Pressure regulator CALEFFI 533441H angled version with gauge port 1/2" for high-temperature operation

Angled pressure regulator CALEFFI model 533441H with a 1/2" gauge port is a mechanical pressure control valve engineered for stable downstream pressure in heating and hot-water systems. The angled body reduces installation depth, making it suitable for compact plant rooms and confined piping runs. Designed for high-temperature operation, the valve supports thermal systems where temperature resistance and consistent pressure control are required. The integral port for a pressure gauge allows direct monitoring of outlet pressure without additional fittings.

Advantages

The angled design reduces the footprint of the regulator and simplifies installation in tight spaces while preserving full flow characteristics. High-temperature construction materials ensure durability and reliable control in heating and hot-water applications. The dedicated 1/2" gauge port enables easy pressure verification and commissioning. As a mechanical regulator, the device delivers stable downstream pressure with low maintenance and predictable performance over time.

Suitable for

• Residential and commercial heating systems
• Hot-water distribution and secondary circuits
• Compact plant rooms and tight piping layouts
• Applications requiring direct gauge monitoring of outlet pressure

Key specifications

• Connection type: angled body for in-line installation
• Gauge port size: 1/2" for direct manometer connection
• Operating range: suitable for high-temperature heating applications
• Function: mechanical downstream pressure regulation
• Suitable medium: water used in heating and hot-water systems

How to use

Install the regulator in the supply line so the flow direction matches the arrow on the body. Fit a compatible 1/2" pressure gauge into the dedicated port to monitor outlet pressure during setup and operation. Adjust the setpoint according to system design requirements and verify stability under operating temperature. Ensure connections are tightened to appropriate torque and the regulator is supported to avoid pipe stress. Commission the circuit and confirm the downstream pressure holds steady at the required value.

Usage recommendations

Use the regulator with clean system water and a suitable filtration/strainer upstream to prevent particulate ingress. Verify materials compatibility with system fluid at high temperatures, and follow routine inspection intervals to check gauge reading and detect any leaks. For optimal performance in heating systems, comply with local installation codes and use qualified personnel for fitting and adjustment.