Model 200XLR Pneumatic Volume Booster
Features
• The Model 200XLR Pneumatic Volume
B ooster produces a pneumatic signal in a
1:1 ratio. It is ideally suited for systems that
require input isolation or increased forward
and exhaust flow capacities.
• Control sensitivity to 1" water column variation
• Large supply and Exhaust Valves provide
high forward and exhaust flows
• An Aspirator Tube minimizes downstream
pressure droop under flow conditions.
C • A separate Control Chamber isolates the
d i a p h ragm from the main flow to eliminate
Model hunting and buzzing
200
XLR
• Optional Increased Sensitivity configuration
with larger Control Diaphragm for more
precision control at low setpoints.
Operating Principles
When signal pressure on the top of the
signal Diaphragm creates a dow n ward force
on the Diaphragm Assembly, the Supply
Valve opens. Output pressure flows through
the Outlet Port and the Aspirator Tube to the
Control Chamber to create an upward force
on the bottom of the Control Diaphragm.
When the setpoint is reached, the down-
ward force of the signal pressure that acts
on the top of the Signal Diaphragm bal-
ances with the upward force of the output
pressure that acts on the bottom of the
Control Diaphragm.
When the output pressure increases above
the signal pressure, the Diaphragm
Assembly moves upward to close the
Supply Valve and open the Exhaust Valve.
Excess output pressure exhausts through
the Exhaust Port until it reaches the setpoint.
Shown with Increased Sensitivity Option (L)
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Model 200XLR Pneumatic Volume Booster
Specifications Catalog Information
Flow Capacity (SCFM) Catalog Number 2001 XLR
In excess of 1500 (2550 m3/hr) @ 100 psig, [7.0 BAR],
(700 kPa) supply and 20 psig, [1.5 BAR], (1500 kPa) set- Pipe Size
point 1 1/2" NPT. . . . . . . . . . . . . . . . . . . . . . . . . 12
Exhaust Capacity (SCFM)
325 (552.5 m3/hr) where downstream pressure is 5 psig, Options
[.35 BAR], (35 kPa) above 20 psig, [1.5 BAR], (150 kPa)
Fluorocarbon (Viton) Elastomers . . . . . . . . . . . . . . . . . . . . . . J
setpoint
Increased Sensitivity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .L
Supply Pressure
250 psig, [17.0 BAR], (1700 kPa) Maximum (for more precision control at low setpoints)
Supply Pressure Effect
Less than 0.5 psig, [.03 BAR], (3.4 kPa) for 100 psig,
[7.0 BAR], (700 kPa) change in supply pressure Installation
Signal or Output Pressure
150 psig, [10.0 BAR], (1000 kPa) Maximum
For installation instructions, refer to the Fairchild Model 200XLR
Pneumatic Volume Booster Installation, Operation and
Maintenance Instructions, IS-20200XLR.
C
Model
Sensitivity 200
1" (2.54 cm) Water Column XLR
Ambient Temperature
-40°F to +200° F, (-40°C to +93° C)
Materials of Construction
Body and Housing . . . . . . . . . . . . . . . . Die Cast Aluminum
Trim. . . . . . . . . . . . . . . . Stainless Steel, Brass, Aluminum,
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . and Zinc Plated Steel
Diaphragms . . . . . . . . . . . . . . . . . . . . . . . Nitrile on Dacron
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