The operation of the regulator is transmitted to the self-moving valve through the movable arm (b) and shaft (c) by the movement of the membrane or diaphragm (a). The outlet pressure is transferred to the room, causing an increase in pressure on the membrane (a), which is counteracted by the adjustment spring (e). The increase in outlet pressure raises the membrane (a), thus cutting off the gas flow with the self-moving valve. The force applied by the adjustment spring (e) allows the gas flow to start. The difference in force between the two ensures a constant outlet pressure through changes in flow.

There are two types of regulators used in gas installations.

Straight Regulator

Shut-off Regulator

Straight Regulator: Filtered gas pressure regulators, also known as fine regulators without safety shutdown, are regulators used in industrial and residential areas. They can be applied to non-corrosive gases with a maximum input pressure of 1 bar. These regulators manually reduce the pressure of non-abrasive gases through spring adjustments, providing both manual and automatic control at the desired pressure level. This ensures the safe operation of gas-consuming devices such as stoves, burners, and boilers. Equipped with a filter cartridge, they prevent the entry of dust, dirt, and particles carried by gas, thus preventing the blockage of subsequent devices such as meters and burners. These regulators are designed to be safe, high-performance, durable, with a wide and adjustable output pressure range. They are installed in front of pressure control devices in gas lines for the purpose of pressure control.
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Manually operated ball valve with remote control lever

Manually operated globe shut-off valve

"Safety shut-off valve

Gas filter

Gas Regulator

Relief valve

Shut-off regulator:Safety shut-off regulators are designed to activate the safety mechanism of the regulator and cut off the natural gas flow when there is an increase in pressure beyond the set safety limits or in cases of excessive demand. Therefore, safety shut-off regulators are typically used after regular regulators. The regulators in service boxes reduce the gas pressure from the range of 1-4 bar to the usage pressure, which is either 21 mbar or 300 mbar.