Numatics Introduces 503 Series High Flow Rate Directional Control Valves

NOVI, MICHIGAN, USA, November 13, 2012 — ASCO Numatics, the world’s leading manufacturer of comprehensive fluid automation, flow control, and pneumatics solutions, has introduced the 503 Series of pneumatic directional control valves with ultra-high flow ratings. The valves are designed for automation and piloting applications across a wide range of automotive and tire, food and beverage, pharmaceutical, packaging equipment, and general machinery applications.

”503 Series valves deliver the industry’s highest flow rates per valve size. This enables design and specifying engineers to use smaller, lower-cost valves and components that do more work with less air, energy, and cost,” said Robert W. Kemple, Jr., executive vice president, sales and marketing — Americas, ASCO Numatics. “In addition, designers can choose to generate greater speed of motion for their components using the same size valve.”

This new valve line is available in either spool-and-sleeve or rubber seal models, and proprietary or ISO versions to meet a wide variety of applications. “Our unique dual-spool technology means customers get the highly reliable drive train they need with the highest flow rates — increasing throughput and reducing maintenance costs,” said Kemple.

503 Series valves are designed to complement the benefits of Numatics’ G3 fieldbus electronics. When assembled together, original equipment manufacturers can leverage assemblies that combine ultra-high flow rates with ease of use, plus fieldbus technology that provides configurability, flexibility, and cost-effective I/O and distribution architecture.

For more information, contact Numatics at 1-888-NUMATICS (1-888-686-2842).

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About ASCO Numatics

ASCO Numatics, a company of Emerson, offers comprehensive fluid automation solutions, including flow control and pneumatics products, for a wide range of industry-focused applications. The ASCO Numatics product line in North America consists of more than 50,000 valves, an extensive selection of air preparation equipment, and a full line of actuation products. ASCO products include solenoid pilot valvesangle body piston valves, linear indicators, redundant control systems, and pressure sensors. The Numatics line covers valve manifolds, cylinders, grippers, filters, regulators, and lubricators. For more information about ASCO Numatics products, visit

About Emerson

Emerson (NYSE: EMR), based in St. Louis, Missouri (USA), is a global leader in bringing technology and engineering together to provide innovative solutions for customers in industrial, commercial, and consumer markets around the world.  The company is comprised of five business segments: Process Management, Industrial Automation, Network Power, Climate Technologies, and Commercial & Residential Solutions.  Sales in fiscal 2012 were $24.4 billion.  For more information, visit

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Numatics 503 Series, Directional Control Valves, High Flow Rate, Pneumatic, Automation and Piloting Applications, Ultra-high flow ratings, fieldbus technology

Quick Facts

  • Numatics 503 Series valves delivery the industry's highest flow rates per valve size
  • Available in spool-and-sleeve and rubber seal models
  • Numatics 503 Series Valve has proprietary or ISO versions to meet a wide variety of applications
  • Customers get the highly reliable drive train they need with the highest flow rates