QED Environmental Systems products

QED Quick-Change Orifice Plate wellheads combine easy orifice plate exchanges for accurate flow control and measurement over a broad flow range. Orifice plates are securely attached to the wellhead for quick access.

QED Quick-Change Orifice Plate wellheads combine easy orifice plate exchanges for accurate flow control and measurement over a broad flow range. The Quick-Change Orifice Plate feature makes it as easy as 1-2-3 for the operator to change to the most appropriate size plate for the given conditions. The accessible plate housing allows for easy confirmation of plate size and placement giving you the highest confidence in your flow reading.

Optimize LFG Control, Accuracy and Dependability with QED Accu-Flo Wellheads. QED Accu-Flo wellheads can help prevent landfill gas migration, emissions and subsurface fires. Landfill owners and operators will appreciate the Accu-Flo design that meets the special equirements of landfill gas recovery for environmental compliance and energy production. Easy installation and maintenance of the Accu-Flo wellheads help to maximize gas recovery while minimizing surface emissions and subsurface migration. The pitot tube wellhead design is available with a standard gate valve or with our Exact-Flo control valve. The Exact-Flo valve represents a new generation of flow control devices. The conical tip design provides more linear flow adjustment positions than conventional valves, giving you increased control. The Accu-Flo wellhead features quick-connect measurement ports designed to work most efficiently with our GEM gas analyzers.

The Easy Bolt clamping force far exceeds the requirements for sealing 6" and 8" landfill gas well flanges. In most cases, no more than four bolts are needed to provide the required force in these applications.

Unmatched range of connector fittings to make installation and maintenance easier and more efficient. Hundreds of wellhead cap and flange combinations are available from QED on a standard and custom basis to fit site needs and ease installation and service. Common features include quick-connect fittings, sealing versions for use with vacuum extraction, well access ports for level or other uses, and means for adjusting the pump level. Our cap assemblies are based on our 20 years of experience and thousands of installations, call QED for more detailed information and guidance on the best cap choice for your project.

Hundreds of wellhead cap and flange combinations are available from QED on a standard and custom basis to fit site needs and ease installation and service.

Winter weather can cause many problems for landfill operators and landfill gas technicians. Sub-zero temperatures and harsh winds can lead to freezing condensation in wellheads and landfill gas hoses; affecting your gas extraction levels, slowing you down and costing you money.

The QED Precision Level Reader (PLR) is the most accurate, safest and efficient method for determining leachate and/or condensate levels in gas wells. Accurate, Safe and Efficient Liquid Levels Levels are detected within seconds and are recorded with a time, date and location stamp, with no need to interrupt vacuum in the well. Using a permanently installed weight and tube, the PLR engages a micro-compressor and differential sensors to determine a water level reading that is never affected by foam and will not cross-contaminate from well to well.

Eliminate Well Bore Gas Leaks, Air Intrusion and Underground Fires Prevent Common Regulatory Emissions Violations with Membrane Seal Landfill well casing and wellbore can be a significant source of surface gas leaks and air intrusion. These potential problems frequently result from landfill settlement around well casings and cracking along the well bore.