Pressure Reducing Valve - with fitting - 5/4" FF FIV.08026

Product detailed description

Pressure reducing valves are essential in systems where the supply pressure exceeds the required operating pressure for downstream components. This applies to central heating systems, domestic hot water circuits, and industrial process lines where overpressure could damage equipment or reduce efficiency. Installers working on residential, commercial or industrial projects often encounter the need to regulate pressure to ensure safe and stable operation of radiators, boilers, heat exchangers and other sensitive components. The IVAR model I08026114 is designed for such applications, offering reliable pressure regulation in environments with a maximum temperature of 85°C.

Correct selection and installation of a pressure reducing valve is critical to system performance. The valve must be sized to handle the flow rate and pressure conditions of the system, and the material must be compatible with the working medium and temperature. The IVAR I08026114 is suitable for use in systems where the media is water or similar non-corrosive fluids and where the operating temperature does not exceed the specified limit. The brass construction ensures mechanical strength and resistance to wear, while the internal thread connection allows for secure and leak-free installation in standard pipe systems.

Technical parameters

Material	Brass CW617N
Operating temperature	+85 °C
Nominal pressure	PN 25
Code	I08026114
Brand	IVAR

The maximum operating temperature of +85°C is a key factor in determining the suitability of the valve for a given application. The PN 25 rating indicates the valve can withstand a nominal pressure of 25 bar, which is important for ensuring the valve can handle the upstream pressure without failure. The adjustment range of 0.5 to 6 bar allows for precise control of downstream pressure, making this valve suitable for a wide range of system configurations. These parameters are essential for correct sizing and integration into the system.

Installation and connection

The valve is equipped with a 5/4 inch internal thread connection, which is compatible with standard pipe fittings of the same specification. Installers should ensure that the upstream and downstream piping is properly aligned and that the valve is installed in the correct orientation, with the flow direction indicated on the body. A common mistake is reversing the flow direction, which can lead to improper pressure regulation or damage to the internal components. Before tightening the fittings, the threads should be cleaned and lubricated with a suitable thread sealant to prevent leaks and ensure a secure connection. After installation, the pressure should be gradually increased to the desired setpoint, and the system should be monitored for leaks or abnormal operation.

Compatibility and accessories

The IVAR I08026114 is typically used in conjunction with pressure gauges, safety valves and check valves to form a complete pressure regulation and protection system. For systems requiring additional safety, a pressure relief valve should be installed downstream to prevent overpressure in the event of a failure. Installers should also consider the need for a filter or strainer upstream of the valve to prevent particulate matter from entering and damaging the internal components. No specific accessories are required for this model, but the system design should account for these elements to ensure reliable operation.

Technical background for designers

The IVAR I08026114 operates by reducing the upstream pressure to a user-defined downstream pressure. The internal mechanism consists of a diaphragm and spring assembly that adjusts the valve opening in response to changes in downstream pressure. The brass CW617N material provides good mechanical strength and resistance to corrosion, making it suitable for use in water-based systems. The valve should be integrated into the system in a location where it can be easily accessed for adjustment and maintenance. The service life and efficiency of the valve are influenced by the operating temperature, the quality of the upstream water and the frequency of pressure fluctuations in the system.

Service and operation

Regular inspection of the valve is recommended to ensure it continues to operate within the desired pressure range. Installers should check for signs of wear, leakage or blockage in the internal components and verify that the adjustment remains stable over time. No specific service intervals are provided in the technical data, but the valve should be tested periodically using a pressure gauge to confirm that the downstream pressure is maintained within the set range. If the valve shows signs of malfunction, it should be removed from service and inspected or replaced as necessary.

Frequently asked questions

Can the IVAR I08026114 be used in systems with a temperature higher than 85°C?
No, the maximum operating temperature is specified as +85°C. Exceeding this limit may cause deformation or failure of the internal components.

Is the valve suitable for use with steam or other vaporous media?
No, the valve is designed for use with water or similar non-corrosive fluids. It is not suitable for steam or vaporous media.

Can the valve be adjusted to a pressure lower than 0.5 bar?
No, the minimum adjustable pressure is 0.5 bar. The valve cannot be set to a lower pressure than this without risking damage to the internal mechanism.

What type of thread sealant should be used for the 5/4 inch connection?
A suitable thread sealant compatible with brass and water-based systems should be used. Avoid using sealants that contain solvents or oils that could degrade the material over time.