The Model 200D is a dual diaphragm air-valve carburetor/ fuel mixer. It offers a 90° air inlet to provide low overhead clearance, and is available with several Air Horn and throttle valve options. This unit is available for LPG Vapor, Natural Gas, Digester/Landfill Gas applications as low as 500 BTU for with airflow requirements up to 468 CFM (221 L/s). All DG model mixers reduce airflow by 30%.
The Model 200D is also available for feedback applications with the ’FB’ designation, and offers tamper resistant compliance using the optional tamper resistant mixture adjustment caps. The 200D mixer provides a convenient 1/4” balance port at the air inlet, and a slow speed “idle” adjustment. Additional low speed idle mixture control can be obtained to lean air/fuel mixtures through the use of optional shims. The valve can be turned with an imperial 5/16” or metric 8mm hex key from both sides and can be made tamper resistant by using a cap to comply with tamper resistant emission regulations by using Tamper Resistant Plug, part number P3-17956-20, purchased separately.