Product Overview

The Siemens VXG41.1501 is an Acvatix three-port seat valve for hydronic heating, ventilation and air-conditioning circuits. Its DN15 body, PN16 pressure rating and kvs 4.0 flow coefficient provide a compact control element for small water-side branches.

This exact .1501 variant is distinguished by its tight bypass. The valve is supplied as a valve body and must be matched to a compatible Siemens actuator and the correct externally threaded pipe fittings for the installed application.

Commercial Status

Verified Technical Data

System Fit and Applications

Compatibility and Procurement Checks

• Confirm the complete identifier VXG41.1501 / BPZ:VXG41.1501; nearby VXG41 variants use different sizes or flow coefficients.
• Verify DN15 pipe size, PN16 pressure class, externally threaded fittings and available installation space.
• Match the selected Siemens actuator to the valve family, required control signal, supply voltage and fail-safe needs.
• Check the intended three-port hydraulic arrangement and confirm that the tight-bypass .1501 variant is required.
• Inspect the existing valve, actuator coupling, stem condition and piping orientation before ordering a replacement.

Lifecycle Note

Siemens lists the exact VXG41.1501 stock number in a valid official data sheet and in its current catalog. The reviewed official sources do not display an exact PLM lifecycle term, so this page does not label the valve Active, Classic, Obsolete or Discontinued. Confirm current availability and the compatible actuator at order time.

Frequently Asked Questions