AIR VOLUME BOOSTER
AVB-2000 — Air Volume Booster for Large Actuators
Introduction
The AVB-2000 is our mid-range air volume booster — designed to accelerate the pneumatic stroke of large actuators when a positioner alone cannot deliver enough air flow. Volume boosters are essential on emergency shutdown (ESD) valves with one- to two-second stroke requirements, compressor anti-surge valves, and any large-bore valve where stroke time is measured in seconds. The AVB-2000 delivers high-flow output, accurate input tracking, and a built-in bypass needle valve for fine-tuning system stability.
AVB - 2000
AVB - 2100
Features
High flow capacity — accelerates stroke of large actuators that positioners alone cannot drive
- Input pressure tracking with 1:1 output ratio
- Built-in bypass needle valve for stability tuning
- Aluminum die-cast body, stainless steel internals
- Rugged construction for outdoor and industrial service
- Wide supply pressure range up to 10 bar (150 psi)
- Easily mounted between positioner output and actuator inlet
- Wide operating temperature range
Options
NPT 1/2 threaded exhaust ports
Supply pressure gauge port
High temperature: -20°C – +120°C
Low temperature: -40°C – +80°C
Specifications
When to specify a volume booster
Specify a volume booster when actuator displacement volume divided by positioner output Cv exceeds the required stroke time. Typical triggers:
- Pneumatic actuator volume greater than approximately 500 cubic inches (8 liters)
- Required stroke time of 2 seconds or less for ESD service
- Required stroke time of 5 seconds or less for anti-surge service
- Large scotch-yoke pneumatic actuators on pipeline ball valves 8″ and larger
- Large piston actuators on butterfly valves above 24″
- Any application where the positioner-only stroke time exceeds the process requirement
Typical applications
- Emergency shutdown (ESD) valves with 1–2 second stroke time requirements
- Compressor anti-surge valves on recycle lines
- Large scotch-yoke pneumatic actuators on pipeline ball valves 8″+
- Large globe and butterfly control valves with piston or cylinder actuators
- Blowdown valves on pressurized vessels
- Combustion-air and flue-gas damper valves on boilers and furnaces
- Any modulating control valve where positioner-alone stroke time is unacceptable
Variants & options
- Body material: aluminum die-cast (standard); other materials on request
- Port size: ½” NPT (standard); other sizes available — contact Archer
- Bypass orifice: factory-set; field-adjustable
Other models in this family
- AVB-1000 — smaller actuators, lower flow
- AVB-3000 — largest actuators, highest flow capacity
Downloads
- AVB-2000 Datasheet (PDF)
- AVB-1000 Manual (PDF — applies to all AVB models for installation principles)
- AVB-2000 Approval Drawing (PDF)
Not sure which AVB model is right for your actuator?
Send us your actuator make, model, volume, and required stroke time — we’ll calculate the right booster size for your application and confirm availability.