Where are pressure regulators typically attached?

Pressure regulators are crucial components in gas supply systems, particularly in the context of fuel delivery for internal combustion engines or gas appliances. They are designed to control the pressure of gas being supplied from the source to ensure that it remains within a safe and effective range for optimal operation.

When attached through the gas supply system, the pressure regulator helps manage fuel flow, compensating for variations in inlet pressure so that the engine or appliance consistently receives the proper amount of fuel. This function is vital for maintaining efficiency, performance, and safety.

While other options mention various parts of a vehicle or appliance, they do not serve as appropriate locations for pressure regulators. For instance, attaching a pressure regulator to the vehicle battery or engine block would not facilitate its primary role in managing gas pressure. Similarly, positioning it near the electrical panel does not pertain to the function of regulating gas flow within the system. Thus, the correct placement of pressure regulators through the gas supply system is essential for their intended functionality.