ASCO RCS Series Redundant Control System

Brand: ASCO

The ASCO Series RCS redundant control system is a pilot valve system with no single point of failure that can result in unwanted closure of the process valve. It is suitable for use in SIL 3 applications and greatly reduces spurious trip rates.

The ASCO Series RCS achieves a higher level of process safety and reliability by using a redundant, fault-tolerant architecture, high diagnostic coverage, and automated testing.

It is available in a variety of constructions that provide valve diagnostics through automated, partial-stroke testing. The availability and reliability of The ASCO Series RCS provides the customer´s best choice for process valve diagnostics and actuation.
  • Keyed bypass allows on-line maintenance without process interruption
  • High safety availability
  • No nuisance trips
  • Optional stainless-steel construction



Body Material

  • Aluminum, Engineered Plastics, Stainless Steel


  • From 1.0 Cv to 2.0 Cv


  • Dual 3-Way2 x Normally Closed, Dual 3-Way2 x Normally Open

Maximum Differential, Maximum Operating Pressure

  • Vacuum to 150 psig


  • Air, Inert Gas

Operating Environment

  • Corrosive, Hazardous, Indoor, Outdoor

Port Type

  • Female NPT

Standards & Regulations

  • IEC 60529 (Ingress Protection), ATEX, ISO , IP65

Valve Actuation

  • Solenoid - Air Pilot


  • 110 AC, 120 AC, 230 AC, 12 DC, 24 DC, 48 DC, 120 DC
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