Hydrant System Block Plan

In addition to the typical features of a block plan, a hydrant block plan also includes additional information including;

• the size and location of the water supply authority mains, including street hydrants incorporating dimensions;
• water supply valves and connections for non-industrial purposes;
• location and size of on-site fire mains;
• location and capacity of water storage tanks or static water supplies;
• location of each fire water pump;
• location and total number of each fire hydrant landing valve;
• location of each fire hydrant booster connection and assembly;
• location of each water supply isolating valve, check valve and non-return valve;
• location and description of any connection to other installed fire protection system or systems;
• the required operating pressure (kPa) and flow rate requirement (L/s) of each system;
• the location of the main electrical switchboard room;
• the location of any fuel source including LPG tanks and each gas shut-off valve;
• location of each flammable storage area

Additional baseline data that is required on a fire hydrant system block plan includes the following;

• the name of the installing contractor or contractor that has subsequently modified the fire hydrant system;
• the standard of performance (including year of publication) to which the system was designed, commissioned and subsequently tested;
• the height of the highest fire hydrant valve for each hydrant pressure zone (main or ring main) above the lowest booster inlet connection.