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Compliance Controls focuses exclusively on delivering and supporting Emission Control solutions tailored to your specific requirements.

Compliance Controls was formed by two of the best-known, most trusted leaders in industrial engine emissions control and equipment management solutions: MIRATECH Corporation and FW Murphy. Together, these companies – and their customers – saw a clear need for a more advanced, cost-effective, flexible, easy-to-install and easy-to-use engine control system.

Compliance Controls products maximize emissions-control efficiency with easy to use smart-system features that are easy to install. Simplicity that you won’t find anywhere else. Quality that you can trust.
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MEC-R Rich-Burn Air-Fuel Ratio Control System
If your business banks on revenues from rich-burn, spark-ignited natural gas-fueled engines equipped with catalytic converters, you face tough challenges every day. The MEC-R controls rich-burn, natural gas-fueled engines, and maximizes the efficiency of a three-way catalyst by maintaining the proper air-fuel ratio over varying engine loads, speeds, fuel quality, ambient temperatures and barometric pressures.
mec-r brochure
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MEC-L Lean-Burn Air-Fuel Ratio Control System
Businesses that run lean-burn, spark-ignited natural gas industrial engines face many challenges. The MEC-L Lean-Burn Air-Fuel Control System was engineered to minimize engine emissions, maximize fuel efficiency, and cut engine maintenance costs – by maintaining the proper air-fuel ratio over varying engine loads, speeds, fuel quality, ambient temperatures and barometric pressures.
mec-l brochure
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MEC-FI Air-Fuel Ratio Control For Lean-Burn, Turbocharged Engines
The MEC-FI is based on the Millennium Controller developed by FW Murphy – specifically configured for turbocharged, fuel-injected, lean-burn engine air-fuel ratio control. At the heart of the MEC-FI, the 100 MHz, 586-compatible microprocessor continuously monitors inputs and set points and regulates fuel-system air flow for precise maintenance of the optimum lean-burn air-fuel mix over a range of operating conditions.
mec-fi brochure
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AFR-1 Air-Fuel Control System
Striking the right air-fuel ratio to support your catalytic converter shouldn't be that hard. And it's not - if you choose the right equipment. The AFR-1 air-fuel ratio control system is the simplest controller of its type on the market. Enter a single setpoint target, and the system starts controlling the air-fuel mix. This system was designed for pure simplicity.
afr-1 brochure
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AFR-9 Multiple Air-Fuel Control System
The AFR-9 controller offers nine setpoint targets, based on a combination of three RPM settings and three manifold pressure settings. As your engine's load conditions change, your AFR-9 continues to make sure it is in the best possible operating range. If your site is facing tightening regulations, changes in ambient temperature, big load swings or gas quality/pressure changes, the AFR-9 is the right solution. Simple air-fuel ratio control with more flexibility.
afr-9 brochure
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MurCal stocks the full line of products from Compliance Controls. We are ready to answer your questions and help you find a solution for your specific application.

Click on the image to the left to enter the Compliance Controls section of our new online web store. You will find information on all the available parts and have the opportunity to purchase the parts you need.
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