Kromschroder Safety shut-off valve 03151134

Kromschroder safety shut-off valve SKU 03151134 is an over-pressure shut-off valve with a nominal diameter of 50 mm, designed for installation downstream of pressure regulators. It features flanged connections per ISO 7005 and a body made of aluminum alloy. The valve has a maximum inlet pressure of 5000 mbar and a factory setting of 120 mbar, providing automatic gas shut-off to protect downstream equipment. It is EU certified, originates from Germany, and has a net weight of 12 kg.

When selecting a safety shut-off valve of this type, verify the nominal diameter and connection standard (e.g., flanged per ISO 7005) match the existing piping. Ensure the maximum inlet pressure rating and the trip range (factory setting) are compatible with the system's operating pressure. Check the installation location, typically downstream of pressure regulators, and confirm the impulse line can be conveniently connected. The valve body material and weight should be considered for mounting support.

Common failure modes for this type of valve include a leaking valve seat, which may cause downstream pressure to rise unexpectedly, or a stuck mechanism that prevents automatic shut-off during overpressure events. Symptoms may include the burner failing to ignite or shutting down intermittently due to pressure fluctuations. Check the valve's trip setting and impulse line for blockages or leaks, and inspect the valve seat for wear or debris.