Madas Pressure Regulator Valves RG Series

Energy Combustion, Ahmedabad importer and suppliers of MADAS brand Gas Pressure Regualator and all other components. Madas is an Italian manufacturer known for high-precision gas pressure regulators used in industrial, commercial, and domestic gas systems (Natural Gas, LPG, Biogas). Their regulators are designed to provide a constant downstream pressure regardless of inlet fluctuations. Below is a breakdown of the primary models and their technical specifications. 1. Popular Madas Models Madas uses a specific coding system to differentiate features like safety shut-offs and built-in filters. Series Description Key Features RG/2MC Basic Regulator Standard pressure regulator without filter or safety shut-offs. FRG/2MC Filter-Regulator Includes a built-in filter (FRG = Filter + Regulator). RG/2MB Safety Regulator Includes OPSO (Overpressure Shut-Off) as standard. FRG/2MB Filter-Safety Regulator Includes Filter + OPSO + UPSO (Underpressure Shut-Off). RG/2MCS High-Capacity Designed for larger flow rates and industrial burner applications. 2. General Technical Specifications Specifications vary by the specific "DN" (Diameter Nominal) size, but general ranges include: Inlet Pressure (P_1): * Low Pressure: Up to 500 mbar. Medium/High Pressure: Up to 5 bar (some models up to 6 bar). Outlet Pressure (P2): Typically adjustable from 10 mbar to 500 mbar (depending on the spring installed). Size Range: From 1/2" (DN 15) up to 6" (DN 150) flanged. Operating Temperature: -20°C to +60°C. Safety Devices: OPSO: Trips and stops gas flow if outlet pressure is too high. UPSO: Trips if outlet pressure drops too low (often due to supply failure). Relief Valve: Vents small amounts of gas to prevent nuisance tripping. Materials: Body typically made of Die-cast Aluminum; internal parts in stainless steel, brass, and NBR rubber. 3. Specific Model ExamplesFRG/2MB (Compact Series) Sizes: DN 15, DN 20, DN 25 ($1/2"$ to $1"$). Max Inlet: $5$ bar. Common Use: Individual burners or small boiler rooms. Filter: $50\mu$m filtering element included. RG/2MBZ (Large Series) Sizes: DN 32 to DN 100 ($1\ 1/4"$ to $4"$). Connection: Threaded or Flanged (PN16). Max Inlet: $5$ bar. Accuracy: AC 10 (±10% of the set pressure). Quick Reference: Safety Terms OPSO: Over Pressure Shut Off (Mandatory in many industrial setups). UPSO: Under Pressure Shut Off. Compensated Obturator: A design feature that ensures the outlet pressure stays stable even if the inlet pressure jumps or drops suddenly.