What is a Deublin coupling?
Deublin rotary unions (also known as rotary joints, rotary couplings and rotary swivels) are precision mechanical devices used to transfer fluid from a stationary source, such as a supply pipe, into a rotating piece of machinery.
How does a Deublin rotary union work?
Mechanical seal rotary unions minimize seal wear, torque, and heat generation through intentional balancing of hydrodynamic forces. Flatness must be controlled within microns, and different seal materials are employed according to the desired RPM, pressure, and media.
What does a rotary union do?
A rotary union (or swivel joint) is a device used to transfer fluid under pressure or vacuum from a stationary inlet to a rotating outlet, preserving and isolating the fluid connection.
How does a hydraulic rotary actuator work?
Hydraulic rotary actuators are typically utilized for applications requiring high torques. In vane-type actuators, the operating principle is similar to that of a pneumatic rotary actuator. Pressurized fluid is used to produce rotation of the vane which produces rotational motion of the central shaft.
What is a swivel joint?
Definition of swivel joint : a joint with packed swivel to permit rotational motion of one part relative to another.
What is an RF rotary joint?
RF Rotary Joints are the electro-mechanical components used to transmit RF signals between stationary and movable parts of a system.
What is the main function of rotary actuator?
A rotary actuator is a pneumatic cylinder used to provide a turning or angular movement, allowing a stroke in an oscillating motion through a defined angle. They are durable and give a relatively high force (torque) for size.
What are the types of rotary actuator?
There are many types of rotary actuators, each offering particular advantages. The three most commonly used types are rack and pinion, vane and helical. Parker Hannifin Series HTR and PTR/LTR rotary actuators are of the rack and pinion type.
How does a swivel mechanism work?
The most common way how chairs work is by twisting – when you lean back on your chair, the swivel mechanism allows for a circular motion. When you lean backwards they will pop up to provide extra support when making an effort to get out of it – that’s how the swivel chair mechanism work.
What kind of seal does a deublin rotary union have?
Deublin’s Type C steam rotary union features a seal wear indicator for planned downtime and withstand high temperatures up to 406°F. Deublin rotating unions feature balanced mechanical seals for maximum wear resistance in high-temperature, high-pressure and high-speed applications.
What kind of bearings does a deublin 1205 use?
The 1/2″ Deublin rotary union is a self-supported, monoflow design. The 1205 features lubricated for life bearings for longer life, reducing downtime and maintenance for rotary union hydraulic applications.
What’s the speed of a deublin rotating Union?
Deublin’s off-the-shelf rotating unions offer multiple configurations to fit any machining application. Deublin’s 1117 bearingless rotary union utilizes closed seal technology for long service life under harsh operating conditions. With bearingless unions, speed can range from 10,000 rpm up to 50,000 rpm.
How are rotary unions used in mechanical seals?
Mechanical seal rotary unions minimize seal wear, torque, and heat generation through intentional balancing of hydrodynamic forces. Flatness must be controlled within microns, and different seal materials are employed according to the desired RPM, pressure, and media. These unions perform reliably even at pressures >140 bar and speeds >40,000 RPM.