Radial manometer for gas - 0-60mbar/mm H2O IVAR.MM 63

Product detailed description

This radial manometer is commonly used in low-pressure gas systems in residential and commercial buildings, such as central heating systems, gas-fired water heaters and industrial gas appliances. It is typically installed downstream of gas regulators, safety valves and other gas control devices to monitor system pressure during commissioning, maintenance and operation. The compact design allows for installation in tight spaces, such as boiler rooms, utility areas and behind panels in mechanical rooms.

The instrument is suitable for both indoor and outdoor environments within the specified temperature range. It provides accurate readings in systems with fluctuating pressure levels, making it ideal for ensuring safe and efficient operation of gas appliances. The device must be mounted in a stable position to avoid vibration-induced errors and to allow easy access for inspection and calibration.

Technical parameters

Diameter	63 mm
Weight	0.209 kg
Code	MM63060MJ
Brand	IVAR

The 0–60 mbar/mm H2O range makes this manometer suitable for low-pressure gas systems, such as those using natural gas or propane. The 63 mm diameter housing ensures visibility of the scale from a distance, which is important for quick diagnostics. The operating temperature range of -20°C to +90°C covers typical ambient conditions in most European climates and system environments.

Installation and connection

The manometer connects via a 1/4 inch male thread, which must be matched with the corresponding female port on the gas system component. Before installation, verify the thread type and ensure the port is clean and free of debris. Apply a suitable sealing compound or PTFE tape to prevent gas leaks. Mount the manometer in a vertical orientation with the faceplate visible and accessible. During installation, check that the manometer is compatible with the gas type and pressure range of the system. Common mistakes include incorrect thread orientation, failure to seal the connection properly and mounting the device in a location with excessive vibration or exposure to moisture. After installation, perform a pressure test to confirm the integrity of the connection and the accuracy of the readings.

Compatibility and accessories

This manometer is typically used in conjunction with gas regulators, safety valves, pressure-reducing valves and gas burners. For complete system monitoring, additional components such as pressure switches, flow meters and control panels may be required. Related products include other manometers from the IVAR range with different pressure ranges and connection types.

Technical background for designers

The radial manometer operates on a Bourdon tube or diaphragm mechanism, converting pressure into a mechanical movement that drives the pointer. The housing is constructed from durable materials suitable for long-term exposure to gas and environmental conditions. The scale is calibrated for millibar and millimetres of water column, allowing for precise pressure adjustments and fault detection. The device integrates directly into the gas circuit without requiring external power, making it a passive component in the system. Longevity depends on correct installation, regular inspection and protection from physical damage or extreme temperature fluctuations.

Service and operation

No specific service intervals are provided for this device. Routine checks should include verifying the stability of the mounting, inspecting the connections for leaks and confirming that the pointer moves freely without sticking. If the manometer shows inconsistent readings or fails to respond to pressure changes, it should be removed and tested using a certified calibration device. Replace the unit if it shows signs of physical damage or internal failure.

Frequently asked questions

Can this manometer be used with liquefied petroleum gas (LPG)?
Yes, it can be used with LPG systems provided the pressure range and operating conditions match the specifications.

Is this manometer suitable for use in a condensing boiler system?
Yes, the operating temperature range and pressure range make it suitable for use in condensing boiler circuits.

Can this manometer be mounted horizontally?
No, it must be mounted vertically to ensure accurate readings and proper function of the internal mechanism.

What sealing material should be used on the 1/4 inch thread?
A non-hardening sealing compound or PTFE tape is recommended for a gas-tight connection.