Flow control valves, Page 7002 – Grain Systems PNEG-526 User Manual
Page 110
Page 7002
Flow Control Valves
Series “Q” Gas Control Valves provide the high
capacity and low pressure drop benefits of a butterfly
valve construction, plus an adjustable gradient feature
for accurate fuel flow control.
They are used independently for throttling of fuel
gases and with PREMIX
®
Blower Mixers and
AIRFLO
®
Mixers for stand-by fuel systems, where
they allow change-over to alternate fuels without re-
adjustment.
Series “Q” Valves are UL (Underwriters
Laboratories) listed for use with air, natural gas and
liquefied petroleum gases.
3" Series “Q” Valve
Series “CV” Control Valves incorporate a full-
flow, fixed gradient butterfly valve design for high
capacities at low pressure drops, using minimum
operating torque.
This economical assembly includes a minimum
stop screw and can be supplied with connecting base
and linkage assembly to mount your electric control
operator.
Versions available with UL (Underwriters
Laboratories) listing for air, natural gas and liquefied
petroleum gas service.
Series “BV” Balancing Valves are used to
balance gas or air flows in multiple-burner systems
fed by a common manifold. They feature a full-flow
butterfly design with provision for locking in any
position.
Air Control Valves permit throttling control of air to
burners. They feature a fixed gradient butterfly valve
design with an adjustable minimum stop, friction
brake screw and provision for manual or automatic
operation. Air control valves are offered in 1-1/2"
through 18" pipe sizes.
A complete system using Maxon Flow Control
Valves will typically include burner, gas and/or oil pipe
trains, mixing equipment, pressure blower and a
control panel. Your Maxon representative can help
you choose from the broad range available.
11/90
2" Series “CV” Valve with
optional connecting base
and linkage assembly
2-1/2" Series
“BV” Valve
M-6" Manual Air
Control Valve with
optional Low Fire
Start Switch
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