High-Quality Flow Control Products

Quad 0 Combustors

Big Iron Oilfield Services coordinated with Cordova Flow Controls when they decided to engineer a line of Quad 0 Enclosed Combustor Units (ECUs) with the understanding that tank vapor pressures, temperatures, and airflow needed to be controlled simultaneously to ensure proper destruction of tank vapors.

Big Iron and Cordova quickly realized in order to adhere to the testing standards of NSPS Subpart 0000 (Quad 0) as specified by the U.S. Environmental Protection Agency, proper airflow was critical to maintaining the destruction of tank vapors throughout the specified flow rates of the ECUs. Cordova's GATEKEEPER ignition system, in combination with Big Iron's "Air Dial", ensures that >99% destruction efficiency is met.

Big Iron's Line of New ECUs Offer

  • Clean, Safe, and Reliable Operation
  • Helps Prevent Unnecessarily High Volumes of Emissions & Related Fines
  • Easy Installation
  • Continuous Operation
  • No Visible Flame
  • Smokeless Destruction of Tank Vapors
  • No Flame Shutdown
  • High Temperature Shutdown
  • Liquid Shutdown
  • Data Logging
  • Radio Communications for Alarm

For a typical P&ID of ECU on location, please click here ECU Specs. 

For in-depth product details, including basic flow rates, please click here ECU P&ID.

Emission Control

Cordova's DUMPGUARD 2500 is the perfect solution to protect against "runaway" dump controllers on separators, dehydrators, and scrubbers on compressors.
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Cordova's RELIEFGUARD 2500 helps protect against unscheduled releases or ruptures from pressure relief valves in your locations.
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The Data Vault data logger can store up to 500,000 records of ECU/ignition status with 2 analog and 2 digital inputs while also utilizing  two 64MB memory chips for redundant storage.
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The Cordova RAD-I/O package is an economical way to transmit ignition status across locations to a PLC when digging for an alarm wire or utilizing a Data Vault is not preferred.
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Ignition Systems & Controls

The DEFENDER-LITE is the perfect economical solution and the most basic of the Cordova Flow Controls line of ignitions. It simply lights the ECU's pilot and monitors the flame continuously. It has external LED status lights and can operate one valve to coincide with the pilot status.
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The DEFENDER is more robust than the Defender-Lite and includes a 3.5" LCD touchscreen display and is capable of operating two valves, one for the pilot and one for main burn gas to coincide with the pilot status.
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Cordova's GATEKEEPER is a high-end model ignition system and is a great solution for maintaining pilot status, opening, and closing valves, as well as monitoring temperatures and pressures.
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The DATA VAULT data logger is the perfect complement to any model of the ignition system and can record pilot status, temperatures, pressures, etc. for up to 4 years at 1 log per minute.
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Cordova's GPV-250 process valve is a great option for controlling the tank vapors as they enter the ECU. It also serves as an ESD shutdown valve upon ignition failure.
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Defender-Lite

The DEFENDER-LITE is a great, economical solution to help maintain and re-light the pilot for your Enclosed Combustion Unit (ECU). The system was specifically engineered to provide a reliable and continuous spark and pilot recognition at an economical cost. The DEFENDER-LITE is the most basic and user-friendly model of the Cordova ignition system and simply lights the pilot, monitors the pilot, and alarms out upon failure. It also has the capability of sending a pneumatic signal to control a Cordova GPV-250 process valve (or similar) that coincides with pilot status. An optional Cordova DATA VAULT can be added to record pilot uptime.
DEFENDER-LITE Specs 

The DEFENDER LITE includes an external LED light that gives pilot status and is controlled by one external button. No need to open the door.

Defender

The Cordova DEFENDER ignition system is the flagship system designed to help ECUs maintain complete destruction of the gas entering the combustor. It comes standard with a 3.5" LCD touchscreen display to start and observe the operation of the system. It can also operate up to two optional valves to help with pilot control and main burner control, as well as up to two thermocouple inputs.  There is a default alarm switch included to transfer alarm status to a PLC via wire and can accommodate optional RAD-I/0 wireless point-to-point radios or the popular DATA VAULT data logger to store pilot uptime.
Defender Specs

The DEFENDER is easily field upgradeable to become a GATEKEEPER if pressure control on the main burn gas is desired.

Gatekeeper

The GATEKEEPER ignition system is the high-end model of Cordova's systems and has all of the functions of the DEFENDER, but also has the capability of monitoring the main burn line pressure. Monitoring the main burn line pressure causes the system to only allow burn gas to the ECU when proper pressures are met and maintained, ensuring complete combustion of the vapors.  The GATEKEEPER comes with a standard default alarm switch to transfer alarm status to a PLC via wire and can accommodate optional RAD-I/0 wireless point-to-point radios or the popular DATA VAULT data logger to store pilot uptime.
GATEKEEPER Specs

Data Vault

The Cordova Data Vault is the perfect solution for recording operational efficiency for Enclosed Combustion Devices and any other equipment where uptime and downtime recording is critical. The powerful Data Vault from Cordova Flow Controls has 2 analog and 2 digital inputs with onboard pull-ups, one radio port, and one communications port that can be set to RS232 or RS485 for retrieval of data through existing automation. If no existing automation is available, the Data Vault is capable of storing 500,000 records with automatic rollover of the oldest data first and also utilizes two 64Mb memory chips for redundant storage. The Data Vault also contains one USB port used to easily configure the unit and retrieve the data and also utilizes smart firmware that will not write to the flash or FRAM when power drops below 5.3V, ensuring against possibly corrupt data.

Sample of Logged Data

Features:

  • Capable of data logging with 2 digital and 2 analog inputs, plus battery and temperature logging
  • Data logging speed up to 1 log per second
  • Digital inputs have optional on-board pull-ups for contact switches
  • Analog inputs can be either 0-30V, 4-20mA, or type K thermocouples
  • Power terminals for analog inputs to support various sensors
  • Powered by 12Vdc or 24Vdc, with a battery-backed system clock
  • Flash storage for over 0.5 million records (can hold over 1 yr. of data at one log/minute)
  • Redundant, CRC-protected storage to help ensure data integrity and prevent data loss
  • USB flash drive used for configuration and download of data
  • Many configurable items: site names, input names, aliases for digital high/low, analog scaling
  • Configurable to log upon digital input changes, and/or analog input thresholds
  • Can communicate RS232/RS485
  • Pluggable terminal connectors

For in-depth product details, including basic specifications, please click
Data Vault Specs.

RAD-I/O 1500 (Wireless link)

Cordova's RAD-I/Os are a safe and cost-effective alternative to burying traditional hard lines for data transmission at your production site.  Simply, attach the preconfigured "Scout" at the remote communication point, and the preconfigured "Base" at the location you require the signal to be received.  Provide 9-30V DC, or ask about our optional solar and battery packages.

Regardless of the automation on your production site, RAD-I/O can help you monitor your site today!

Typical applications for the RAD-I/O could include:

  • Production tank switches to PLC
  • Production Tank Combustor to PLC
  • Compressor to PLC
  • PLC to Remote Valve Shut/Open
  • Ignition Systems to PLC

For in-depth product details and basic specifications, please click RAD-I/0 Specs.

For the RAD-I/0 installation and operation manual, please click RAD-I/O User Manual

Quad 0 Combustors & Controls

Cordova has partnered with Big Iron Equipment to introduce Quad 0 Certified Enclosed Combustion Units, or ECUs. These ECUs are more than simple combustors. They understand pressures, temperatures, and airflow to ensure complete combustion throughout the designed flow rate. 
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Cordova's line of ignition controls with data logging and GPV-250 Flow Valve monitor and ensure proper operation of your ECU. Pilot flame monitoring, local data logging, temperature & pressure are just a few of the features included with the systems.
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