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Kadant Johnson invented the rotary pressure joint in 1933, and continues to pioneer innovative steam joint technologies. Use the following table to view our rotary joints designed for steam service.
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DSTI provides custom rotary unions for use in a number of semiconductor equipment designs. Our engineering staff can design a compact, clean-room compatible rotary union to transfer many media commonly used in the semiconductor industry. Please contact DSTI to discuss the specifics of your application.
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The multiple passage rotary union that is shown was designed and manufactured for wafer processing equipment. This union was designed to pass multiple medias without cross contamination between passages.
This rotary union is made from stainless steel and was designed to pass air, vacuum and wafer processing slurry. This is only one example of a union that we have designed for the Semi-conductor industry. We currently have several large OEM's that we provide custom unions for in this industry.
If you have a custom rotary union application, please contact our Technical Sales department at 1-800-959-0146.
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Model Sizes Common Applications
Type BCI 3/4" to 1" Continuous caster rolls, metals industry
Type C-Cast 3/8" to 1-1/2" Continuous caster rolls, metals industry
Type G 1/8" to 5/8" High speed spindles, gun drills, milling
Type OTS Custom Over-the-shaft cooling
Type RX 3/8" to 6" All-purpose cooling, high performance
Type WH 1/2" to 2" General purpose
5000 Series 3" High speed, high shock loading
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DSTI can provide custom rotary unions designed to mount directly to an existing shaft. These units can be used to feed air, grease & other medias into rotating shafts. Please consult your DSTI representitive to discuss the details of your specific application.
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Rotary Systems designs and manufactures a line of standard and custom over-the-shaft rotary unions.
The rotary union shown is constructed from carbon steel and utilizes a precision ground shaft, radial ball bearings and Teflon seals. This is a two passage rotary union with .25" NPT passages with a four inch bore through the shaft. This union was designed specifically for a high pressure hydraulic indexing application.
Our standard over-the-shaft line of rotary unions can be viewed on our website by clicking on the 011 series. Our standard unions are offered in two and four passages with a .5", 1.5” or 2.0” bore through the shaft. The bore through the shaft is independent from the union. Some customers will pass a shaft or electrical wires through this bore.
If you have a custom rotary union application, please contact our Technical Sales department at 1-800-959-0146.
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1⁄8" to 1⁄2" Air-Hydraulic Unions
- monoflow design
- self-supported rotating union
- radial housing connection
- balanced mechanical seal
- seal combinations:
Carbon Graphite/Hardened Tool Steel or
Carbon Graphite/Silicon Carbide
- felt oiler in seal cavity for air service
- oiler for relubrication (3 - 5 drops/month)
- low torque
- weight-optimized design
- aluminum housing
- bearings lubricated for life
3⁄4" to 11⁄2" Air-Hydraulic Unions
- monoflow design
- self-supported rotating union
- radial housing connection
- balanced mechanical seal
- seal combinations:
Carbon Graphite/Hardened Tool Steel or
Carbon Graphite/Ceramic
- felt oiler in seal cavity for air service
- oiler for relubrication (3 - 5 drops/month)
- low torque
- aluminum housing
- stainless steel or steel rotor (respective of model)
Deu-Plex Hydraulic Unions
- duoflow design
- self-supported rotating union
- flanged rotor
- balanced mechanical seals
- seal combinations:
Carbon Graphite/Ceramic - standard
Tungsten Carbide/Ceramic - E.L.S.
- full-media flow
- aluminum housing
- cast iron rotor
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Features
8 different, continuously improved sealing systems
Large number of product varieties available
Customer specific designs, even for high-demanding uses
Combinations of various mediums and electrical currents
The most modern materials and manufacturing processes guarantee the highest quality
Products
In almost all branches of industry rotary unions are needed for transmitting mediums between stationary and rotating machinery parts, whereby every application has different requirements. We have developed an extensive selection of various sealing systems, in order to meet these different requirements, and to be able to offer an optimal solution. We have a large range of products available, and as well customer specific designs.
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Unions in stainless steel
BENE INOX offers you a complete range of stainless steel unions and fittings
"Industry" Range
(ISO, Metric, ANSI...)
Unions with conical seat or unions with flat seat (BSP or NPT)
3000 Lbs unions (NPT)
Hydraulic coupling
Cam coupling (MIL-C27487 / DIN2628 standard)
Symetrical coupling (NFE29-572 standard)
Express coupling (NFE29-573 standard)
Welding unions, or male/male, male/female, SW/male, growed...
SW, BW or threaded fittings (coupling, nipple, cap, bend, tee, reducer, flange, collar...)
Threaded stirrup, clamp and pipe holders
...
"food & dairy" Range
(SMS, DIN, Tri-clamp, Macon)
Unions for welding, unions for expanding, unions for hose fitting
male part, liner, nut, blind nut, with EPDM/FKM/Viton/PTFE gasket...
SMS/BSP adaptor, DIN/BSP adaptor
Bends (elbows at 90°, at 45°, at 180°)
Tees, reduced tees
Concentric reducers, excentric reducers
Clamps, pipe holders, stainless steel pipes
...
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CF and Wire Seal flanges are part of the same family of Ultra-High vacuum components that compress a copper gasket between two stainless steel flanges to create a vacuum tight seal.
CF flange systems are more commonly used within the vacuum industry and therefore have a larger standard product offering. CF flanges are specified by their outer diameter. A&N CF flanges are manufactured to industry standards and are interchangeable with all other Conflat® style flanges and fittings. Industry standard sizes range from 1.33” to 16.5”.
Wire Seal flanges are desirable for those applications that require flanges larger than those available with the CF flange system. Wire Seal flanges have no industry standard dimension specifications. While vacuum component manufacturers endeavor to create interchangeable flanges, the only way to ensure compatibility is to purchase a mating set of wire seal flanges from a single manufacturer.
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Stainless Steel Unions
- monoflow and duoflow (available) design
- self-supported rotating union
- radial or axial (available) housing connection
- seal combinations:
Carbon Graphite/Ceramic - standard
Tungsten Carbide/Ceramic - E.L.S.
- wetted parts made of 316 stainless steel
- suitable for the food, chemical & pharmaceutical industries
- full-media flow
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The rotary union pictured was designed to pass pneumatics and/or DI water for a Chemical Mechanical Planarization (CMP) piece of Semi-conductor equipment. The union is manufactured from 316 stainless steel and the shaft is hard chromed on the seal surface for hardness. We currently provide a number of multiple passage rotary unions to the Semi-conductor industry in the CMP field.
Please contact our Technical Sales Staff for your specific requirement.
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SMC Series Subminiature Couplings
The SMC Subminiature Coupling is Colder Products’ smallest coupling. This twist-to-connect coupling provides a reliable and more secure alterative to luer-type connections. The SMC also allows the tubing to rotate freely when connected, which prevents both kinked tubing and accidental disconnection during use.
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BALL-SWIVEL PLUG
- The plug swivels for greater manoeuverability!
- Offers a 53° conical range of motion for greater operator comfort
- Allows an airflow of up to 2,095 LPM (74 SCFM)
- Maximum Air Pressure: 6.2 Bar (90 PSIG)
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Rotary Systems' entry level 90 degree swivel is designed for the hose reel industry. This economical swivel uses a hardened and ground shaft and impregnated Teflon seals. The 001 series is able to withstand high pressures, moderate speeds and low side loads.
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Developed originally as part of the TODO-MATIC® coupling construction then subsequently as a stand alone product, the TODO® swivel has proved itself in the toughest applications for over 20 years.
Used mainly to allow free hose movement without imparting torque stresses to the assembly (one of the biggest causes of premature hose failure).
# Simple design, low maintenance
# Very compact
# High flow rate / low pressure drop
# Full range of sizes, materials and connections
# Stainless steel bearings and single 'O' ring seal for realibility
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Any semi-rigid gas pump hose can be made flexible and easy-to-handle with DynaVariacor® - the patented multi-directional connector.
It reduces efforts, increases nozzle manoeuvrability.
Prevents unwanted twisting of the hose.
Easy filling whatever the position of the gas tank cover or type of vehicle.
Easy nozzle removal from the vehicle.
This connector Improves uniform wear of the hose thanks to less twisting.
Best flow whatever position the connector is in.
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Rotary Systems' inline dual flow unions are designed for both high and low pressure applications. The unions utilize a hardened and precision ground shaft, impregnated Teflon seals with o-rings and dual radial ball bearings to prevent side loading to the seals.
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ZLC Series Die-Cast Nickel-Plated Zinc Quick Disconnect Couplings
Colder Products’ new die-cast nickel-plated zinc quick disconnect couplings (ZLC) are a reliable, economical solution that is particularly suitable for high volume production requirements when the durability of metal is required. Streamlined and lightweight in relation to comparable machined brass couplings, the ZLC is interchangeable with many of Colder’s existing coupling lines.
The ZLC incorporates an easy-to-use thumb latch, automatic shutoff valves, integral terminations, and an audible “click” indicating a secure connection.
The nickel-plated zinc ZLC provides effective chemical resistance to gasoline, ink, air, water, and many other fluids. It weighs approximately 20 percent less than comparable chrome-plated brass couplings and operates at temperatures ranging form -10° F to 150° F (-23° C to 66° C). Temperature capabilities and chemical resistance may be extended with valve and seal options. Prior to plating, the ZLC is impregnated to eliminate porosity. The ZLC is offered in panel mount or in-line configurations and terminations, including hose barb and pipe thread.
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A range of swivel joints muli channels with or without electrical commutator, with or without friction.
Many possible diameters of passage.
With of a standard range of products, we carry out products to measure adapted to your application.
Do not hesitate to consult us
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Gamme JR : Pour plateaux indexeurs, joints tournants multivoies, mixte multircuits électrique en option : jusqu'a 12 voies pour air comprimé ou vide et 24 circuits electriques.
Gamme JC : Principe exclusif sans pièces de frottement (1 ou 2 voies). Applications jusqu'a 20 000 t/min et 100 bars. Fonctionne à sec.
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PIPE JOINTS, SWIVEL JOINTS & QUICK COUPLING JOINTS
Metal swivel joints to suit any need for your spraying systems, and modern quick coupling joints made out of high technology plastic materials.
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SafeWay’s S51 Series is a minimum spill, thread-to-connect, fluid transfer quick coupling designed for use with most industrial fluids. It can be connected under full system pressure by rotating the female threaded heavy-duty ductile cast iron wing nut or brass hex nut onto the mating male threaded tip (nipple).
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ST Series Fluid Couplings
This straight-through coupling series is designed for use where minimum pressure drop is required and valving is not needed. The manually operated design is ideal for use on pressure wash, steam cleaning and carpet cleaning equipment, as well as many fluid transfer systems. Featuring a ball lock design, the smooth bore permits free flow of gas or liquid. Both male and female NPTF, BSPP and hose stem connections are available. Additional options include sleeve lock, five seal options, dust caps and dust plugs.
Features
Ball lock
Manual operation
Smooth bore permits free flow of liquid or gas.
Male and female NPTF, BSPP and hose stem connections
Options
Sleeve Lock
Seals: Teflon (1-ST
through 8-ST), Neoprene, Viton, Buna-N and EPDM
Standard materials
Brass or 303 stainless steel socket construction
Stainless steel springs, balls and retaining rings
Brass, zinc plated steel and 303 stainless steel
plugs
High impulse heat treated 416 stainless steel plugs
available in 1/4" and 3/8" body sizes
Buna-N (Nitrile) seals
Accessories
Dust Caps and Dust Plugs for a limited number of sizes
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SafeWay’s FFE49 Series is a non-spill, push-to-connect, fluid transfer quick coupling designed for use with most industrial fluids. This series is interchangeable with quick couplings meeting International Standard ISO 16028 dimensional requirements, and our field proven, heavy-duty FF49 Series. Some basic applications include skid-steer loaders, power utility equipment, construction equipment, agricultural equipment, and hydraulic hand tools. Use this quick coupling series whenever spillage can result in a safety or environmental hazard, when air inclusion during connection to a hydraulic system cannot be tolerated, and when international interchangeability with other brands is required.
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SafeWay’s S10 Series is a general purpose, double shut-off quick coupling capable of containing a wide variety of fluids. Primarily used for the transfer of hydraulic fluid, they can also be used with water, steam, chemicals and some gases. Widely used in both stationary and mobile industrial applications.
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The SH20 Series is a general purpose, double shut-off quick coupling capable of containing a wide variety of fluids. This series can be found anywhere a dependable connection and disconnection of a fluid transfer line is required. Through the years, this interchange has been widely used on both mobile and industrial applications. They can be found on garden tractors, self-propelled combines, skid-steer loaders, wire pullers, and hydraulic presses.
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SafeWay’s S70 Series offers unique internal valving, combined with SafeWay’s two-way sleeve feature, allowing one-hand connection under full system pressure. The body (coupling) half can be mated to either a ball valve or poppet valve ISO male tip (nipple). The S70 Series is used primarily with agricultural equipment. It is original equipment on full size tractors and front-end loaders. Use when connection and disconnection under pressure, without the use of tools, is desirable.
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Couplings for cooling circuits, cold water, hot water, glycol solution, thermal transfer fluids, oils.
Sealing couplings with brass check valve.
Couplings to be used with a straight through or self-sealing fitting.
Clearance diameter for fluid : 6, 9, 12 or 16 mm
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DIAGNOSTIC quick-release couplings have been purposely designed to make the maintenance of hydraulic systems and checking pressure within the circuit easier, quicker and more effective. Male couplings have to be assembled on the hydraulic line to be checked while the female parts have to be connected to the diagnostic and monitoring equipment. Conformity to ISO 15171-1 standards guarantees worldwide interchangeability.
Applications
* Agriculture machines
* Forestry machines
* Earth moving machines
* Road machines
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