Kromschroder VAN125R/NWSR Burner Accessory
Technical specs, application notes, replacement checks, and related model references.
Product Overview
The Kromschroder VAN125R/NWSR is a high-performance Class A gas safety shut-off valve designed for industrial combustion processes. As an essential safety component within the Elster gas train architecture, it ensures instantaneous isolation of natural gas and LPG upon burner lockout or power failure. The robust actuator design delivers a closing time of less than 1 second, meeting the strictest international safety codes. With its modular assembly, the VAN125R/NWSR can be seamlessly integrated with pressure switches and valve proving systems, making it the premier choice for EN 161 compliant heating systems.
Key Features
- Valve Class: Class A Safety Shut-off Valve (EN 161 / ISO 23551-1)
- Closing Time: < 1 second for instantaneous fail-safe
- Construction: Rugged die-cast aluminum body with modular flange/thread connections
- Protection Class: IP65 for robust environmental resilience
- Approvals: CE, FM, CSA, and UL certified (depending on configuration)
Recorded catalog values are provided for comparison. Verify the complete model suffix and document revision before use.
Catalog Specifications
Control Ratio
1:1 (VAG)
Max Operating Pressure
500 mbar
Protection Class
IP 65
Valve Class
Class A (EN 161)
Selection Notes & Data Verification
The VAN125R/NWSR page is structured for engineering comparison: confirm the product type, firing range, fuel type, operating mode, electrical supply, and safety approvals against the manufacturer datasheet before specifying the burner or component.
Burner.wiki normalizes product data for discovery and comparison, but final selection should account for combustion chamber backpressure, local emission limits, control sequence requirements, and site commissioning conditions.
Application Checks
Related Models
Related Knowledge
FAQ
What is Kromschroder VAN125R/NWSR used for?
Kromschroder VAN125R/NWSR is referenced as a burner accessory for industrial combustion systems. Verify the exact application against the burner documentation, control cabinet wiring, and manufacturer datasheet.
Can VAN125R/NWSR replace another model?
Replacement depends on voltage, safety timing, wiring terminals, flame supervision method, mechanical fit, and local combustion safety requirements.
What should be checked before installing VAN125R/NWSR?
Check supply voltage, burner sequence, fuel type, pressure or capacity range, detector compatibility, safety loop configuration, and the equipment nameplate before commissioning.
Documentation Note
Technical documentation should be verified against the manufacturer datasheet, burner cabinet wiring diagram, and equipment nameplate before installation or replacement.
- Check supply voltage and frequency.
- Confirm terminal layout and safety interlocks.
- Verify flame detector or actuator compatibility.
Plan Your Selection
Use the selection guide to organize model, operating condition, and documentation checks.
Selection Guide