Kromschroder Gas valve VR25.02NT3Z 74918695

This is a boiler housing part from Kromschroder, model VR25.02NT3Z, SKU 74918695. It is an air valve supplied without a protective housing, intended for controlling cold air flow. The valve regulates the volume of combustion air entering a burner or boiler system, typically working together with a gas valve to maintain the correct air-to-fuel ratio. It is designed for installation into an existing housing or air control ramp. Weight: 1.7 g. Country of origin: Germany/Slovakia.

Valves of this kind, supplied without a housing, are selected primarily by their model designation and by matching the physical interface with the existing housing and actuator. The mounting pattern, stem connection, and travel limits must match; otherwise the actuator may not achieve the required stroke. Before ordering, verify the original part number or any supersession to ensure the replacement is correct.