Product Overview
The SMC VSA4240-04 is a pneumatically actuated process valve from the SMC VSA4000 series, engineered for precise control of compressed air and neutral gas media in industrial automation systems. This air operated valve utilizes an external pilot air signal to shift an internal spool mechanism, delivering reliable on/off flow control without the need for electrical solenoids at the valve body. With a 1/2 inch port configuration, the VSA4240-04 is designed for panel or inline mounting in pneumatic circuits requiring dependable, repeatable actuation. Its balanced spool design ensures consistent shifting force regardless of supply pressure fluctuations, making it a preferred choice for demanding process control environments where electrical actuation is impractical or undesirable.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Air Operated Process & Pneumatic Valve |
| Model Designation | VSA4240-04 |
| Series | SMC VSA4000 Series |
| Port Size | 1/2 (04) — Rc/NPT/G Thread per configuration |
| Actuation Type | External Air Pilot Operated (Air-to-Air) |
| Valve Function | 5/2 Spool Valve Configuration |
| Operating Pressure | 0.1 to 0.9 MPa (1 to 9 bar) — Standard Industrial Grade |
| Pilot Pressure Range | 0.2 to 0.9 MPa (2 to 9 bar) |
| Proof Pressure | 1.35 MPa (13.5 bar) |
| Ambient / Fluid Temperature | -5°C to +60°C (no freezing) |
| Mounting & Connection | Inline / Manifold Mount — Standard SMC Interface |
| Body Material | Aluminum Alloy (Corrosion-Resistant) |
Engineering Features & Advantages
- Precision Performance: The air operated process & pneumatic valve delivers precise, repeatable performance with low hysteresis and stable control across the full working range.
- Industrial Reliability: Designed for dependable long-term operation in demanding industrial environments, with quality bearings and sealing systems ensuring extended maintenance intervals.
- Direct Fit Replacement: Exact dimensional and functional compatibility with original SMC standards, allowing straightforward retrofit into existing hydraulic systems without rework.
- Rated Capability: Rated for pressure ratings of 0.1 to 0.9 MPa (1 to 9 bar) — Standard Industrial Grade, supporting stable operation across the full working range.
Typical Industrial Applications
The SMC VSA4240-04 is a pneumatically actuated process valve from the SMC VSA4000 series, engineered for precise control of compressed air and neutral gas media in industrial automation systems.
PRODUCT IMAGES


SMC VSA4240-04 Air Operated Valve
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- Authentic & Fully Tested: 100% bench tested for hydraulic response, pressure rating, and null-bias stability before dispatch.
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- Pre-Shipment Verification: High-definition photos, video testing runs, and serial number verification provided prior to shipment.
- Peace of Mind: Covered by our 12-Month Replacement Warranty.
Shop the genuine SMC VSA4240-04 Solenoid Valve. This Japan-made 24V DC hydraulic component features a 4/2-way solenoid actuated design, delivering leak-free, reliable fluid control for heavy-duty industrial systems.