Kaksitieventtiili

Kaksitieventtiili, also known as a two-way valve, is a type of valve that controls the flow of a fluid in a piping system by opening or closing a passage. It typically consists of a body, a closure element, and a stem. The closure element, such as a ball, plug, or disc, is moved by the stem to either permit or block the flow of the fluid. Two-way valves are characterized by having two ports: an inlet and an outlet.

These valves are widely used in various applications, including heating and cooling systems, water supply networks, and industrial processes. In HVAC systems, they are commonly used to regulate the flow of hot or chilled water to radiators, fan coil units, or air handling units, thereby controlling the temperature of a space. In water distribution, they can be used to isolate sections of the network for maintenance or repair.

The operation of a two-way valve can be manual, electric, pneumatic, or hydraulic. Manual valves are operated by a hand lever or wheel. Automated valves use actuators that respond to signals from a control system, allowing for precise and remote operation. The choice of valve type and material depends on factors such as the fluid being handled, the operating pressure and temperature, and the required flow rate and control characteristics. Common materials for valve bodies include brass, stainless steel, cast iron, and plastic.