Emerson introduces the Fisher® CS800 Series of regulators with overpressure protection options


External view of Type CS800IR commercial service regulator with internal relief

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Internal view of type CS800IQ commercial service regulator with high capacity relief

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Grace Capwell
Emerson Automation Solutions
+1 (512) 834-7214

New regulator series offers overpressure protection options for a variety of commercial and industrial applications.

MCKINNEY, TEXAS (March 8, 2011) – Emerson Process Management has released the Fisher® CS800 Series of direct-operated, spring-loaded regulators with overpressure protection options.  The CS800 Series’ application flexibility and installation adaptability make them ideal for industrial and commercial applications needing accurate control, fast speed of response and easy maintenance. 

Multiple overpressure protection options are available for the CS800 Series including:

  • Secondary Seat™ Protection: Provides a solution to the most common cause of regulators failing to shutoff.  This new technology employs a secondary seating surface to provide shutoff if the primary orifice seating surface becomes damaged or blocked. 
  • Internal Relief: Provides overpressure protection to the downstream system by relieving gas through the diaphragm assembly to atmosphere during an overpressure situation.
  • High Capacity Relief: Provides an increase in relief performance over basic internal relief thereby lowering installation cost by reducing equipment requirements. 

The CS800 series is available in numerous body sizes, with flanged or threaded end connections, outlet pressure settings ranging from 3.5-inches w.c. to 7.5 psig (9 to 515 mbar), orifice sizes from 1/4-inch (6.4mm) to 1 3/8-inch (35mm), and the option for internal or external pressure registration. 

Visit www.fishercommercialservice.com for a 3D animation of the overpressure protection options in action. 

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About Emerson
Emerson (NYSE: EMR), headquartered in St. Louis, Missouri (USA), is a global technology and engineering company providing innovative solutions for customers in industrial, commercial, and residential markets. Our Emerson Automation Solutions business helps process, hybrid, and discrete manufacturers maximize production, protect personnel and the environment while optimizing their energy and operating costs. Our Emerson Commercial and Residential Solutions business helps ensure human comfort and health, protect food quality and safety, advance energy efficiency, and create sustainable infrastructure. For more information visit Emerson.com.

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