Madas Gas Solenoid Valves

Product Details

Madas (Italy) offers a comprehensive range of gas valves designed for safety, regulation, and filtration in industrial and commercial gas systems. Below is the complete breakdown of Madas valve models categorized by their specific functions and technical specifications. 1. Solenoid Valves (Electromagnetic Control) Used for automatic gas shut-off. They come in Normally Closed (NC) or Normally Open (NO) variants. Series Type Features Max Pressure EVP / EVPC NC Automatic Standard on/off valve. Fast opening/closing. 200/360 mbar EVPR / EVPCR NC Automatic Slow opening to prevent ignition "pops," fast closing. 360 mbar EWF / XW NC Automatic High-pressure automatic valves. 1 bar M16/RM N.A. NO Manual Reset Closes when energized (via gas detector). Manual reopen. 500 mbar – 6 bar M16/RM N.C. NC Manual Reset Opens when energized and manually reset. 500 mbar –6 bar EW-1 / EWR-1 NC Automatic Compact industrial valves for smaller gas trains. 500 mbar 2. Safety Shut-Off Valves (Slam-Shut) These are mechanical safety devices that snap shut if the system pressure exceeds (OPSO) or drops below (UPSO) safe limits. MVB/1 MAX (OPSO): Automatically shuts the gas flow if the pressure exceeds the set point. MVB/1 MIN (UPSO): Shuts the flow if the pressure drops below the set point (e.g., pipe rupture). Specifications: Sizes: DN 20 to DN 150 (Threaded or Flanged PN16). Pressure Rating: 1 bar or 6 bar bodies available. Reset: Manual reset only (ensures an operator inspects the system after a trip). 3. Gas Filters (FM & FMC Series) Designed to protect regulators and solenoid valves from dust and debris. Models: FM (Standard) and FMC (Compact). Filtration: Standard 50micron (washable synthetic cartridge). 10micron and 20micron available. Pressure: Up to 6 bar. Features: Often equipped with pressure test points (G 1/4") to check for filter clogging by measuring the pressure drop. 4. Safety Relief Valves (MVS Series) Releases small amounts of gas to the atmosphere to prevent nuisance tripping of the slam-shut valves during minor pressure spikes. MVS/1: Standard relief valve. MVSP/1: High-capacity relief valve for larger industrial systems. Setting Range: 20 mbar to 1000 mbar (depending on the spring). Connections: Usually 3/4" or 1" threaded. 5. Specialized Regulators & Ratios AG/RC Series: Air/Gas ratio regulators. They maintain a constant gas-to-air ratio for efficient combustion in burners. RG/2MCS: High-capacity industrial regulators with integrated safety valves. Summary of General Specifications Body Material: Die-cast Aluminum (standard) or Brass (small series). Gases: Natural Gas, LPG, Propane, and Biogas (specific versions). Working Temp: -20°C to +60°C. Standards: Built in compliance with PED 2014/68/EU and EN 161.