Production Flares for Quad O Compliance

We can help you meet the EPA NSPS Subpart 0000 regulations with peace of mind. Production flares, storage tank flares, wellhead flares, tank vent flares, upstream flares—our Quad O solutions are independently tested, EPA certified*, and backed by more than 60 years of combustion leadership and experience.

Call 918-234-2791 (or complete the simple form at the bottom of this page) and we’ll answer any questions you may have, provide a quote, and get you moving toward compliance. There is no obligation at all.

Advantages and Features



  • Smokeless, efficient combustion
  • EPA certified OOOO (Quad-O) enclosed combustors
  • Independently tested and pending EPA certification
  • Guaranteed average CO emissions < 10 ppm
  • VOC destruction exceeds EPA OOOO (Quad-O) requirements
  • THC emissions < 10 ppm
  • No visible emissions
  • Open elevated flares VOC destruction efficiency > 98% (compliant with 40 CFR 60.18)

Reliability and Efficiency

  • Continuous pilot
  • Simple, proven, and reliable design
  • Design option for solar powered ignition panel

Infinite Turndown

  • With use of manual damper operates at 10:1 turndown or greater


Heat Release

  • Designed for low volume and high volume applications

Reliability, Easy Operation

  • Enclosed combustors
  • Natural draft operation, minimal installation
  • Sample ports
  • No visible flame
  • Quiet operation
  • Ideal for urban operations
  • Optional data logging feature
  • Elevated flares
  • Freestanding or optional trailer mounting

Low, Simple Maintenance

  • Quick and easy installation
  • Stainless steel burner

Complete Factory Testing Before Shipment

  • Pilot function test
  • Simulated operating conditions

Reliability Like No Other.

John Zink Hamworthy Combustion is the market leader in superior design and manufacturing of combustion equipment. Our world—class engineers and scientists have unequaled knowledge and unmatched experience to solve any combustion application. Our flare systems have successfully and safely operated around the world for over 60 years in refineries, chemical plants, municipal landfills, and petroleum product loading facilities. Let us prove our reliability to you with quality equipment and on-time delivery. Why take a chance with anyone else?

Enclosed Combustors
Size (feet)
(Diameter x Height)
Maximum Heat Release
2.5 x 15 1.8
4 x 30 10.0
5 x 35 17.0
Elevated Flares
Height (feet) Maximum Flow
15 1.5
20 3.1
30 6.5

1 Based on LHV of 910 BTU/scf


Enclosed Combustor Standard Features


Carbon steel shell Solar panel and battery
Stainless steel burner and ANSI flanged inlet connection Flow meter and flow recorder
6000 V ignition transformer and ignition electrode Flame arrestor thermocouple2
NEMA 4 Ignition Control Panel Booster blower
Continuous pilot with type K thermocouple Finish coat paint
Pilot control system includes pressure regulator, fail closed shutdown valve,
manual block valve and pressure indicator
Knockout vessel
Primer coating NEMA 7 Controls
Two 4 inch diameter sample ports Data Recorder
View port
 Internal thermal blanket refractory2
 Actuated safety valve2
 High temperature shut-off switch2

2 Recommended Safety Components
*EPA certification pending.


Download Quad O Solutions Information Sheet (PDF)

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