ESBE VLA131 PN16 RP1/2 DN15-4.0 regulating valve 21151100

Regulating valve for precise flow control

This ESBE VLA131 PN16 3-way regulating valve, with a nominal diameter of DN15 and a Rp1/2" connection, is a key component in heating and cooling systems. Designed for mixing and regulating liquid flow, it ensures optimal performance and precision. Made of durable spheroidal graphite cast iron, it guarantees long-term reliability even in demanding conditions.

The VLA131 valve is characterized by an exceptionally low leakage rate, which translates to minimal energy losses and stable operation of the installation. Its design has been optimized for cooperation with ESBE actuators and controllers, enabling easy integration with existing automation systems. A Kvs value of 4 provides adequate flow for various applications.

Construction and practical application

Valves from the VLA100 series, to which this model belongs, are widely used in underfloor heating installations, heating systems with circulation pumps, and cooling applications. Their versatility allows for use in both 2-way and 3-way regulated systems. The constant percentage flow characteristic ensures uniform regulation regardless of pressure changes in the installation.

Thanks to the internal threaded connections (Rp), valve installation is simple and quick. The connection length is 42.5 mm and 58 mm respectively, which facilitates adaptation to existing infrastructure. The valve stroke of 20 mm allows for precise adjustment of the flow to current needs. Surface coating provides additional protection against corrosion and extends the life of the device.

Key features and benefits

• Durable construction: Spheroidal graphite cast iron guarantees resistance to high pressure (PN 16) and long-term operation.

• Precise regulation: Constant percentage flow characteristic ensures stable system operation regardless of pressure changes.

• Low leakage rate: Minimizes energy losses and ensures efficient operation of the installation.

• Compatibility: Ideally cooperates with ESBE actuators and controllers, facilitating integration with automation systems.

• Versatile application: Suitable for heating, cooling systems and underfloor heating - both with 2-way and 3-way regulation.

• Easy installation: Internal threaded connections (Rp) simplify the installation process.

• Chemical resistance: Can be used with heating water compliant with VDI2035 and water-glycol mixtures (up to 50%) and water-ethanol mixtures (up to 28%).