Pressure Reducing Valve - with fitting and pressure gauge - 3/4" MM IVAR.5350

Product detailed description

Pressure reducing valves are essential in water supply systems where incoming pressure exceeds safe operating levels. This model is commonly used in residential, commercial and light industrial applications to ensure downstream components operate within their design limits. Installers typically encounter this valve in domestic plumbing, heating circuits and irrigation systems. It is especially useful in areas with variable municipal water pressure or in systems with sensitive equipment such as boilers, heat exchangers and water heaters.

Correct installation of a pressure reducing valve ensures stable system performance and prevents damage to downstream components. The valve must be positioned in a location that allows easy access for inspection and adjustment. It should be installed in a straight section of pipe with sufficient clearance for maintenance. The presence of a built-in pressure gauge allows real-time monitoring of the reduced pressure, which is critical for system diagnostics and troubleshooting.

Technical parameters

The operating temperature of +40 °C indicates the maximum ambient or fluid temperature for continuous operation. The PN 25 rating means the valve is suitable for systems with a maximum working pressure of 25 bar. The CW602N brass alloy provides good corrosion resistance and mechanical strength, making it suitable for potable and non-potable water applications. These parameters are essential for selecting the correct valve for the intended system conditions.

Installation and connection

Installation requires a 3/4 inch MM external thread on both the inlet and outlet sides. The valve should be installed in a horizontal orientation with the pressure gauge facing upwards for accurate readings. Ensure the pipeline is clean and free of debris before fitting the valve to prevent damage to the sealing surfaces. A common mistake is failing to align the flow direction correctly, which can lead to improper pressure regulation and premature wear of internal components. Always verify the tightness of the connections using a wrench, but avoid over-tightening to prevent thread damage.

Compatibility and accessories

This valve is compatible with standard water supply systems and can be integrated with pressure relief valves, check valves or expansion vessels to form a complete pressure regulation and safety system. For complete functionality, installers may need to order additional components such as isolation valves or pressure switches separately. The valve is not designed for use with chemical or aggressive media unless confirmed by the manufacturer's technical data sheet.

Technical background for designers

The valve operates by restricting the flow of water to maintain a lower, controlled pressure downstream. The internal diaphragm reacts to pressure changes and adjusts the valve seat accordingly. The CW602N brass body is resistant to corrosion and suitable for long-term use in water systems. The NBR sealing material provides a reliable seal under normal operating conditions. The valve's efficiency depends on the stability of the upstream pressure and the absence of particulate matter in the fluid. For optimal performance, the system should be designed to allow sufficient flow capacity and avoid excessive backpressure.

Service and operation

Periodic inspection of the pressure gauge and valve operation is recommended to ensure consistent performance. Check for signs of leakage around the connections and verify that the pressure remains within the set range. If the gauge reading fluctuates or the pressure drops below the desired level, the valve may require adjustment or cleaning. No specific service intervals are provided in the brief; refer to the manufacturer's technical data sheet for detailed maintenance procedures.

Frequently asked questions

Can this valve be used in a domestic hot water system?
Yes, provided the operating temperature does not exceed +40 °C. The valve is suitable for cold water applications and should not be used for hot water unless specified in the technical data sheet.

Is it possible to adjust the pressure range beyond 1 to 6 bar?
No, the valve is factory-set for a pressure range of 1 to 6 bar. Adjustments outside this range are not supported and may compromise the valve's integrity.

Can this valve be used with a non-potable water supply?
Yes, the CW602N brass material is suitable for non-potable water applications. However, always confirm compatibility with the specific fluid composition using the manufacturer's technical data sheet.

What is the maximum allowable working pressure for this valve?
The valve is rated for a maximum working pressure of 25 bar, as indicated by the PN 25 designation. Exceeding this pressure may lead to failure of the valve or downstream components.