The SMC KT-VBA43A-1 is an air-operated booster regulator designed to amplify air pressure without requiring an external power source. As part of SMC's VBA series, this model specializes in doubling input pressure (up to 2:1 ratio) to meet localized high-pressure demands in industrial settings. Its compact design allows direct connection to air tanks, making it suitable for applications requiring intermittent high-pressure bursts while optimizing space efficiency.

Technical Specifications

The KT-VBA43A-1 operates with a maximum input pressure of 1.6 MPa and features 1/2-inch Rc threaded ports for input, output, and exhaust. Constructed with a copper body and stainless steel/aluminum internal components, it ensures durability and corrosion resistance. The regulator supports an ambient temperature range of 2–50°C (non-freezing) and weighs 0.84 kg. Its flow capacity reaches 230 L/min (ANR), with manual pressure adjustment via a handle equipped with a 2-stage lock mechanism. Safety features include a pressure relief valve and overpressure protection rated for 3 MPa proof pressure.

Key Features

Pressure Amplification: Doubles input pressure (e.g., 0.5 MPa input becomes 1.0 MPa output).

Compact Design: Direct tank connectivity minimizes installation footprint.

Manual Control: Adjustable outlet pressure with a locking handle for precise settings.

Durability: Copper construction and 2.4 MPa proof pressure rating enhance longevity.

Versatility: Suitable for temperatures between 2–50°C, with horizontal mounting only.

Non-Lubricated: Eliminates the need for additional lubrication.

Noise Reduction: Compatible with optional silencers for quieter operation.

Applications

The KT-VBA43A-1 is widely used in industrial sectors requiring localized pressure boosting:

Pneumatic Tools: Powers high-pressure air tools like grippers, spray guns, and impact wrenches.

Automated Systems: Pressurizes clamps, cylinders, and valves in robotics and assembly lines.

Leak Testing: Provides intermittent high-pressure bursts for quality control in manufacturing.

Packaging Machinery: Operates sealing or cutting units needing elevated pressure.

Energy Efficiency: Reduces overall air consumption by limiting high-pressure use to critical processes.

Technical Notes & Certifications

Installation: Must be mounted horizontally using 4 M10 bolts (24 Nm torque).

Maintenance: Daily condensation drainage from filters/tanks is recommended for optimal performance.

Safety: Avoid exposure to vibration or direct sunlight; use only with compressed air.

Certifications: Complies with ATEX directives (II 3G Ex h IIB T6 Gc) for hazardous environments and RoHS standards for environmental safety.