Directional Control Technology
Spool, diaphragm or poppet technology in a directional control valve reliably controls pneumatic circuit flow.
Spool, diaphragm or poppet technology in a directional control valve reliably controls pneumatic circuit flow.
Electrically, pneumatically, mechanically or manually operated valves in directional control technology allow the valve to shift internal air direction faster, making it ideal for tasks demanding high cycle rates. This dependable design delivers the industry’s longest service life, even in harsh environments.
The frictionless fit is the secret to why the technology is far more reliable than dynamic seal valves. The air travel in a lapped spool-and-sleeve valve creates the air-bearing effect that prevents metal-to-metal contact.
The minuscule clearance between the spool and sleeve allow an intentional leakage of air across the spool lands. This, coupled with a smooth finish, centers the floating spool within the sleeve preventing metal-to-metal contact and creating a frictionless fit (i.e., an air-bearing effect with no wearing parts).
A major advantage of spool-and-sleeve technology is its self-cleaning ability. Because the spool and sleeve have precise tolerances, extremely smooth finishes and very hard surfaces, the spool lands are made razor sharp. These attributes, along with the equally sharp holes in the sleeve, will guillotine any stray particulates and will make the valve self-cleaning.
Case Study
When technical assistance was needed to determine specifications and certifications, Emerson provided ASCO valves constructed with stainless-steel bodies and explosion-proof coils.
Case Study
When the sand slurry trailer maintenance facility started upgrading their equipment, they turned to Emerson for a valve that could withstand the harsh conditions.
Case Study
Learn how a leading welding equipment manufacturer incorporated Emerson ASCO directional control technology to support its product innovation strategy.
