Pressure regulator: Pneumatic controller saves natural gas

Economizing when natural gas has to substitute for compressed air.

03/20/2008


Some of the areas where pneumatic controllers still thrive are natural gas pipelines. Often these are in remote locations where power is not routinely available, so the compressed gas is used in place of compressed air. This works, but given the growing cost of natural gas combined with its greenhouse gas characteristics, this is a much less attractive choice. The new C1 pneumatic controller from Fisher ( Emerson Process Management )

Fisher has calculated that replacing an older high-consumption device with a C1 can save from 1,000-5,000 cubic meters of methane per year, typically worth $350 to $1,400, so the new unit can pay back the cost of replacement in less than one year.

The design features a new patented proportional band adjustment assembly to replace the three-way valve. The company says this provides even more reliable control and increased safety even in applications handling sour process fluids.

In operation, the C1 compares sensed process pressure to an operator adjusted set point, and sends a pneumatic signal to the adjacent control element that maintains the set point value. Units are available with various control approaches: proportional only, proportional plus reset, differential gap, and transmitter.

—Edited by Peter Welander, process industries editor, PWelander@cfemedia.com ,
Process Instrumentation & Sensors Monthly

Register here and scroll down to select your choice of free eNewsletters.





No comments
The Engineers' Choice Awards highlight some of the best new control, instrumentation and automation products as chosen by...
The System Integrator Giants program lists the top 100 system integrators among companies listed in CFE Media's Global System Integrator Database.
The Engineering Leaders Under 40 program identifies and gives recognition to young engineers who...
This eGuide illustrates solutions, applications and benefits of machine vision systems.
Learn how to increase device reliability in harsh environments and decrease unplanned system downtime.
This eGuide contains a series of articles and videos that considers theoretical and practical; immediate needs and a look into the future.
Robot advances in connectivity, collaboration, and programming; Advanced process control; Industrial wireless developments; Multiplatform system integration
Sensor-to-cloud interoperability; PID and digital control efficiency; Alarm management system design; Automotive industry advances
Make Big Data and Industrial Internet of Things work for you, 2017 Engineers' Choice Finalists, Avoid control design pitfalls, Managing IIoT processes
Motion control advances and solutions can help with machine control, automated control on assembly lines, integration of robotics and automation, and machine safety.
This article collection contains several articles on the Industrial Internet of Things (IIoT) and how it is transforming manufacturing.

Find and connect with the most suitable service provider for your unique application. Start searching the Global System Integrator Database Now!

Big Data and bigger solutions; Tablet technologies; SCADA developments
SCADA at the junction, Managing risk through maintenance, Moving at the speed of data
Flexible offshore fire protection; Big Data's impact on operations; Bridging the skills gap; Identifying security risks
click me