Axial Pressure Gauge 0 - 4 bar, 63 mm

Product detailed description

This axial pressure gauge is commonly used in residential and commercial heating systems, plumbing networks, and irrigation setups. It is designed for direct mounting on boiler panels or horizontal pipe layouts, where space is limited and accessibility is important. The axial orientation ensures that the dial remains visible without obstructing adjacent components. Installers and technicians typically use it for monitoring pressure levels in closed-loop systems such as boilers, heat pumps, and circulation circuits.

The device is particularly useful in systems requiring regular pressure checks, such as central heating and hot water installations. Its compact size and axial design make it suitable for tight spaces. The gauge provides accurate readings for system diagnostics and maintenance. It is not recommended for high-vibration environments unless additional mounting precautions are taken.

Technical parameters

Type	Axial pressure gauge (Bourdon tube)
Range	0-4 bar
Dial diameter	63 mm
Body	ABS, acrylic window
Accuracy class	2.5
Connection	1/4 inch rear (axial)
Net weight	0.092 kg
Warranty	2 years
EAN	5900308749906
Code	MAN.AKS.4 B
Brand	Hydroland

The pressure range of 0–4 bar is suitable for low-pressure systems such as domestic heating and water supply circuits. The 63 mm dial allows for easy reading even from a distance. A class accuracy of 2.5 means the deviation is within ±2.5% of the full scale, which is acceptable for general monitoring purposes but not for precision calibration. The rear 1/4 inch connection ensures compatibility with standard pipe fittings and valves.Installation and connection To install the axial pressure gauge, ensure the system is depressurised and the mounting surface is clean. Align the rear 1/4 inch threaded connection with the corresponding port on the pipe or valve. Secure the gauge using a suitable nut and washer, ensuring the connection is tight but not over-tightened to prevent damage to the housing. After installation, verify that the gauge is level and the dial is clearly visible. Common installation errors include using incorrect thread sealing methods or failing to align the gauge properly. Always check for leaks after installation by visually inspecting the connection and monitoring the gauge for sudden pressure drops. Avoid installing in areas exposed to direct sunlight or extreme temperatures, as this can affect the accuracy of the readings.

Compatibility and accessories

This pressure gauge is compatible with a wide range of valves and fittings that use 1/4 inch threaded connections. It integrates well with boiler systems, expansion vessels, and circulation pumps. For complete monitoring, it may be used alongside pressure switches, temperature sensors, and control units. Additional items such as sealing rings, mounting brackets, or protective covers may be required depending on the installation environment.

Technical background for designers

The axial pressure gauge operates using a Bourdon tube mechanism. As pressure increases inside the tube, it causes a mechanical deflection that moves the pointer across the dial. The ABS housing provides good resistance to corrosion and impact, while the acrylic window protects the dial from dust and physical damage. The lightweight design reduces stress on mounting points. The gauge is intended for use in clean water or non-aggressive media. Prolonged exposure to high temperatures or aggressive chemicals may degrade the materials. The 63 mm dial size is optimal for systems where frequent visual checks are necessary. The rear connection allows for compact installation without protruding from the panel.

Service and operation

During operation, ensure that the gauge remains free from dirt and moisture. If the dial becomes difficult to read, clean the acrylic window with a soft cloth. There are no user-serviceable parts inside the housing, and the device does not require regular calibration. If the pointer fails to return to zero after depressurisation, the gauge should be inspected or replaced.

Frequently asked questions

Can this gauge be used in a closed-loop heating system?
Yes, it is suitable for closed-loop heating systems operating within the 0–4 bar pressure range.

Is the gauge compatible with copper or plastic pipes?
Yes, the 1/4 inch threaded connection allows it to be connected to both copper and plastic fittings using appropriate adapters.

What should I do if the pointer does not move when pressure is applied?
Check the connection for blockages or leaks. If the issue persists, the gauge may be faulty and should be replaced.

Can I mount this gauge horizontally or vertically?
It is designed for horizontal mounting but can also be installed vertically if the dial remains visible and the connection is secure.