Description
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 air flow requirements
up to 468 CFM (221 L/s). All DG model mixers reduce air flow 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.
SPECIFICATIONS
Fuel Type …………………………………… LPG Vapor, Natural Gas and Digester/Landfill Gas
(550-2,500 BTU)
Inlet Pressure ……………………………… -1.5” w.c. (-0.37 kPa)
Operating Temperature ………………… -40°F to +250°F (-40°C to +121°C)
Mounting Position ………………………… Vertical
Diaphragm Material ……………………… Hydrin (Standard), Silicone (Optional)
HP/kW ……………………………………….. 292 hp (217.7kW) @ 468 CFM (221 L/s) and 2,500 BTU per cubic foot with 2.0” in Hg manifold depression
