Ball valve water DN 20 WK 4a 1.6 - 4.0 MPa APA02010040030

Application and Scope of Work in Industrial Installations

This DN 20 block ball valve has been designed for operation in demanding conditions where tightness and resistance to high pressure are critical. The device is suitable for district heating networks, water supply systems, and air conditioning systems. Thanks to its design adapted for fluids of Group 2 (in accordance with Directive 97/23/EC), it can be used not only for water but also for oils and other media that do not react chemically with carbon steel.

The operating temperature range is wide – from -20°C to +200°C, allowing installation in high-temperature heating circuits and cooling systems. The working pressure (PS) ranges from 16 to 40 bar (1.6 – 4.0 MPa), making it a suitable component for circuits where standard fittings cannot withstand high hydraulic loads.

Construction, Installation, and Adaptation Options

As a block-type ball valve, this model features a compact design that facilitates installation in tight technical spaces. It is standardly equipped with a handle, enabling quick and intuitive control of medium flow via a 90-degree rotation. For installers working at hard-to-reach points or requiring high torque for opening/closing, the manufacturer provides options for adapting the fitting:

• Worm gear version – facilitates operation at large diameters or high pressures without the need for significant manual force.
• Preparation for actuator drive – enables automation of flow control in remote systems.

It is worth noting compliance with the PN-EN 12266-1 standard, which regulates testing methods for tightness of industrial fittings. This means the product has undergone rigorous tests for internal and external leakage, which is crucial for the safety of the entire installation. The manufacturer also provides a 2-year warranty, confirming confidence in the durability of the materials used in production (carbon steel).

Summary of Key Technical Features

By choosing this valve, you obtain an element with a proven block construction that effectively isolates flow in industrial and municipal installations. Key parameters of this model include the nominal diameter DN 20 and a wide working pressure range from 16 to 40 bar (1.6 – 4.0 MPa). The device operates safely at temperatures from -20°C up to +200°C, handling media such as water or oils (Group 2 fluids). Compliance with the PN-EN 12266-1 standard guarantees high tightness, and standard handle operation can be replaced with a worm gear or actuator drive to facilitate installation and operation. The entire product is covered by a 2-year warranty.