The Siemens Building Technologies division is adding pressure-compensated valves to its proven Acvatix product line. These valves require much less positioning force than conventional valves and permit high operating differential pressures. The pressure-compensated valves are available in the nominal pressure classes PN 16 and PN 25.

“With the new pressure-compensated Acvatix models, the Siemens Building Technologies division is launching valves that generate back pressure within the valve body and therefore require less positioning force to regulate flow. This makes it possible to use actuators with a lower positioning force, which has a positive effect on procurement costs,” Siemens said.

Compared to conventional valves, the pressure-compensated models have a much higher closing pressure and therefore permit high operating differential pressures. As a result, they are particularly suitable for applications such as district heating systems and steam networks. The pressure-compensated Acvatix models are available in the nominal pressure classes PN 16 and PN 25 and can be used universally.”

Like all valves of the new Acvatix generation, the pressure-compensated models have an optimised flow design that permits up to 30 per cent higher flow coefficients (kvs) with the same nominal width (DN). The use of smaller valves with the same kvs value saves money in existing and new installations. At the same time, the optimised flow design reduces dead zones, which also lowers costs and increases energy efficiency. In addition, reducing the size of the deflection zone within the valve decreases unwanted noise in the hydraulic system.