Model 200XLR Volume Booster from Rotork Fairchild

Rotork Fairchild Model 200XLR Volume BoosterBased on the Model 200 valve body, the Model 200XLR Volume Booster couples two identical units to obtain ultra-high flow capacity in both forward and exhaust modes. As a pilot-operated regulator design, the M200 is designed for high supply pressures and features ultra-high flow capacity.

 

Operating Principles

When signal pressure on the top of the signal Diaphragm creates a downward Rotork Fairchild Model M200XLR Volume Boosterforce 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 downward force of the signal pressure that acts on the top of the Signal Diaphragm balances 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.

Features

Model 200XLR Volume Booster Features

  • The Model 200XLR Pneumatic Volume Booster 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.
  • A separate Control Chamber isolates the diaphragm from the main flow to eliminate hunting and buzzing.
  • Optional Increased Sensitivity configuration with a larger Control Diaphragm for more precision control at low setpoints.

Specifications

Model 200XLR Volume Booster Specifications

  • Flow Capacity (SCFM): In excess of 1500 (2550 m3/hr) @ 100 psig, [7.0 BAR],(700 kPa) supply and 20 psig, [1.5 BAR], (1500 kPa) set-point
  • Exhaust Capacity (SCFM): 325 (552.5 m3/hr) where downstream pressure is 5 psig, [.35 BAR], (35 kPa) above 20 psig, [1.5 BAR], (150 kPa) setpoint
  • Supply Pressure: 250 psig, [17.0 BAR], (1700 kPa) Maximum
  • 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
  • Signal or Output Pressure: 150 psig, [10.0 BAR], (1000 kPa) Maximum
  • Sensitivity: 1" (2.54 cm) Water Column
  • 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

Dimensions

Model 200XLR Volume Booster Dimensions
 

Rotork Fairchild 200XLR Volume Booster Outline Dimensions

Q & A

Q&A Section with Expand/Collapse Icons

Model 200XLR Volume Booster Q & A

+ What are the key performance specs and flow capacity of the Fairchild Model 200XLR?
The Fairchild Model 200XLR is an ultra-high-flow pneumatic volume booster designed for precise pressure control in demanding industrial environments. It delivers approximately 1,800 SCFM (3,058 m3/hr) of flow in both forward and exhaust directions, supports supply pressures up to 250 psig (17 bar), and offers a Cv of about 18 for fast response and high accuracy. With a rugged aluminum body, stainless steel and brass trim, and an operating range from -40 °F to +200 °F, the 200XLR performs reliably in harsh conditions. This makes it ideal for large valve actuators and control systems in oil and gas, power generation, and water treatment applications across North America and Europe.
 
+ How do I know if the 200XLR is the right size for my application?
The Fairchild 200XLR is best suited for systems that require very high air or gas flow and fast actuator response. If your system operates near 1,800 SCFM or uses large pneumatic valves, this model provides the capacity and sensitivity you need. It supports supply pressures up to 250 psig and output pressures around 150 psig, with 1?-inch NPT ports for high-volume lines. The optional “L” version offers enhanced control sensitivity for fine-tuned applications. However, for smaller systems or moderate flow requirements, a lower-capacity model such as the Fairchild 200 may be more practical and cost-effective. For buyers in the U.S., Canada, or the EU, confirming pressure ratings, port sizes, and certification requirements with your regional Rotork distributor ensures optimal sizing and performance.
+ What are the installation and maintenance requirements?

Proper installation and maintenance are essential to maximize the life and accuracy of the Fairchild 200XLR. The booster should be mounted according to the manufacturer’s manual and connected with clean, dry, and filtered air to prevent internal contamination or diaphragm damage. Its high exhaust capacity requires correctly sized venting to avoid back pressure during operation. Regular inspections for wear, debris, or diaphragm degradation will help maintain performance, and genuine Fairchild service kits are available throughout North America and Europe for easy maintenance. Ensuring that the unit operates within its specified temperature range and environmental limits will further enhance reliability in industrial facilities.

 
+ How does the 200XLR compare in cost and overall value?
Although the Fairchild 200XLR carries a higher upfront cost than smaller volume boosters, it delivers exceptional long-term value through its high flow capacity, quick response, and durable design. Its ability to significantly reduce valve actuation time and improve control precision can lead to greater process efficiency and lower operational downtime. While installation may require larger piping and increased air consumption, the overall reliability and performance benefits typically offset these costs over the equipment’s lifespan. Buyers in North America and Europe also benefit from Rotork’s extensive support network, ensuring fast access to spare parts and technical assistance, which helps maintain a low total cost of ownership. 
 
 
+ What compatibility or integration factors should I check before purchase?
The Model 200XLR integrates seamlessly with most industrial pneumatic control systems, including those using standard 3–15 psi (0.2–1 bar) signal ranges. It pairs effectively with smart valve positioners and advanced control loops that demand rapid response and stable output. Large 1?-inch NPT ports make it compatible with high-volume piping systems, and certifications such as CE, CSA, and ATEX ensure compliance for installations across the U.S., Canada, Europe, and other regulated regions. For best results, confirm that your system’s control signals, port sizes, and environmental requirements align with the 200XLR’s specifications, and verify regional support availability through authorized Rotork service centers.
 


 

Downloads

Download Rotork Fairchild Model 200XLR Pneumatic Volume Booster Datasheet

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