Dungs MBZRDLE 407

DUNGS MB-ZRDLE gas valve assembly

Technical Specifications

OEM reference3970537
Maximum operating pressure360 mbar
FunctionTwo-stage GasMultiBloc; slow-opening V2
Outlet-pressure optionsS20/S22: 4–20 mbar; S50/S52: 4–50 mbar
Opening time<20 s (DLE)
ProtectionIP54
Download Series Technical DocumentationPDF
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Product Overview

The DUNGS MB-ZRDLE 407 GasMultiBloc combines pressure regulation and safety shut-off functions for two-stage gas-burner operation. This listing uses Riello assembly reference 3970537.

Product Specification

  • Maximum operating pressure: 360 mbar.
  • Two-stage operation with slow-opening V2 valve.
  • IP54 protection.

Regulator Options

For the B07 versions covered by the linked data sheet, S20/S22 regulators provide a 4–20 mbar outlet-pressure range; S50/S52 versions provide 4–50 mbar.

Assembly Selection

The complete GasMultiBloc type code identifies the regulator and electrical configuration. Flanges, pressure switches and valve-proving equipment are assembly-specific components; the Riello reference identifies the required burner-side assembly.

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DUNGS MB-ZRDLE gas valve assembly
DungsMBZRDLE 407
Part code3970537

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