Ball valve - direct, 3/4" F x 3/4" F

Product detailed description

This direct ball valve is specifically designed for integration into gas supply systems where fire safety is a critical requirement. It is commonly used in residential and commercial buildings, particularly in gas distribution systems where the risk of fire necessitates automatic shut-off mechanisms. The valve is intended for use in environments where the ambient temperature ranges from -20°C to +60°C, making it suitable for both indoor and outdoor installations in temperate climates. The internal fire safety mechanism ensures that the gas supply is cut off in the event of a fire, preventing further risk of gas leakage and potential explosion.

The valve is typically installed in gas lines serving heating appliances, stoves, and other gas-powered equipment. It is designed for use in systems operating at a nominal pressure of PN 5, making it appropriate for low-pressure gas applications. The valve is intended for use in accordance with relevant technical standards for gas installations.

Technical parameters

Installation and connection

The valve is equipped with internal female threads on both ends (FF), with a connection size of 3/4 inch. It is designed for direct installation into gas lines without the need for additional adapters. When installing, ensure that the threads are clean and free from debris to prevent leaks. Apply a suitable thread sealant to the male threads of the connecting pipes before tightening. A common mistake is over-tightening the connections, which can damage the threads or the valve body. Always verify the orientation of the valve to ensure the flow direction is correct and the fire safety mechanism is positioned as intended.

Compatibility and accessories

This valve is compatible with standard gas piping systems using 3/4 inch internal threaded connections. It is intended for use with low-pressure gas supply lines and should be installed in accordance with the manufacturer's recommendations. No additional accessories are required for standard installation. However, it is important to ensure that the entire gas system is compatible with the valve's pressure and temperature ratings. No related products are available for this model.

Technical background for designers

The valve operates as a standard ball valve with a quarter-turn mechanism for opening and closing the flow. The fire safety mechanism, known as FIREBAG®, is integrated into the valve body. When the ambient temperature reaches 100°C (with a tolerance of -5 K), a release element within the valve body activates, sealing the gas flow. The nickel-plated brass CW617N body provides durability and resistance to corrosion, ensuring long-term performance in gas applications. The valve is designed to integrate into low-pressure gas systems and is suitable for use in both new and existing installations. The service life is influenced by the quality of installation, the condition of the gas supply, and the frequency of use.

Service and operation

Regular inspection of the valve is recommended to ensure the fire safety mechanism is functional and the connections are secure. No specific service intervals are provided in the technical data. During operation, ensure that the valve is not subjected to excessive mechanical stress or exposure to temperatures outside the specified range. In the event of suspected malfunction, the valve should be inspected by a qualified technician. The valve does not require routine maintenance beyond visual inspection and leak testing.

Frequently asked questions

Can this valve be used in high-pressure gas systems?
No, this valve is rated for nominal pressure PN 5 and is suitable only for low-pressure gas applications.

Is the fire safety mechanism automatic?
Yes, the FIREBAG® mechanism activates automatically when the ambient temperature reaches 100°C, sealing the gas flow without manual intervention.

Can this valve be used in outdoor installations?
Yes, provided the ambient temperature remains within the operating range of -20°C to +60°C and the valve is protected from direct exposure to weather elements.

What is the material of the valve body?
The valve body is made of nickel-plated brass CW617N, which provides corrosion resistance and mechanical strength suitable for gas applications.