Eric Cummings, global safety manager at ROSS Controls, explains power elements and safety standards to consider when designing a pneumatic lockout system.
To view the article, visit http://goo.gl/5U8M0b. Additionally, visit our safety page for more industry-specific information.
To find out more about our company and products, visit our website, or give us a call at 1-800-GET-ROSS.
ROSS Controls has expanded its Dale CX Series Valves with the addition of a new ¼” port size. In addition to a smaller footprint, the ¼” valve is capable of handling up to 250 psi (17.2 bar).
All CX valve sizes, including the new ¼”, are available as individual valves or combined in manifolds to eliminate piping, allow bi-directional flow, are port pressure independent, and include a poppet design that provides high dirt tolerance.
For more information on ROSS Dale applications, please visit http://goo.gl/ThOIVa.
For more information on our company and products, feel free to visit our website www.rosscontrols.com or give us a call at 1-800-GET-ROSS to discuss your application.
The following illustrations show the forces acting on the valve in both actuated and deactuated states. The forces shown are for a Series 27 valve with 1/2″ to 1″ ports. Other valves have similarly proportioned forces.
The only friction to be overcome in the movement of the valve is the U-cup seal on the piston poppet, and the spindle in its guide at the bottom of the valve. The frictional forces at both these points are insignificant in relation to the forces acting on the valve.
Vacuum packaging is a process where a product is placed in a bag or sandwiched in-between two sheets of plastic, a vacuum is applied to remove atmospheric air and then the product is sealed. In an effort to increase machine speed, valve port sizes generally range from 1” to 2-1/2”.
Our customers have had great success using Dale Series valves in their vacuum packaging applications. A leading OEM tested the Dale series and reported:
“The valve reduced the time to evacuate the sealing die in a head to head test with our current valve. The power consumed by the vacuum pump was also reduced 6% at 10 cpm.”
For more information on ROSS Dale applications, please visit http://goo.gl/ThOIVa
For more information on our company and products, feel free to visit our website www.rosscontrols.com or give us a call at 1-800-GET-ROSS to discuss your application.
Practically every pressure-containing vessel is leak tested during production or assembly. There are generally three types of leak test methods: pressure or vacuum decay, flow tests, and helium tests.
You might ask, “Why are the valves used in testing so important?” Essentially, if the valves being used to control the test themselves are leaking, you won’t be able to tell if the product under test is leaking.
Tray packing is a modified atmospheric packaging process where a product is placed in a tray, a vacuum is pulled to remove atmospheric air, inert gas is injected, and the tray is sealed. The process helps to extend shelf-life, enhance color, and eliminate crushing.
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