Product Overview
The Siemens VAI61.50-40 is a 2-port ball valve from the Siemens VAI61 series, engineered for precise shut-off and control of fluids in industrial process and pneumatic systems. Featuring a 40 mm nominal diameter (DN40) and a robust brass or nickel-plated brass body, this valve operates on a quarter-turn rotary principle, ensuring rapid and reliable isolation with minimal pressure loss. Its floating ball design and PTFE seats provide bubble-tight sealing in both directions, making it an ideal component for building automation, HVAC, and general industrial fluid handling where dependable performance and long service life are critical.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | 2-Port Ball Valve (Process & Pneumatic Valve) |
| Model Designation | VAI61.50-40 |
| Nominal Diameter | DN40 (1 1/2″) |
| Operating Pressure | Up to 16 bar (PN16) for standard industrial service |
| Mounting & Connection | Threaded (G 1 1/2″ female) or flanged per ISO 228 / manufacturer interface |
| Body Material | Nickel-plated brass (standard) or dezincification-resistant brass |
| Seat & Seal Material | PTFE / EPDM (media-dependent) |
| Actuation | Manual lever handle (standard); compatible with electric or pneumatic actuators |
| Temperature Range | -10 °C to +120 °C (depending on seal material) |
Engineering Features & Advantages
- Precision Performance: Quarter-turn operation with low torque requirements ensures fast, accurate shut-off and minimal flow resistance, reducing energy consumption in process loops.
- Industrial Reliability: Built for continuous operation under severe industrial conditions, with a robust brass body and PTFE seats that resist wear, corrosion, and chemical attack.
- Direct Fit Replacement: Exact dimensional and functional compatibility with original Siemens VAI61 series valves and standard ISO mounting interfaces, allowing drop-in replacement without piping modifications.
- Bubble-Tight Sealing: Floating ball design with dual-direction sealing guarantees zero leakage, meeting stringent industrial safety and environmental standards.
- Actuator Ready: Integrated ISO 5211 mounting pad enables straightforward automation with electric or pneumatic actuators for remote or automated control.
Typical Industrial Applications
The Siemens VAI61.50-40 2-port ball valve is widely deployed in building automation and HVAC systems for chilled water, hot water,
PRODUCT IMAGES
SIEMENS VAI61.50-40 2-Port Ball 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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- Peace of Mind: Covered by our 12-Month Replacement Warranty.
Shop the genuine SIEMENS VAI61.50-40 Zone Valve Actuator. This Germany-made 230V AC hydraulic component features a 2-way normally closed design, delivering leak-free, reliable fluid control for heavy-duty industrial systems.