Pressure Reducing Valve - with fitting and pressure gauge - 5/4 "MM IVAR.5360

Product detailed description

This pressure reducing valve is commonly used in residential and commercial water supply systems to regulate the pressure of incoming mains water. It is typically installed in domestic plumbing, heating systems, and industrial water circuits where stable downstream pressure is essential for the safe operation of fixtures and appliances. The valve includes a built-in pressure gauge for real-time monitoring and is designed for use in environments where the water temperature does not exceed +80°C. It is suitable for applications such as boiler feed, domestic hot and cold water systems, and irrigation systems where pressure stability is required.

Installers and service technicians use this valve to ensure that the pressure in downstream components remains within safe limits, preventing damage to pipes, fittings, and appliances. The valve is typically installed in the main water line after the stopcock and before branch circuits, ensuring that all downstream equipment receives consistent and controlled pressure.

Technical parameters

Material	Brass CW753N
Operating temperature	+80 °C
Nominal pressure	PN 25
EAN	8016615014846
Weight	2.84 kg
Code	536071
Brand	IVAR

The operating temperature limit of +80°C means the valve is suitable for hot water applications such as domestic heating systems. The PN25 rating indicates that it can handle upstream pressures up to 25 bar, making it suitable for high-pressure mains water systems. The CW753N brass body ensures durability and resistance to corrosion in water environments. These parameters are essential for determining compatibility with the system pressure and temperature conditions.

Installation and connection

The valve is installed in a straight section of pipe with no bends or obstructions upstream or downstream. The 5/4 inch external metric threads require matching pipe fittings for secure connection. Installers should ensure the valve is oriented correctly, with the flow direction marked on the body. A common mistake is incorrect orientation, which can lead to improper pressure regulation. Before installation, the system should be depressurised and the valve checked for any visible damage. After fitting, the pressure gauge should be verified for accurate readings, and the downstream pressure adjusted to the required level using the adjustment screw.

Compatibility and accessories

This valve is compatible with standard water supply systems using metric threaded connections. It is typically used in conjunction with isolation valves and pressure relief devices to form a complete pressure regulation system. No additional accessories are included in the standard package, so installers may need to order separate components such as isolation valves or pressure relief valves depending on the system requirements.

Technical background for designers

The valve operates by reducing the upstream pressure to a set downstream pressure using a diaphragm and spring mechanism. The CW753N brass body provides good mechanical strength and resistance to corrosion in water environments. The NBR sealing material is suitable for use with potable water and is compatible with a range of water temperatures. The PN25 rating ensures the valve can handle high-pressure mains water without failure. The built-in pressure gauge allows for real-time monitoring of downstream pressure, which is essential for system diagnostics and maintenance. The valve should be installed in a location that is accessible for adjustment and inspection, and the system should be designed to allow for easy isolation of the valve for service.

Service and operation

The valve requires periodic inspection to ensure it is functioning correctly. Installers should check the pressure gauge for accuracy and verify that the downstream pressure remains within the set range. If the pressure deviates from the set point, the adjustment screw can be used to fine-tune the output pressure. No regular service intervals are specified in the product documentation, but the valve should be inspected during routine system maintenance. If the gauge shows signs of damage or inaccuracy, it should be replaced to ensure reliable operation.

Frequently asked questions

Can this valve 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, making it appropriate for domestic heating applications.

What is the pressure range that can be adjusted?
The valve allows for downstream pressure adjustment between 0.5 and 6 bar, which is suitable for most residential and light industrial applications.

Is the pressure gauge part of the valve or an additional component?
The pressure gauge is integrated into the valve body and is not a separate component, providing an immediate indication of downstream pressure without the need for additional fittings.

Can this valve be installed in a vertical orientation?
Yes, the valve can be installed in a vertical orientation as long as the flow direction is maintained and the valve is securely mounted to prevent vibration or movement.