Check valve - 1/2 "Mx3/8 "M IVAR.VARIA ZK

Product detailed description

This check valve is commonly used in heating and plumbing systems to ensure unidirectional flow of fluids. It is suitable for installation in residential and commercial buildings, including underfloor heating systems, central heating circuits, and domestic hot water lines. The valve is designed to be installed in positions where backflow could cause damage or inefficiency, such as in pump discharge lines or between zones with different pressure levels. It is intended for use by professional installers and service technicians who require reliable flow control in closed-loop systems.

Correct installation and sizing are essential to ensure the valve functions as intended. The valve must be positioned with the flow direction indicated on the body to prevent improper operation. It is not suitable for applications involving aggressive media or high-temperature steam. The nominal pressure and temperature ratings must be verified against the system conditions to ensure compatibility and long-term performance.

Technical parameters

Material	Brass CW617N
Operating temperature	+120 °C
Nominal pressure	PN 10
Code	I00402080
Brand	IVAR

The nominal pressure rating of PN 10 indicates the valve is suitable for systems operating at up to 10 bar. The maximum operating temperature of +120°C means it is appropriate for hot water and heating systems. These parameters are essential for determining the valve’s suitability for a specific application and ensuring it can withstand the system’s operating conditions without failure.Installation and connection The valve is connected using 1/2 inch male external thread on one end and 3/8 inch female internal thread on the other. Installers should ensure that the threads are clean and free from debris before tightening. A sealing compound or thread tape may be applied to prevent leaks. The valve must be installed in the correct orientation, with the flow direction marked on the body. Common installation errors include incorrect orientation, over-tightening of the threads, or using the valve in a system with higher pressure or temperature than specified. After installation, the system should be tested for leaks and proper operation.Compatibility and accessories This check valve is compatible with standard heating and plumbing systems that use threaded connections. It can be used in conjunction with other IVAR valves and fittings of similar thread sizes. No additional accessories are required for standard installation. However, if the system includes non-standard pipe configurations or requires insulation, appropriate sealing materials or insulation should be selected accordingly.Technical background for designers The valve operates by allowing fluid to flow in one direction and closing automatically when reverse flow is detected. The brass CW617N body provides good corrosion resistance and mechanical strength, making it suitable for use in hot water and heating systems. The internal components are designed to respond quickly to flow changes, ensuring reliable operation. The valve’s performance is influenced by the system’s pressure and temperature levels, as well as the cleanliness of the fluid. Regular maintenance and periodic inspections are recommended to ensure continued efficiency and longevity.Service and operation The valve requires minimal maintenance under normal operating conditions. However, periodic inspections are recommended to check for signs of wear, corrosion, or blockage. The system should be tested for leaks and proper operation during routine maintenance. If the valve shows signs of failure or reduced performance, it should be replaced. No specific service intervals are provided in the technical data.Frequently asked questions

Can this valve be used in a domestic hot water system?
Yes, the valve is suitable for domestic hot water systems with a maximum operating temperature of +120°C and a nominal pressure of PN 10.

Is it compatible with copper or plastic piping?
Yes, the valve can be connected to copper or plastic piping using the appropriate threaded fittings. Ensure the threads are properly sealed.

Can it be installed vertically or horizontally?
Yes, the valve can be installed in either orientation. However, the flow direction must be followed as indicated on the body.

Can it be used in a system with a temperature above 120°C?
No, the valve is rated for a maximum operating temperature of +120°C. Exceeding this temperature may cause material degradation and failure.