d_manual:d7
Differences
This shows you the differences between two versions of the page.
| d_manual:d7 [09/04/2025 13:29] – created Lt. Kirk | d_manual:d7 [09/04/2025 13:49] (current) – Lt. Kirk | ||
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| =====D-7 Hose and Hose Testing====== | =====D-7 Hose and Hose Testing====== | ||
| ===Maintenance Manual=== | ===Maintenance Manual=== | ||
| - | ==Date Revised: | + | ==Date Revised: |
| < | < | ||
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| - | =====HOSE===== | + | ===Definitions=== |
| - | \\ | + | |
| - | ====Definitions==== | + | |
| * **Fire Hose** is a flexible conduit for moving water. It is constructed with one or more jackets, (internal layers), and an approved non-permeable lining. | * **Fire Hose** is a flexible conduit for moving water. It is constructed with one or more jackets, (internal layers), and an approved non-permeable lining. | ||
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| - | ====Double Jacketed Hose Types==== | + | ===Double Jacketed Hose Types=== |
| * 1 3/4” Attack Line | * 1 3/4” Attack Line | ||
| * 75' lengths with a 1 1/2” NST Couplings\\ \\ | * 75' lengths with a 1 1/2” NST Couplings\\ \\ | ||
| - | * Normally pre-connected; | + | * Normally pre-connected; |
| * First bank with 2 lengths for a total of 150' | * First bank with 2 lengths for a total of 150' | ||
| * Second bank with 3 lengths for a total of 225’ | * Second bank with 3 lengths for a total of 225’ | ||
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| * 3” Supply Line | * 3” Supply Line | ||
| - | * Attack | + | * Supply |
| * 50’ with 2 1/2” __Non__-National Standard Coupling (Toledo Thread) | * 50’ with 2 1/2” __Non__-National Standard Coupling (Toledo Thread) | ||
| * Various shorter lengths called “Cheaters” | * Various shorter lengths called “Cheaters” | ||
| - | * Engines carry 500’ | + | * Engines carry 300’ |
| * 5” High Pressure LDH Double Jacketed, Woven Outer Jacket, PVC/Nitrile rubber lined. | * 5” High Pressure LDH Double Jacketed, Woven Outer Jacket, PVC/Nitrile rubber lined. | ||
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| - | ====Single Jacketed Hose Types==== | + | ===Single Jacketed Hose Types=== |
| * 5” LDH Single Jacketed Supply Line (Rubber Outer Jacket) 100' lengths with 5” Storz couplings. | * 5” LDH Single Jacketed Supply Line (Rubber Outer Jacket) 100' lengths with 5” Storz couplings. | ||
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| - | =====ANNUAL HOSE TEST===== | + | ===ANNUAL HOSE TEST=== |
| All fire hose assigned to fire companies is to be tested under the direction of the Battalion Chiefs. The annual testing of hose shall be completed during the month of May. | All fire hose assigned to fire companies is to be tested under the direction of the Battalion Chiefs. The annual testing of hose shall be completed during the month of May. | ||
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| If hose fails physical inspection, it shall be removed from service and sent to the Maintenance Bureau. | If hose fails physical inspection, it shall be removed from service and sent to the Maintenance Bureau. | ||
| - | * Individual [[https:// | + | |
| + | | ||
| * Suction hose test shall consist of a careful examination of jacket, swivels, gaskets, and threads.\\ \\ | * Suction hose test shall consist of a careful examination of jacket, swivels, gaskets, and threads.\\ \\ | ||
| * Hose I.D. numbers engraved into male couplings shall be examined for legibility. | * Hose I.D. numbers engraved into male couplings shall be examined for legibility. | ||
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| - | ====Hose Testing Procedures==== | + | ===Hose Testing Procedures=== |
| * Service Test Pressures for TFRD Hose:\\ \\ | * Service Test Pressures for TFRD Hose:\\ \\ | ||
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| * A test location shall be selected that allows connection of the hose testing pressure source (apparatus pump) to an adequate water source (hydrant). | * A test location shall be selected that allows connection of the hose testing pressure source (apparatus pump) to an adequate water source (hydrant). | ||
| - | * A hose test valve consisting of a fire department gate valve with a 1/ | + | * A hose test valve consisting of a fire department gate valve with a ¼" |
| * Fill hose with water using hydrant pressure. After the hose is filled with water and all air has been expelled from the hose, close the nozzle or test cap valve slowly, then the hose test valve (if used) shall be closed. If test valve is not used, cut back the discharge gates to almost nothing. If a section should burst, the hose should not whip as much as it would with the gate fully open. Check all couplings for leakage and tighten couplings with a spanner wrench where necessary. Mark hose at edge of the coupling to determine if the coupling has slipped after testing. | * Fill hose with water using hydrant pressure. After the hose is filled with water and all air has been expelled from the hose, close the nozzle or test cap valve slowly, then the hose test valve (if used) shall be closed. If test valve is not used, cut back the discharge gates to almost nothing. If a section should burst, the hose should not whip as much as it would with the gate fully open. Check all couplings for leakage and tighten couplings with a spanner wrench where necessary. Mark hose at edge of the coupling to determine if the coupling has slipped after testing. | ||
| - | * Raise pressure slowly to 250 psi for Double Jacketed hose (Woven Outer Jacket), 200 psi for standard Single Jacketed (Rubber Outer Jacket) LDH. After the correct pressure is obtained, hold the test pressure for **five (5) minutes**. During this time, walk down the line and inspect for coupling leaks or pinhole leaks. NEVER straddle a hose under pressure. Personnel should keep a distance of at least fifteen (15) feet from the hose, except as necessary to inspect couplings. | + | * Raise pressure slowly to 250 psi for Double Jacketed hose (Woven Outer Jacket), 200 psi for standard Single Jacketed (Rubber Outer Jacket) LDH. After the correct pressure is obtained, hold the test pressure for five (5) minutes. During this time, walk down the line and inspect for coupling leaks or pinhole leaks. NEVER straddle a hose under pressure. Personnel should keep a distance of at least fifteen (15) feet from the hose, except as necessary to inspect couplings. |
| * After five (5) minutes, reduce engine to idling speed, close hydrant, disengage pump, and open drain valve on engine to reduce pressure in lines under test. When pressure drops below 100 psi, open nozzle slowly to finish relieving pressure, close gates, and disconnect lines. | * After five (5) minutes, reduce engine to idling speed, close hydrant, disengage pump, and open drain valve on engine to reduce pressure in lines under test. When pressure drops below 100 psi, open nozzle slowly to finish relieving pressure, close gates, and disconnect lines. | ||
| - | * Any burst lengths, leaking couplings, slippage of couplings, pin holes, or lengths with weak spots should be taken out of service; identify affected area by tying a rag around the area and send to the Maintenance Bureau, along with the [[https:// | + | * Any burst lengths, leaking couplings, slippage of couplings, pin holes, or lengths with weak spots should be taken out of service; identify affected area by tying a rag around the area and send to the Maintenance Bureau, along with the Hose Repair Request (300-2), available through TFRDweb forms. |
| * After testing, hose should be properly drained and dried. | * After testing, hose should be properly drained and dried. | ||
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| - | ====Retesting of Hose That Has Been Repaired==== | + | ===Retesting of Hose That Has Been Repaired=== |
| - | All hose that has been repaired shall be tested ASAP and the results recorded. All hose returned from repair shall be tested in a safe manner following the previously described procedures. The Maintenance Bureau does not have the facilities or the manpower to test all hose that is repaired. It is, therefore, the station Captain’s responsibility to see that this is completed and recorded on the previously mentioned inventory [[https:// | + | All hose that has been repaired shall be tested ASAP before the hose is put back in service |
| - | + | ||
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| - | ====Annual hose inventory==== | + | |
| - | * Annual hose inventory shall be completed after all testing is complete within the station. | ||
| - | * Hose inventory form which includes inventory, testing and repair of all fire hose can be found on [[https:// | ||
| - | | + | **Testing |
d_manual/d7.1757010597.txt.gz · Last modified: by Lt. Kirk