Pressure reducer (definition)

Pressure reducer — is a device designed to reduce and stabilize the pressure of liquid or gas in a system to a certain level, which is safe and optimal for the operation of equipment or system components. In heating systems, pressure reducers are used to regulate the pressure of the coolant, prevent damage pipelines, fittings and other elements of the system.

The main functions of the pressure reducer:

1. Reducing pressure:
   • Description: The reducer reduces the pressure of the incoming coolant to a pre-set level. This is important to prevent excess pressure, which can cause leaks, damage to pipes and equipment.
2. Pressure stabilization:
   • Description: The device maintains a constant outlet pressure, regardless of changes in inlet pressure. This ensures stable operation of the heating system, improving its efficiency and extending the service life of its components.
3. System protection:
   • Description: The pressure reducer protects the system from sudden pressure surges that can occur, for example, when starting pumps or when temperature conditions change.

Design and operating principle:

• Frame: Typically made of brass, stainless steel or other corrosion-resistant materials to ensure the durability of the device.
• Membrane: Inside the pressure reducer there is a membrane, which is responsible for regulating the pressure. When the inlet pressure exceeds the set value, the membrane is compressed, closing the valve and reducing the flow of the coolant.
• Valve: The valve inside the reducer opens and closes depending on the pressure in the system, ensuring that a set pressure level is maintained at the outlet.
• Adjusting screw: Many pressure reducers are equipped with a screw for manual adjustment of the outlet pressure, which allows you to adapt the operation of the device to the specific conditions of the heating system.

Application in heating systems:

• Boiler and fittings protection: The pressure reducer prevents too much pressure from entering the boiler and other sensitive system components, reducing the risk of damage and leaks.
• High Flow Water Systems: In multi-storey buildings or centrally heated systems where the inlet pressure may be significantly higher than optimum, a pressure reducer is essential for protection and stable operation of the system.
• Integrated heating systems: In multi-circuit systems where different temperature and pressure conditions are used, reducers help ensure uniform pressure distribution across all circuits.

Advantages:

• Safety: Provides protection against high pressure emergencies.
• Durability: Extends the life of the heating system and its components.
• Saving resources: Reduces the likelihood of leaks and losses of coolant, which reduces operating costs.

The pressure reducer is an important element in the heating system, especially in cases where equipment protection and stability of operation under variable operating conditions are required.