Brahma Gas Solenoid Valve EG 30 SR

ENERGY COMBUSTION, Ahmedabad importer of all types of BRAHMA make Gas Solenoid Valve, Burner Sequence Controller, Ignition Transformer. Brahma (Italy) is a leading manufacturer of gas and oil solenoid valves, widely used in industrial burners and HVAC systems. Their valves are typically normally closed (NC) and are categorized by their opening speed and size. 1. Key Brahma Model Series Brahma models are identified by a series prefix and a numerical value representing the size or flow capacity. Series Description Common Use E6G Compact/Mini Series ($1/4"$, $3/8"$, $1/2"$) Small burners, pilot lines, and gas hobs. EG12 Standard $1/2"$ Series Boiler rooms and medium-sized burner assemblies. EG15 Standard Industrial ($1/2"$ to $1"$) High-capacity industrial burner gas trains. EG25 / EG30 Large Industrial ($1"$ to $2"$) Heavy-duty gas distribution and large burners. EG40 Flanged/Large Threaded ($1\ 1/2"$ to $2"$) High-flow applications (often flanged PN16). 2. Model Coding (Suffixes) Brahma uses specific letters to define the valve's operation: S (Fast Opening): Opens immediately (usually $< 1$s). L (Slow Opening): Opens gradually via a hydraulic shock absorber; ideal for avoiding "flame lift-off" during ignition. SR (Fast Opening + Flow Adjustment): Allows you to manually limit the maximum gas flow. GMO: Indicates a specific coil type/connection (often includes a rectifier for noiseless AC operation). 3. General Technical Specifications Media: Natural Gas (Methane), LPG, Town Gas, and Air. Operating Pressure: * Standard models: Up to 500 mbar ($0.5$ bar). High-pressure variants: Available up to 1 bar (e.g., specific E6G versions). Supply Voltage: $230\text{V}$ AC (Standard), $110\text{V}$ AC, or $24\text{V}$ AC/DC. Temperature Range: $-10\text{°C}$ to $+60\text{°C}$. Protection Class: IP54 (standard), with IP65 available for specific coil types. Body Material: Die-cast Aluminum (EG series) or Brass (E6G series). Filtration: Integrated wire-mesh filter on the inlet ($> 1$ mm) to prevent debris from entering the valve seat. 4. Adjustment Features (on "L" and "SR" models) If you have an adjustable model, you will typically find adjustment screws under the top plastic cap: Flow Regulation: A large screw/nut that moves the internal plunger to limit the maximum opening. Opening Time (Slow Models): A small screw that regulates the hydraulic brake to speed up or slow down the opening ramp. Initial Fast Stroke: On slow-opening valves, you can set an "initial jump" so the valve pops open slightly for ignition before finishing the slow ramp-up.