ControlAir Authorized Distributor

ControlAir Type 6500 Series High Flow Capacity Volume Booster, 429-841-311, 6500-FAF, 1" NPT, 1:1 Ratio, Aluminum, Feedback Port

SKU: 429-841-311
Made in the United States
$1,123.99 Was: $1,157.05 You Save $33.06
Available to Order
Available Sizes
Port Size1" NPT, 3/4" NPT
Supply Pressure Sensitivity0.3 psig (0.02 bar) for a 100 psi (6.8 bar) change in supply pressure
Body MaterialsAluminium
Ambient Temperature Limits (standard)-40° to 200°F (-40° to 93°C)
Signal Port Size1/4" NPT
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Technical Specifications

General

Exhaust Capacity150 scfm (4, 252 Nl/min)
Signal/Output Ratio1:1
DeadbandLess than 0.2 psig (0.01 bar)
Mounting OptionsIn line, mounting bracket
Part Number429-841-311
OptionsFeedback Port: Yes
BrandControlAir
Manufacturer Part #429-841-311
Size1"
Country of OriginMade in the United States

Materials & Construction

Body MaterialsAluminium
Other MaterialsZing plated steel, nitrile or silicone

Performance

Flow Capacity400 scfm (11,320 Nl/min)
Supply Pressure Sensitivity0.3 psig (0.02 bar) for a 100 psi (6.8 bar) change in supply pressure
Max. Supply Pressure250 psig (17 bar)
Max. Signal Pressure150 psig (10 bar)
Ambient Temperature Limits (low temp option)-62° to 194°F (-52° to 90°C)

Connections

Port Size1" NPT, 3/4" NPT
Signal Port Size1/4" NPT
Exhaust Port Size3/4" NPT
Gauge Port Size1/4" NPT
Maximum Flow/Exhaust Coefficient 3/4" Port (Cv)8.0 / 8.0
Maximum Flow/Exhaust Coefficient 1" Port (Cv)9.0 / 8.0

Dimensions & Weight

Weight6.5 lbs (2.95 kg)

Standards & Certifications

-40° to 200°F (-40° to 93°C)

Overview

ControlAir Type 6500 Series, 6500-FAF High Flow Capacity Volume Booster

Features:

  • Construction: 316 Stainless Steel
  • Porting: 3/4" or 1" NPT
  • Integral Adjustable Bypass Valve: Allows small incremental signal changes without opening the primary valve.
  • High Flow Capacity: For rapid actuator stroking.
  • Soft Valve Seat Design: Provides tight shutoff and eliminates leakage in steady state operation.
  • High Temperature Operation: Up to 200°F (93°C)
  • Tapped High Output Exhaust Port: 3/4" NPT exhaust port relieves 100 scfm (2,830 NL/min)
  • Ports: (2) 1/4" Gauge
  • Optional: Feedback Port
  • Low Temperature Option: Silicone elastomers allow use to -62°F (-52°C)
  • Certified: IEC 61508 SIL 3

Options & Features (See Specification Sheet For Full List):

Rapid Stroke Capability In A Rugged Aluminum Casing

The Type 6500 aluminum volume booster is a high-flow 1:1 signal-to-output pneumatic relay designed to improve the response speed and throttling performance of large pneumatic valve actuators. By significantly increasing air flow capacity, the Type 6500 helps achieve faster stroke times and more precise control in demanding valve automation applications.

Suitable for use with both diaphragm and piston actuators, this aluminum volume booster delivers stable, repeatable performance across a wide range of actuator sizes. A fixed deadband combined with an adjustable bypass valve allows fine downstream pressure adjustments without opening the main booster valve. The bypass adjustment enables precise tuning of the dynamic response, ensuring smooth and stable operation under varying process conditions.