Carlo Poletti A37501T2 Safety Valve 1/2 inch 2 Bar

The Carlo Poletti A37501T2 is a professional-grade safety valve engineered for heating and hydraulic systems. Designed to maintain system integrity, this valve provides reliable pressure relief by automatically discharging fluid when the internal pressure exceeds the calibrated limit of 2 bars. Constructed from durable brass, it offers long-term resistance to corrosion and mechanical stress, ensuring consistent performance in demanding residential and commercial environments.

Advantages

The primary benefit of this safety valve is its robust brass construction, which ensures durability and reliability under constant pressure. Its precise calibration at 2 bars provides an essential safeguard against overpressure, effectively preventing potential damage to pipes, boilers, and other sensitive system components. The standard 1/2-inch internal thread connection allows for straightforward integration into existing plumbing setups, making it a versatile solution for maintenance and new installations alike.

Suitable for

• Residential heating systems
• Commercial hydraulic installations
• Boiler pressure protection
• Closed-loop water heating circuits

This valve is not suitable for systems requiring a pressure relief threshold other than 2 bars, as using an incorrectly calibrated valve can lead to system failure or safety hazards. It is also not intended for use in high-temperature steam applications exceeding its rated operating temperature or in systems where the connection size does not match the 1/2-inch internal thread specification.

Key specifications

• Connection size: 1/2 inch internal thread
• Pressure rating: 2 Bar
• Material: Brass
• Operating temperature: 90°C

To install the valve, ensure the heating or plumbing system is fully depressurized and drained. Apply appropriate thread sealant to the connection point and screw the valve securely into the designated port using a suitable wrench. Ensure the discharge outlet is directed toward a safe drainage area to prevent water damage during a pressure release event. Once installed, verify that there are no leaks at the connection point before bringing the system back to full operating pressure.

What to consider before purchase

• Verify that your system requires a 2 bar pressure relief setting.
• Ensure the 1/2-inch internal thread matches your existing piping.
• Confirm that the operating temperature of your system does not exceed 90°C.
• Check if your local building codes require specific certifications for safety valves.

Regularly inspect the valve for signs of corrosion or mineral buildup to ensure it remains functional. It is recommended to have the valve checked by a qualified technician during annual system maintenance to verify that the pressure relief mechanism operates correctly.