Pressure: 0 bar - 12 bar

EAN code: - 8024986001525 Quantity per package: - 0 Minimum order quantity: - 0 Unit of measure: - items

oil rotary union
oil rotary union
SPS-5210

Rotational speed: 0 rpm - 500 rpm
Pressure: 0 bar - 40 bar
Nominal size: 0.25 in

... (under pressure or vacuum) from a stationary source to a rotating component. Need to combine fluid with electrical power, signal and/or data transfer? No problem. The SPS Series rotary unions ...

See the other products
DSTI - Dynamic Sealing Technologies
vacuum rotary union
vacuum rotary union
LT 2 series

Rotational speed: 0 rpm - 500 rpm
Pressure: 0 bar - 40 bar
Nominal size: 0.125, 0.375 in

The 2-passage LT Series rotary unions are designed for air, gas and vacuum use and are ideal for a number of automation and robotic applications. These lightweight, compact rotary unions ...

See the other products
DSTI - Dynamic Sealing Technologies
water rotary union
water rotary union
GP 2

Rotational speed: 0 rpm - 500 rpm
Pressure: 0 bar - 515 bar
Nominal size: 0.125 in - 1 in

... mounting the union to an interface. GP 2-passage models with BSPP thread connections are not available with O-ring face seal glands. Need to combine fluid with electrical power, signal and/or data transfer? No problem. ...

See the other products
DSTI - Dynamic Sealing Technologies
oil rotary union
oil rotary union
F9.280-1

Rotational speed: 10 rpm
Pressure: 10 bar - 500 bar
Nominal size: 0.25 in

F9.280-1 Rotary couplings, single passage connections: G1/4 und pipeØ 8 mm

See the other products
Römheld GmbH Friedrichshütte
oil rotary union
oil rotary union
F9.280-2

Pressure: 10 bar - 500 bar
Nominal size: 0.25 in

F9.280-2 Rotary couplings, twin passage Pipe thread with/without leakage oil recirculation ND 5

See the other products
Römheld GmbH Friedrichshütte
oil rotary union
oil rotary union
F9.280-4

Pressure: 10 bar - 50 bar

F9.280-4 Rotary couplings, four passage Pipe thread with/without leakage oil recirculation ND 5

See the other products
Römheld GmbH Friedrichshütte
multi-passage rotary joint
multi-passage rotary joint
Multi-Circuit Rotary Block

Pressure: 0 MPa - 1 MPa
Nominal size: 5, 6 mm

Best suitable for piping of index tables or other rotary equipment. A single block can serve 4 circuits, 6 circuits or 8 circuits. Make an inquiry for circuits (special made) other than above standard types to the ...

steam rotary union
steam rotary union
GS

Rotational speed: 2,500 rpm
Pressure: 18 bar
Nominal size: 100, 80 mm

... . Wear Plate 5. Horizontal Support Pipe 6. Syphon Pipe 7. Carbon Seal 8. Spring Rotary Joints for Papermaking Industry, GS Series The GS series rotary joints ...

See the other products
Tengxuan
hydraulic rotary union
hydraulic rotary union
ML01R040F

Rotational speed: 0 rpm - 100 rpm
Pressure: 0 bar - 100 bar

... Anticorrosion grade: (EN ISO 12944-2) C3(H) Hydraulic oil/ gear oil rotary union for Wind Turbine used for gear box lubrication system and hydraulic variable pitch system ML series rotary ...

See the other products
Tengxuan
hydraulic rotary joint
hydraulic rotary joint
MCW7-22

... oil tank truck,rotary drilling rig,tunnel boring machine,crane truck.long life and reliability. Hydraulic Central Rotary Joints are designed for excavator, crane, grader and tower ...

See the other products
Tengxuan
air rotary union
air rotary union
2620

Rotational speed: 6,000 rpm
Pressure: 70 bar
Nominal size: 107.95 mm

Two independent channels for applications such as clamping and loosening The balanced mechanical seal of each channel can improve the service life and reduce the torque, even under the maximum pressure Closed seal provides continuous ...

See the other products
Dewel Machinery Technology Co.,Ltd
compressed air rotary union
compressed air rotary union
1129

Rotational speed: 30,000 rpm
Pressure: 100 bar
Nominal size: 17.99 mm

Single channel for coolant and compressed air Automatic induction technology can automatically switch between closed sealing and leakage control according to the type of medium Full-flow design, barrier-free passage, avoiding impurity ...

See the other products
Dewel Machinery Technology Co.,Ltd
refrigerant fluid rotary union
refrigerant fluid rotary union
A10

Rotational speed: 15,000 rpm
Pressure: 70 bar

... barrier-free passage, avoiding impurity residue The threaded rotor supported by the bearing is easy to install Double angular contact ball bearing Labyrinth structure and multiple large leakage ports to protect ...

See the other products
Dewel Machinery Technology Co.,Ltd
air rotary union
air rotary union
RU001

Rotational speed: 0 rpm - 250 rpm
Pressure: 0 psi - 7,000 psi
Nominal size: 1.4, 2.7, 3.2, 1.2, 1.9 in

Rotary Systems' entry level 001-Series swivel union is designed for the hose reel industry, where pressures may be high but rotational speeds and side loads are at a minimum. This economical ...

See the other products
Rotary Systems, Inc.
air rotary union
air rotary union
100 series

Rotational speed: 250 rpm
Pressure: 3,000 psi

Rotating unions allow hydraulic or air power sources to be continuously connected in rotating applications allowing the use of constant pressure hydraulic workholding on lathes, boring ...

gas rotary union
gas rotary union

Pressure: 1,000 psi - 20,000 psi

... of distinguish, the unions with different pressure grades have different color identifications and have obvious specification connection modes and pressure grade marks on the wing nuts. The specification and model of ...

vacuum rotary joint
vacuum rotary joint
MK11A Series

Rotational speed: 300, 100 rpm
Pressure: 1 MPa

... channel pneumatic rotary joint, 1 inlet and 1 outlet, it can transmit compressed air, vacuum, G1/8". compact structure, light weight, corrosion resistant, stainless steel shaft and aluminum shell. All MK single channel ...

See the other products
MOFLON
air rotary union
air rotary union
RU-2-20

Rotational speed: 0 rpm - 4,000 rpm
Pressure: 0 bar - 40 bar

... double piston cylinder ZHVD-DFR for D-chucks. Rotary union for media supply for rotating cylinders. Universal for air + oil/air + coolant. Can also rotate dry (without medium applied). Product ...

water rotary union
water rotary union
086/088

... of air, pressurised oil and cooling oil into rotating shafts are standard products and are not only for use in conjunction with clutches. In addition to this Ortlinghaus also develops and manufacturers rotary ...

water rotary union
water rotary union
1200 SR2

Rotational speed: 0 rpm - 1,500 rpm
Pressure: 0 bar - 100 bar
Nominal size: 0.25 in - 5 in

High pressure hose connection with jacks. Hydraulic control. Technical Data: Surface treatment: Chemical Nickel Implantation: Angle elbow Temperature working: -20°C à 200°C Connection: Thread BSP *for any other type of connection, ...

See the other products
Duff-Norton Europe
refrigerant fluid rotary union
refrigerant fluid rotary union
1117-002-111

Rotational speed: 0 rpm - 30,000 rpm
Pressure: 2,030 psi
Nominal size: 0.375 in

Single passage for coolant or MQL Closed seals for transfer line and similar applications Full-flow design has no obstructions to trap swarf or debris Balanced mechanical seals made from silicon carbide for long life even ...

See the other products
DEUBLIN COMPANY
refrigerant fluid rotary union
refrigerant fluid rotary union
ROTOKOMBI

Rotational speed: 1 rpm - 24,000 rpm
Pressure: 1 bar - 140 bar

... ROTOKOMBI M45 L8 + ESR160/12-QC Rotary Union ROTOPACK + Slip Ring ROTOFLUX Speed [rpm]120, cycling HighlightsExtremely compact rotary transmission system for air ...

See the other products
Moog GAT GmbH
air rotary union
air rotary union

Rotational speed: 250 rpm
Pressure: 0 psi - 3,000 psi

Features Rotating unions allow hydraulic or air power sources to be continuously connected in rotating applications allowing the use of constant pressure hydraulic workholding on lathes, ...

air rotary union
air rotary union
AJT1 series

See the other products
AUTOMAX
air rotary union

air rotary union

multi-passage
indicative price *
$440
air rotary union

... vise through your fourth rotary platter with infinite rotation! These two base plates are drop-in compatible with Haas Air Vise Ready Provision Kits, as well. HRT-210SS Rotary Union ...

water rotary joint
water rotary joint
R series

Rotational speed: 1,500 rpm - 3,000 rpm
Pressure: 10 bar - 50 bar
Nominal size: 9 mm - 150 mm

The Type R Rotary Joints are manufactured with damage-resistant materials. The materials used by the type R rotary joints are brass and stainless steel. These joints ...

See the other products
Johnson Fluiten
water rotary union
water rotary union
LC series

Rotational speed: 0 rpm - 3,500 rpm
Pressure: 0 bar - 23 bar
Nominal size: 0.5 in - 2 in

For water and hot water(Applicable industry: General machinery) Another customer of the business Steel Rubber tire Environment High function material Long life: Fine ceramic and special carbon is adopted as a mechanical ...

See the other products
RIX Europe
water rotary union
water rotary union
9001 G-ND

Rotational speed: 700 rpm
Pressure: 6, 17, 12 bar
Nominal size: 0.25 in - 1.5 in

Rotating joint type G-ND – new design with bellows system cartridge, graphite bushbearings, for universal use Product characteristics universal use – cooling, heating, clamping with bellows sealing ...

See the other products
HAAG + ZEISSLER Maschinenelemente GmbH
water rotary joint
water rotary joint
366000005E

Rotational speed: 200 rpm
Pressure: 10 bar
Nominal size: 12.7 mm

4-channel Media Rotary Joint G1/2" Medium: Air, Water Number of Channels: 4 Pressure : max. 10 bar Speed: max. 200 rpm Temperature: max. 80 °C Ports: 1/2" Vacuum: 200 mbar The media rotary ...

See the other products
SCHLEIFRING GmbH
air rotary union
air rotary union
S 350-SWP

See the other products
Robot System Products AB
water rotary union
water rotary union

The rotary union, or call rotary joint, is used in the fluid and gas transferring industries widely. It provides a mechanical seal between a stationary supply pipe and a rotating ...

exhibit your products

& reach your clients in one place, all year round

Exhibit with us
How to choose this product
rotary-union

Rotary unions are autonomous, self-supporting couplings that allow leak-less fluid transfer (steam, water, air, oil) to a rotating machine's extremities. They can have several channels and ports, enabling them to convey several fluids simultaneously.

Applications

Hydraulic applications for rotary unions are numerous: offshore operations, aeronautics, construction, automobile and other industries.

Technologies

The two collars of the device, one of stainless steel, the other of graphite, are in contact with one another. Each has a polished surface.

How to choose

Several parameters must be considered when choosing a rotary union:
- Rotation velocity
- Number of circuits and their diameters
- Fluid nature, temperature and pressure

Advantages

- Fluid passage
- Watertightness
- No maintenance