Pressure Reducing Valve - with fitting and filter screen - 1/2 "MM IVAR.PRV

Product detailed description

Pressure reducing valves are essential components in water supply systems where the mains pressure exceeds the safe operating level for downstream equipment. This model is commonly used in residential, commercial and industrial applications where stable low-pressure water delivery is required. Installers typically encounter this valve in domestic hot and cold water systems, as well as in irrigation and pump systems. It ensures consistent pressure to fixtures, appliances and piping, reducing the risk of damage from overpressure.

Correct installation of a pressure reducing valve is crucial for system performance and safety. This valve is designed to handle high inlet pressures and reduce them to a user-defined output range. It is particularly useful in areas with variable municipal water pressure or in systems with sensitive downstream components such as boilers, heat exchangers and water heaters.

Technical parameters

Material	Brass CW602N
Operating temperature	+70 °C
Nominal pressure	PN 25
Weight	0.475 kg
Code	509126
Brand	IVAR

The operating temperature limit of +70°C is suitable for most hot water applications, including heating systems. The PN 25 rating indicates the valve is capable of withstanding a nominal pressure of 25 bar, making it suitable for high-pressure mains systems. The brass CW602N material is corrosion-resistant and suitable for long-term use in water systems. These parameters are essential for determining compatibility with existing piping and system design.

Installation and connection

The valve is supplied with a 1/2 inch male metric thread for connection to the main supply line. Three 1/4 inch external metric threads are provided for pressure gauge installation, allowing for monitoring of inlet and outlet pressures. Before installation, ensure the system is depressurised and the valve is correctly oriented with the flow direction marked on the body. A common mistake is incorrect thread orientation or failure to install a filter screen upstream, which can lead to clogging and reduced performance. Always verify that the filter screen is in place and that the valve is installed in a location accessible for maintenance and inspection.

Compatibility and accessories

This pressure reducing valve is compatible with standard water supply systems and can be integrated with pressure gauges and isolation valves for complete system control. When installing, it is recommended to include a pressure gauge and a shut-off valve for isolation and monitoring. No specific accessories are required beyond standard plumbing fittings. The valve is not compatible with non-water media or high-temperature steam systems.

Technical background for designers

The valve operates by reducing the inlet pressure to a set point using a spring-loaded diaphragm mechanism. The filter screen prevents particulate matter from entering the valve body, reducing wear and ensuring consistent pressure regulation. The brass CW602N material is selected for its durability and resistance to corrosion in water environments. The EPDM sealing material is suitable for temperatures up to +70°C and provides a reliable seal. The valve should be integrated into the system upstream of sensitive components to protect them from pressure fluctuations and overpressure events. The selection of the correct pressure range and flow capacity is essential for system efficiency and longevity.

Service and operation

Routine inspection of the valve should include checking for leaks, verifying the pressure setting and ensuring the filter screen is clean. If the pressure output deviates from the set point, the valve may require adjustment or cleaning. There are no specified service intervals in the brief, but regular visual checks are recommended. If the filter screen becomes clogged, it should be removed and cleaned with water. Avoid using harsh chemicals that could degrade the EPDM sealing material.

Frequently asked questions

Can this valve be used in a hot water system?
Yes, the valve is suitable for hot water systems with a maximum operating temperature of +70°C.

Is the filter screen removable for cleaning?
The filter screen is part of the valve body and is not designed for removal or replacement by the user.

Can a pressure gauge be connected directly to the valve?
Yes, the valve has three 1/4 inch external metric threads for pressure gauge installation.

Is this valve suitable for use in a high-pressure water supply?
Yes, the valve has a PN 25 rating and is designed for high-pressure water supply systems.