Schematic Diagram To Show An Ideal Installation of Gas Pipe lines

Schematic Diagram To Show An Ideal Installation

Shown above is a schematic drawing of an ideal installation as per Indian Standard IS 6044. At the very start S.C. Valve Adapters with inbuilt non-return valves are used to fit onto the cylinder [note the 2 side screw flow adjustment device is illegal as it is not an adapter & ruins cylinder valve]. The adapter is linked to the manifold by means of a re-inforced flexible cylinder pigtail. Manifolds come in either staggered or standard formation to suit the space available where the cylinders are stored. At all points in time cylinders whether empty or full must be connected to the system. This is why manifolds are sold in sets of 2 arms, 1 online & 1 in reserve. After the 2 manifolds are connected a primary stage regulator must be used to reduce the pressure in the line ahead to a maximum of 2kgs/cm2 [or 30psi]. Choosing a regulator is important as the flow requirement of the entire system must not exceed what the regulator can deliver. Outside the cylinder storage site and in each room in which gas is used an emergency valve has to be provided. It is good practice to use second stage regulators in each room so that pressure stability can be maintained to the burners downstream of the second stage regulators. Finally, even though an appliance might have it's own controls, each tapping point, from where gas is being drawn, must be terminated in a needle control valve on the line prior to it's connection with the burner or appliance. By following these few rules together with others laid down in the Indian Standard IS 6044 a safe installation can be assured.