Showing posts with label pneumatics. Show all posts
Showing posts with label pneumatics. Show all posts

Saturday, April 28, 2018

Siemens Regulators, Flow Controllers, Relays, Transducers and Filters

Siemens pneumatic products
Siemens pneumatic products.
Siemens field proven pneumatic regulators and relays fulfill a number of applications in process
control and manufacturing.

Download the full Siemens Pneumatic Product flyer here.

Air Pressure Regulators

Precision pressure regulators control air pressures in applications where precise and dependable regulation is required, such as pneumatic instrument circuits, test stands, production checking fixtures, and industrial air gauges.

I/P Transducers

The model 77 current-to-pneumatic transducer is designed specifically for measuring circuits, converts the output of an electronic measuring device to a pneumatic signal.
The model 771 current-to-pneumatic transducer is designed as a cost-effective valve service transducer. The 771 receives an electronic signal, such as the output of a PID control function, and drives a control valve via the transducer until the control function is satisfied.

Flow Controllers & Relays

The model 62 constant differential relays serve as air-flow controllers maintaining a constant air purge for each setting of an integral needle valve.
The model 63 constant differential relays are used in con- junction with an external needle valve to provide constant volume flow rates of liquids or gases over a continuously adjustable range.
The model 66 amplifying and reducing relays are used to in- crease or decrease control-circuit pressure signals.

Air Filter

The instrument air filter is used to remove dirt, oil, water, and other impurities from an instrument-air supply. The highly efficient instrument-air filter uses the principle of coalescence to trap fine particles in a dripwell.

For more information about Siemens pneumatic products, contact Ives Equipment by visiting https://ivesquipment.com or calling (877) 768-1600

Tuesday, May 31, 2016

Solenoid Valve Operating Principle

solenoid magnetic field
Solenoid magnetic field
A solenoid is an electric output device that converts electrical energy into a linear mechanical force.

At its most basic level a solenoid is an electromagnetic coil that uses magnetism produced by the flow of current to physically move the armature of a solenoid. The armature that is movable can be a rod or a metallic arm. One of the most common uses of solenoids are as the operators of valves.

A plunger solenoid contains a movable iron rod that is inserted into a coiled cylinder. The rod is connected to a plate with two contacts. With the aid of a spring the contacts are normally open. When an electrical current passes through the coil, it generates a magnetic field that attracts the rod into the coil chamber. The movement of rod will move the contacts into a closed position. When the current is turned off the magnetic force is removed and the tension in the spring forces the rod back out to its original resting position. This back-and-forth motion of the rod to control a circuit is used to operate a variety of mechanical devices such as valve seats and pneumatic poppets.

solenoid valve
Solenoid valve components
A solenoid valve is a combination of two basic functional units:
  • The solenoid (electromagnet) described above.
  • A valve body containing one or more orifices.
ASCO solenoid valve
ASCO Redhat Solenoid Valve
Flow through an orifice is controlled by the movement of the core when the solenoid is energized or de-energized. The core is enclosed in a sealed tube, providing a compact, leak tight assembly.

This video provides a very basic visual understanding of the solenoid operating principle and how the mechanism works. From this video it is easy to understand how the linear movement created by the solenoid can be transformed into the movement necessary to open and close solenoid valves.




For more information about solenoid valves, contact:
Ives Equipment
877-768-1600