Check valve EURA heavy - 6/4 "FF; Kv 9,60 FIV.08018

Product detailed description

Heavy duty check valves are essential in systems where unidirectional flow must be maintained, particularly in heating and pump installations. These valves prevent backflow that could disrupt system efficiency or damage components. The IVAR EURA model is commonly used in residential and commercial heating systems, irrigation setups, and pump circuits where flow reversal could lead to inefficiencies or equipment failure. Installers often encounter these valves in systems where pressure fluctuations are common, and reliable sealing is required to maintain system integrity.

Correct valve selection is crucial to ensure compatibility with the system’s hydraulic and thermal conditions. The IVAR EURA heavy duty check valve is designed for use in environments with moderate thermal loads and where the media is non-aggressive. It is suitable for applications where the system pressure does not exceed PN 15 and the operating temperature remains below +90°C. The valve’s polymer orifice ensures a tight seal and reduces wear, making it ideal for long-term installations.

Technical parameters

Material	Brass CW617N
Operating temperature	+90 °C
Nominal pressure	PN 15
Opening overpressure	0.02 bar
Code	I08018112
Brand	IVAR

The valve’s PN 15 rating indicates it is suitable for systems operating at up to 15 bar. The maximum operating temperature of +90°C makes it suitable for hot water and heating circuits. The opening overpressure of 0.02 bar ensures the valve opens at minimal pressure differentials, which is important for maintaining flow efficiency. The Kv value of 9.60 is a key factor in sizing the valve to match the required flow rate in the system.

Installation and connection

The IVAR EURA heavy duty check valve is designed for internal FF (female flange) connections. Installers should ensure that the mating flanges are clean and free from debris to prevent leaks. The valve must be installed in the correct orientation, with the flow direction indicated on the body. Common installation errors include incorrect orientation, which can lead to improper sealing and flow issues. It is also important to verify that the system pressure does not exceed the valve’s PN 15 rating and that the temperature remains within the specified range. A torque wrench should be used to tighten the flange bolts evenly to avoid warping the flange faces.

Compatibility and accessories

This valve is compatible with standard heating and pump systems that use internal FF connections. It is typically used in conjunction with pumps, circulation systems, and heat exchangers. When installing, ensure that the system includes appropriate pressure relief and temperature control components. No additional accessories are required for basic installation, but system-specific components such as filters or pressure regulators may be necessary depending on the application.

Technical background for designers

The IVAR EURA heavy duty check valve operates on a simple principle: the flow of media opens the valve, and the absence of forward flow allows the internal mechanism to close and seal the passage. The brass CW617N body provides good corrosion resistance and mechanical strength, making it suitable for long-term use in heating and pump systems. The polymer orifice ensures a tight seal and reduces wear from repeated opening and closing. The valve’s performance is influenced by the media’s viscosity, temperature, and the system’s pressure dynamics. Proper sizing based on the Kv value and system flow requirements is essential to ensure optimal efficiency and longevity.

Service and operation

The valve requires minimal maintenance due to its robust design and durable materials. However, periodic visual inspections are recommended to check for signs of wear, corrosion, or leakage. If the valve fails to open or close properly, it may indicate a blockage or damage to the internal components. No specific service intervals are provided in the technical data, but any performance issues should be addressed promptly to avoid system disruptions. The valve should be removed and inspected if it is suspected of being damaged or if it fails to function as expected.

Frequently asked questions

Can the IVAR EURA heavy duty check valve be used in drinking water systems?
Yes, the valve is certified for use in drinking water systems and complies with relevant standards.

Is the valve suitable for use in high-temperature environments?
No, the maximum operating temperature is +90°C. Exceeding this may affect the valve’s performance and integrity.

Can the valve be installed in a vertical orientation?
Yes, as long as the flow direction is maintained and the flange connections are properly aligned and tightened.

What is the minimum pressure required for the valve to open?
The valve opens at a minimum overpressure of 0.02 bar, ensuring it responds to low-pressure differentials effectively.