🎧 New: AI-Generated Podcasts Turn your study notes into engaging audio conversations. Learn more

HR OPS EQUIPMENT 19-40.pdf

Loading...
Loading...
Loading...
Loading...
Loading...
Loading...
Loading...

Document Details

ProtectiveDaffodil

Uploaded by ProtectiveDaffodil

2022

Tags

firefighting emergency equipment high-rise operations

Full Transcript

SECTION TOPICS High-Rise Hose Pack Nozzles High-Rise Pack Building Procedures High-Rise Standpipe Bag Elkhart Brass R.A.M. XD High-Rise Hose Pack Mercury Quick Attack Monitor/MQA SECTION OBJECTIVES Understand the contents and the purpose of all equipment in the FDC Be able to competently deploy...

SECTION TOPICS High-Rise Hose Pack Nozzles High-Rise Pack Building Procedures High-Rise Standpipe Bag Elkhart Brass R.A.M. XD High-Rise Hose Pack Mercury Quick Attack Monitor/MQA SECTION OBJECTIVES Understand the contents and the purpose of all equipment in the FDC Be able to competently deploy the high-rise pack Understand the specifications, pressure ratings, and use of FDC high pressure hose Be able to competently perform the role of the control firefighter making connections to the standpipe Be able to competently perform the role of a pump operator connecting to an FDC Understand the flows and pressures associated with the R.A.M Understand the contents and purpose of all equipment within the high-rise standpipe bag Understand the R.A.M s active safety system Understand the specifications, pressure ratings, and use of the highrise hose pack Demonstrate an understanding of tactical considerations when using the MQA Understand the specifications of highrise nozzles including operating pressures, GPM, and nozzle reaction Understand the pressure and flows associated with the Mercury Quick Attack Understand which high-rise nozzle tip size should be used with Understand tactical considerations for using the RAM in high-rise operations Second Edition 01/11/22 11 OVERVIEW another, but all should have at least the minimum complement of equipment described below SPANNERS Used to remove caps and tighten hoseline couplings All connections made to both the FDC and the Can be used to pry debris out of the FDC inlet Used if the female FDC connection will not spin freely. Thread a double male adapter and a double female adapter together onto the female connection of the FDC to create a properly operating female swivel STRAIGHT SCREWDRIVER Used to remove debris found in the FDC Used to pry off frangible plastic caps (photo on right) Second Edition 01/11/22 12 FORCEPS Used to remove debris found in the FDC 2 If the clapper valves in the FDC are broken, this cap can be used to plug one side of the FDC to keep water from coming out when the other side is charged It is recommended that firefighters attach supply lines to both sides of the FDC from the start, rather than using the caps If one side is capped and the other side is charged, the capped side becomes useless due to pressure bleeding over to the capped side KNOX KEY WRENCH Used to unlock and remove Knox FDC locking caps if they are used at the FDC connection There is no known way to defeat the Knox caps without the use of this key PICK TOOL Used to remove the weather/dust cover on the Knox FDC lock GASKETS Replace missing or broken gaskets in the FDC for a water-tight connection WEBBING Can be used to marry the hose lines going to the FDC to alleviate excessive vibrations from high pump pressures Using webbing to secure hoselines can help prevent potential injuries if a hoseline were to burst Second Edition 01/11/22 13 2 Engine Blue-green in color Premium all synthetic double-jacketed hose Service pressure rated up to 400 PSI Proof pressure 800 PSI (Proof pressure is the maximum pressure that can be applied to the hose without changing its performance capabilities) Burst pressure rated at 1800 PSI Burst safety factor 3.75 times the service rated pressure Exceeds all NFPA 1961, Underwriters Laboratories, and Factory Mutual performance requirements CFD OPERATIONS High pressure FDC hose may not be loaded in the same spot or the same way on every CFD Engine. Know your truck! The above right photo shows the high-pressure hose on Engine 2 loaded in a flat load with both male couplings on top, allowing the pump operator to pull both hoses at the same time toward the FDC connection Second Edition 01/11/22 14 OVERVIEW Exact but all should have at least the minimum complement of equipment described below Bag is as lightweight as possible while still carrying all necessary equipment Below is an example of the Engine 9 standpipe bag and its contents Specifications Made of lightweight aluminum weighing just 5.5 lbs Non-rising stem Metal to metal seat Pressure rated up to 175 PSI ational Hose/National Standard Thread female free swivel National Hose/National Standard Thread male outlet Use Attach directly to standpipe outlet prior to flushing the system Easily control and set the desired flow to the hose line after the standpipe valve has been fully opened Flushing and dialing in the flow pressure will be much easier with the gate valve than with the standpipe hand wheel, which may be difficult to turn Used to open the standpipe valve if the hand wheel is missing, broken, or will not turn Use caution if using the pipe wrench to open a difficult standpipe valve. The amount of torque created can easily snap a standpipe hand wheel Used to remove the bonnet on the Zurn PRV to expose the field adjustment nut Second Edition 01/11/22 15 -RISE DRAIN ELBOW MODEL 105A Specifications 45° drain elbow National Hose/National Standard Thread female free swivel knurled edge National Hose/National Standard Thread male discharge Pressure rated up to 200 PSI Made of lightweight aluminum weighing just 2 lbs Use Placed before the inline pressure gauge Should be placed so the hose line makes a gradual bend toward the floor to alleviate kinks in the hose coming from the standpipe valve The drain valve helps relieve pressure if the hose line becomes caught under a door or other obstruction Drain valve allows water to be bled in the stairwell after operation, limiting water damage Specifications 0-200 phosphorescent air filled, fully guarded, shock resistant gauge Protective gauge cover Made of hard anodized ELK-O-LITE cast aluminum weighing just 1.6 lbs National Hose/National Standard Thread female free swivel National Hose/National Standard Thread male discharge Use Should be placed after the elbow whenever possible. If the gate valve is partially opened, it creates turbulence in the water. Placing the inline pressure gauge after the elbow reduces the turbulence before it reaches the gauge, leading to more accurate pressure readings Used to ensure the proper pressure is set at the standpipe and to troubleshoot standpipe issues If the proper pressure is showing on the gauge but the nozzle firefighter does not have an adequate stream, the problem is between the standpipe and the nozzle (possible kinks) If the standpipe valve is completely open but the gauge is showing inadequate pressure, a PRD/PRV may need to be removed or adjusted o If this fails to increase pressure, the engine on the FDC will need to begin pumping into the system Second Edition 01/11/22 16 SPANNERS Used to remove caps and tighten hoseline couplings PRV ADJUSTMENT ROD Used to make pressure adjustments on two types of field adjustable pressure reducing valves The Urfa PRV and the Giacomini PRV use the same size adjustment rod Stainless Steel Used to adjust the field adjustment nut on the Zurn PRV after the bonnet is removed Tighten the field adjustment nut to increase standpipe outlet pressure, or loosen the adjustment nut to decrease pressure TUsed to remove the set screw holding the Lexan covering on the Urfa PRV Can be used to remove the external limiting device on some PRDs STRAIGHT SCREWDRIVER Used to pry off orifice plates Used to defeat the weak point of the Lexan covering on the Urfa PRV Used to pry off external limiting devices on PRDs KNOX KEY WRENCH Used to unlock and remove Knox caps if they are used on the standpipe connection There is no known way to defeat the Knox caps without the use of this key Second Edition 01/11/22 17 DOOR CHOCKS/WEDGES Used to hold doors open to prevent pinch points for hose, or to keep self-closing doors from closing and locking behind firefighters Prior to chocking doors open, firefighters must consider the affect this will have on air flow throughout the structure. Chocking doors open on lower floors can significantly influence stack effect in high-rise structures ASSORTED FITTINGS connection other hose connections like normal connection available Used for overhaul operations Allows hoseline to be reduced to 1 3/4" after the fire is extinguished. The smaller hoseline increases mobility during overhaul while decreasing water damage Reducing to a smaller handline after fire extinguishment decreases firefighter fatigue and injury potential during overhaul operations Miscellaneous Some engine companies may carry other adapters, such as pipe thread to national standard hose thread adapters The a ational Pipe Thread National Hose Thread Pipe Thread may be found in older standpipe systems or hose cabinets when PRDs are removed GASKETS Spare gaskets are used to replace any damaged or torn gaskets found during high-rise firefighting operations Gaskets on the inline pressure gauge, elbow, and gate valve should be regularly inspected to avoid having to replace gaskets during high-rise firefighting operations Second Edition 01/11/22 18 OVERVIEW Total length of the high-rise hose pack o o Total dry weight of the high-rise hose pack 55.5 lbs KRAKENEXO Orange in color Service pressure 400 lbs Proof pressure 800 lbs Burst pressure 1,500 lbs Dry hose weight 21.5 lbs various configurations, such as the twin donut in the photo on the right. Some single stack bundle. Every firefighter should be familiar with the way the hose pack is laid out on their engine 2 MERCEDES TEXTILES KRAKENEXO Red in color 17 lbs Service pressure 400 lbs Proof pressure 800 lbs Burst pressure 1,500 lbs 34 lbs Second Edition 01/11/22 19 Dual drive shutoff with full round metal ball Forged aluminum shutoff body Forged metal bale handle Under or over pumping will have repercussions for flow and nozzle reaction in either direction Although this nozzle can be used with various tip sizes, the recommended tip size to be used for high rise applications is a 1 1/16 -375-GAT SHUTOFF Forged aluminum body with a pistol grip a 1 1/ but 16 rise operations. e hose This is an older style nozzle generally found on engines purchased prior to 2019 ELKHART 188 XD SMOOTH BORE 1 1/16 Lightweight aluminum construction Urethane molded bumper (Orange in color) The recommended tip for high-rise applications 240 GPM at 50 PSI NP (87 lbs nozzle reaction) o stretch o o Need 105 PSI at the standpi 1 1/16 50 PSI 240 37 PSI 87 LBS Standpipe Discharge Pressure 90 PSI 50 PSI 240 42 PSI 87 LBS 95 PSI 50 PSI 240 55 PSI 87 LBS 105 PSI Hose Length Nozzle Pressure Second Edition 01/11/22 GPM Friction Loss Nozzle Reaction 20 CHOKER TIPS Fire attack crews may encounter a standpipe equipped with a Factory Pre-Set Non-Adjustable Pressure Reducing Valve that has been improperly set, leaving them with inadequate discharge pressure from the standpipe. If crews encounter low discharge pressures from the standpipe, they should try to troubleshoot the issue (Use the standpipe outlet on the next floor down, use a different stairwell, etc.). The Fire Attack G gain stream reach and velocity when these lower pressures are encountered. Through testing, it is has been determined that the current CFD high-rise hose package will keep an effective stream down to approximately 50 PSI standpipe discharge pressure. Pressures lower than that will begin causing an ineffective fire stream that may not allow crews to initiate a fire attack. handline in place of the 1 1/16 crews to gain increased stream reach and velocity, allowing them to initiate an effective fire attack. 1 1/16 30 PSI 180 20 PSI 52 LBS Standpipe Discharge Pressure 50 PSI 30 PSI 151 20 PSI 40 LBS 50 PSI Hose Length Nozzle Pressure GPM Friction Loss Nozzle Reaction Click here to view a video on Choker Tips When using a choker tip on the handline, there will be a loss of GPM as a tradeoff for the gain in stream reach. The Fire Attack Group Supervisor will need to decide if this amount of water will be enough based on the conditions of the fire floor. A compartmentalized residential high-rise fire may not require the full GPM of the 1 1/16 -rise floor Second Edition 01/11/22 21 OVERVIEW -rise hose pack. These are merely some common examples; how the packs are built and where they are stored will be specific to each engine company k o o Three straps o o Either one or three straps, depending on the packing method Smoothbore nozzle with a 1 1/16 Click here to view Vector Solutions video on High Rise Pack Building Procedures Gather all the necessary equipment listed this squeezes the air out and removes any water. Roll one of the sections with the male coupling inside, and roll one of the sections with the female coupling inside. The compartment on the engine where highallow the pack to be easily removed and replaced in the compartment. If your station does not have a pre-marked measurement (painted lines on the floor), duct tape lines can be placed on the floor as shown in the photo on the right. Second Edition 01/11/22 22 Start with the hose that has the female coupling rolled to the inside. Extend the male coupling 10floor. Doing so allows firefighters to fold the coupling back on top of the pack after it is built; it can then be secured with the straps. On the opposite marker, start by making the first fold at the Fold the hose on top of itself back toward the male coupling at the other end. Keeping the hose rolled while creating the stack helps prevent air from entering the hose. Have a firefighter hold the section of hose and unroll it while others create the folds. Second Edition 01/11/22 23 Lay the hose on top of itself back toward the other end where the male coupling is. Make another fold at the mark on the floor. Firefighters will then continue making the folds on top of each other at the ingle stack. Leave the female coupling on top of the stack; it will be connected to the other section of hose later. Extend the female coupling of the other the mark, close to the male coupling of the first section of hose. Extending the female coupling slightly longer than the male coupling allows the additional length of the nozzle to be accounted for when securing the straps. Create a second stack the same way the first stack was built previously. Place hose is single stacked on top of itself. This will cause the male coupling to end up on top of this stack. If enough firefighters are present, this second stack can be built at the same time the first stack is being built. Second Edition 01/11/22 24 The female coupling on top of the first stack and the male coupling on top of the second stack will be next to each other as shown in the photo on the right. Connect the male and female couplings that are on top of the stacks. Position the married coupling near the end of the stack where it can be secured with a strap. Placing the coupling near the end of the pack (as opposed to in the center) allows the high-rise pack to bend more easily Secure the married coupling with a strap near the end of the hose pack opposite the nozzle, as shown in the photo on the right. Second Edition 01/11/22 25 Fold the remaining female and male couplings over the top of the pack and attach the nozzle if it has not already been connected. Secure the nozzle and the female coupling with another strap. Use the remaining strap(s) to secure the middle of the pack as shown below. Final Product: The female coupling and the nozzle should be at one end of the pack The coupling joining the two sections should be on the other end of the pack Keeping the coupling away from the center of the pack will allow the pack to bend more easily over a All the straps should be oriented in the same direction to allow for easier removal Ensure the straps are secure and that they will not allow the coupling or the nozzle to slip out or fall from the pack Second Edition 01/11/22 26 Twin Donut The only equipment needed to strap. Start by laying the hose out flat with no twists in the hose. Next, divide the hose in half by making so the male and female couplings are even beside each other. At the end of the hose opposite of the couplings, place the strap in the fold as shown in the photo on the right. Begin rolling the fold toward the couplings. The two rolls will begin forming side by side. Second Edition 01/11/22 27 The load will finish with two compact rolls side by side with the couplings next to each other and the Velcro strap in the center of the roll. Secure the Velcro strap over the hose near the couplings to keep them tight to the roll. The Velcro strap also doubles as a carrying strap. Final Product: The pack should be compact enough to fit into the rear compartment on Second Edition 01/11/22 28 Single Stack The equipment required for the Single Stack three Velcro straps. To indicate where to Start the pack by doubling the hose back on top of itself with the male coupling on top as shown in the photo on the right. Leave the male coupling approximately two feet short of the female coupling. Place the tail end of the hose at fold is then made at the other hose doubled on top of itself. Continue to pack the hose in a single stack, making folds on top of themselves finish with the male coupling on top. The female coupling can then be laid over top of the male coupling to protect it. Second Edition 01/11/22 29 The load can then be secured using the three velcro straps. Final Product: compartments on the engine One advantage of this load is that if it is packed correctly, it can fit into the smaller In summary, the methods show here are not the only variations that crews may choose from. Every firefighter should be familiar with how the high rise hose is loaded and where it is placed on their engine Second Edition 01/11/22 30 SPECIFICATIONS Has a patent pending hydraulic stability system that harnesses the reaction force to stabilize the RAM Has four fold-out aluminum forged legs with carbide tipped ground spikes (Rear ground spikes are angled to help with grip) Locking pin holds valve in a closed position to prevent accidental opening (allows RAM to be carried while attached to a charged hose line) Attached safety strap comes with a storage pouch 2Click here to view Brass Tacks and Hard Facts video on RAM XD Has 20 of travel left and right from center use during high rise operations Can be set from 51 to 35 while unmanned Can be lowered from 35 down to 14 when manned PRESSURE AND FLOW Operation is not to exceed 500 GPM and/or 150 psi Comes with 11at To achieve optimal flow, ensure there is 20 feet of hose in a straight line behind the RAM 9.5 lbs of friction loss within the RAM when flowed at 500 GPM ACTIVE SAFETY SYSTEM The RAM XD has a built-in safety system with an upper and lower pivot point. The offset configuration of the two pivot points creates a condition where the reaction force of the water acting upon the upper pivot point (if sufficient enough) will cause the nozzle to rotate upward about the lower pivot point This produces a self-correcting increase in nozzle angle to protect against possibly dangerous unmanned use of the monitor at nozzle angles less than 35 above horizontal The hydraulic effect of the system is active at approximately 350 GPM CONSIDERATIONS FOR HIGH-RISE USE Advanced fire/heavy fire load Good for open area floor plans Unmanned operations can be extended from the RAM after initial knockdown for clean-up and hot spots Remove stream straightener when using RAM for high rise operations Click to view Brass Tacks and Hard Facts video on how to extend a hoseline from the RAM Second Edition 01/11/22 31 SPECIFICATIONS AND PERFORMANCE Rated for flows up to 500 GPM Only 6 PSI friction loss through the unit at 500 GPM Tip can rotate 20 left or right from center Can be operated from 60 to 30 when unmanned Top handle contains a springloaded mechanism that allows the user to travel down to 20 (will self-adjust back to 30 ) PRESSURE AND FLOW Generally comes with triple stacked tips 5 15 18 1Some models may have 115 * *This tip must be pumped at or below 55 psi nozzle pressure. Higher pressures would exceed the GPM rating of the MQA and 2TACTICAL CONSIDERATIONS The MQA has a 2- at 50 psi on a handline CONSIDERATIONS FOR HIGH-RISE USE Advanced fire/heavy fire load where unmanned operations may be needed Good for open area floor plans Excellent option for commercial high-rise fires, but has limited use in residential high-rises If the MQA is equipped with a stream straightener, remove it for high-rise operations. Stream straighteners can become clogged with standpipe debris Hoselines can be extended from the MQA after initial knockdown for clean-up and hot spots A 1MQA 2the unit Second Edition 01/11/22 32

Use Quizgecko on...
Browser
Browser