Hoffman Estates Fire Department Standard Operating Guidelines PDF

HOFFMAN ESTATES FIRE DEPARTMENT STANDARD OPERATING GUIDELINES SOG Category & Identification Number: EFFECTIVE DATE: FIRE SCENE OPERATIONS – 003 January 1, 2022 NIMS COMPLIANT SOG Title:...

HOFFMAN ESTATES FIRE DEPARTMENT STANDARD OPERATING GUIDELINES SOG Category & Identification Number: EFFECTIVE DATE: FIRE SCENE OPERATIONS – 003 January 1, 2022 NIMS COMPLIANT SOG Title: Fire Stream Management Revision: 3 APPROVED BY: NUMBER OF PAGES: Re-evaluation Date: Alan Wax January 1, 2026 Fire Chief 3 PURPOSE Operating Pressures: The following has been established as STANDARD OPERATING PRESSURES AND GPM FLOWS for all department related operations. POLICY PROCEDURE A. All interior 1 3/4" lines will have a nozzle pressure of 60 psi (for fog nozzles) or a nozzle pressure of 50 psi (for smooth bore nozzles) and will be calculated at 200 GPM. (NOTE: All fog nozzles should be set at 250 GPM on the nozzle selector with a straight stream pattern). B. All exterior handlines using a 250 GPM fog nozzle will be handled the same as interior lines with regard to nozzle pressure and GPM flows. Nozzle pressure will be 60 psi and the GPM flow will be 200. C. All smooth bore nozzles will be calculated with a nozzle pressure of 50 psi and at the following GPM flows: 1. 1" tip at 200 GPM 2. 1 1/8" tip at 250 GPM 3. 1 1/4" tip at 300 GPM D. All exterior master streams will be calculated with a nozzle pressure of 100 psi for fog nozzles and a nozzle pressure of 80 psi for all smooth bore nozzles and at the following GPM flows: 1. 1 1/4" at 400 GPM 2. 1 1/2" at 600 GPM 3. 1 3/4" at 800 GPM 4. 2" at 1000 GPM (Only when mounted on the engine) 1  5. fog nozzles at 1000 GPM E. An initial engine discharge pressure of 150 psi must be maintained for all pumpers supporting a sprinkler and/or standpipe system. Once the initial engine pressure is established, one of the following must occur: 1. If the building is not equipped with a fire pump, the engine discharge pressure should be increased to maintain STANDARD OPERATING PRESSURES and GPM FLOWS for all handlines. 2. If the building is equipped with a fire pump and the initial discharge pressure of 150 psi is overcoming the fire pump, (the fire pump is not supplying proper pressure), then the engine discharge pressure should be increased as if the building did not have a fire pump. 3. If the building is equipped with a fire pump and the initial discharge pressure of 150 psi is not overcoming the building's fire pump, (only a small amount of water is being discharged by the pumper), then the pumper must be shut down (kept in position) and the building's fire pump left to maintain proper standpipe and sprinkler pressures. F. The in-line foam eductors are 95 GPM units and are calibrated for 200 psi inlet pressure. These eductors are capable of handling 300 feet of 1 3/4" hose after the eductor.. All engines have 30 gallons of AR-Synthetic Universal Green 3% foam. Foam eductors should be set at 3%. All other suppression options must be exhausted prior to the use of foam. Foam will not be allowed for training use. Foam can be applied in two manners. When using a standard fog nozzle, the foam is thinner and non-aerated. Whenever a fog nozzle is used, the nozzle must be set to the 95 setting in order to match the flow of the eductor. The use of a foam aspirating nozzle produces thicker, better foam. Both nozzles can be used with the 95 GPM eductors. Hydrant Connections A. Whenever connecting to a hydrant for water supply the following must be accomplished: 1. Flush hydrant to ensure that the hydrant is in working condition and to remove any debris present prior to hooking any hose or appliance to the hydrant. 2. Soft sleeve or 5" LDH (LDH needs a hydrant adaptor also) connected to the hydrant steamer connection. 3. If the hydrant is not equipped with a steamer port, use an adaptor(s) to connect into the 2 ½” port(s). Relay Pumping A. First-arriving engine is positioned at the fire. The Company Officer makes the size-up and 2  determines the quantity of water needed. An initial attack may be made with the water carried on the pumper. B. When the relay is being set up, the largest capacity pumper available should be positioned at the water source. C. Pumpers should keep at least 100 feet of hose in reserve in case of hoseline bursts. D. The pump operator for each pumper except the supply bleeds the air from the supply hose using the Master Intake Valve (MIV). This allows the air from the hose lines to escape as the water advances up the hoseline. E. The pumper at the water source starts at idle, maintains 20 psi. (residual on the suction side) and add 20 psi. (for the relay on the discharge side), not to exceed 150 psi. F. The operator of the attack pumper informs the other pump operators how much water is needed. G. The supply pumper throttle is adjusted until the operating pressure is reached for the needed amount of water. Each successive pump is similarly adjusted. The discharge pressure should not exceed 200 psi. The residual pressure reading at the intake gauge should not fall below 20 psi. H. Set pressure regulating devices. I. The attack-pump operator adjusts the discharge pressure(s) to supply the attack line(s). Once the water is moving, the supply should not be shut off at any point between the supply pumper and the fire. Nozzles should not be closed unless absolutely necessary. If a temporary shut-down is called for, the attack-pump operator should open one or more discharge gates to dump excess water. If a hoseline bursts, a discharge gate of the pumper before the rupture should be opened to dump water until the length is replaced. When shutting down the water supply operation, start at the fire and work back towards the water source. DEFINITIONS EXCEPTIONS REFERENCES End of Document 3