Pressure Reducing Valve - with fitting and pressure gauge - 3/4" MM IVAR.5360

Product detailed description

This pressure reducing valve is commonly used in residential and commercial water supply systems to regulate and maintain a consistent downstream pressure. It is suitable for installation in heating systems, domestic water circuits, and industrial applications where stable pressure control is required. The device is designed for use with cold and warm water, ensuring reliable operation in environments with fluctuating supply pressures. Installers often use this model in conjunction with safety groups and expansion vessels to protect downstream components from pressure surges and overpressure conditions.

Typical installation scenarios include new building construction, system upgrades, and maintenance work in plumbing and heating systems. The valve is often found in central heating systems, where it helps to reduce mains pressure to a safe level for radiators, boilers, and other sensitive equipment. Its compact design and integrated pressure gauge make it ideal for installations where space is limited and real-time pressure monitoring is required.

Technical parameters

Material	Brass CW753N
Operating temperature	+80 °C
Nominal pressure	PN 25
EAN	8016615014761
Weight	1.716 kg
Code	536051
Brand	IVAR

The operating temperature limit of +80°C means this valve is suitable for warm water systems but not for steam or high-temperature applications. The PN 25 rating indicates that it can handle a nominal pressure of up to 25 bar, making it appropriate for systems with high mains pressure. The CW753N brass body provides good corrosion resistance and mechanical strength, while the NBR sealing material is compatible with water and resistant to moderate temperatures. These parameters are essential for correct sizing and selection in accordance with the system’s hydraulic and thermal requirements.

Installation and connection

The valve is connected using external metric threads (MM) on both the inlet and outlet sides. Installers should ensure that the connection size of 3/4 inch matches the existing piping system. Prior to installation, the system should be depressurised and the valve should be checked for any visible damage. The pressure gauge should be installed in a location that is easily accessible for monitoring. A common mistake is incorrect orientation of the valve, which can lead to improper pressure regulation. It is also important to verify that the downstream system components are compatible with the reduced pressure setting to avoid underperformance or damage.

Compatibility and accessories

This pressure reducing valve is compatible with standard copper and plastic piping systems that use metric thread connections. It is often used in conjunction with expansion vessels, safety valves, and pressure switches to form a complete pressure regulation and safety system. When installing, it may be necessary to order additional components such as unions, pipe fittings, and mounting brackets depending on the system configuration. No specific related products are listed for this model.

Technical background for designers

The valve operates by reducing the upstream pressure to a pre-set level using a spring-loaded diaphragm mechanism. The pressure gauge provides a visual indication of the downstream pressure, allowing for real-time monitoring and adjustment. The CW753N brass body is selected for its durability and resistance to corrosion in water systems. The NBR sealing material ensures a tight seal under normal operating conditions. The valve should be integrated into the system at the point where the mains pressure is highest, typically at the point of entry to the building. Long-term performance is influenced by the quality of the water supply, the frequency of pressure fluctuations, and the accuracy of the initial pressure setting.

Service and operation

Regular inspection of the pressure gauge and valve body is recommended to ensure continued performance. No specific service intervals are provided in the product data. If the downstream pressure deviates from the set value, the valve should be checked for wear or blockage. The NBR seal may degrade over time due to exposure to water and temperature variations, so it should be replaced if leakage is detected. The valve should be isolated from the system using shut-off valves before any maintenance is carried out.

Frequently asked questions

Can the IVAR 536051 be used in a domestic hot water system?
Yes, the valve is suitable for hot water systems with a maximum operating temperature of +80°C.

What is the maximum pressure this valve can handle?
The valve has a nominal pressure rating of PN 25, meaning it can handle up to 25 bar of pressure.

Is the pressure gauge adjustable?
No, the pressure gauge is fixed and provides a visual indication of the downstream pressure.

Can this valve be used with plastic piping systems?
Yes, the valve is compatible with plastic piping systems that use metric thread connections.