big diameter discharge hose vs fire hose

Discharge Hose (1 inch - 12 inch) | Factory Direct Hose | 2

Discharge Hose. Factory Direct Hose offers the best prices on top quality discharge hose ranging from 1 inch all the way to 12 inch. You can purchase lay flat irrigation hose by the foot or save even more when you purchase by the roll . We also offer hoses that are asseled with either camlock hose fittings or male/ pipe threaded fittings.

Large Diameter Industrial Hose - Rawhide Fire Hose

LDH fire hose is big-flow, low-pressure hose, which is both its defining feature and the reason for its popularity. Friction loss in large diameter fire hoses is entirely dependent upon flow, not pressure, so the more capacity (GPM) a hose can carry, the less force (PSI) is needed for the delivery. This type of hose can then deliver a greater water volume over greater distances, …

Fire hose - Wikipedia

Attack hose is a fabric-covered, flexible hose used to bring water from the fire pumper to the nozzle. This hose ranges in nominal inside diameter from 1.5 to 3 in (38 to 76 mm) and is designed to operate at pressures up to about 400 psi (2,760 kPa). The standard length is 50 ft (15.24 m). Supply and relay hoses.

Fire Hose Basics - Fire Department families Home Page

Fire hose is the most used item in the fire service. Larger diameter hose can carry more water at lower pressures. Smaller diameter hose can carry less water and will require higher pressure. Hose diameter is the most important factor in determining volume of water delivered. Attack lines are Booster Lines, 1 3/4”, 2 1/2”. Supply Lines are 3", 4", 5" and 6". Fire hose is manufactured …

LARGE-DIAMETER HOSE: ADVANTAGES AND …

Large-diameter hose is more expensive than smaller hose; 4-inch polymer hose is about 21/2 times more expensive than 2 1/2-inch woven jacket hose. But several factors offset the cost. One is …

Hoses - Water Flow and Pressure Losses

Example - Water Flow through a Hose and Pressure Loss. 2 gpm (7.6 liter/min) flows through a 1/2" garden hose with length 82 feet (25 m). From the diagram above the pressure loss per 100 feet can be estimated to 5 psi. The pressure drop in the hose can be calculated as. (5 psi/100 ft) ( (80 ft) / (100 ft)) = 4 psi (0.28 bar)

Technical TECHNICAL

correct hose size. How to use the nomogram: Determine the proper flow rate your system requires, then connect a straight edge from the selected flow rate to the recommended velocity range. The required hose I.D. will appear at the intersection of the straight edge and the center column. If the straight edge passes through the scale between sizes listed, use the next larger …

How to Measure the Diameter of a -owners sometimes find that …

Fire Hose Fittings: A Guide to Fire Hose Couplings and

18/8/2014· A hose coupling is a fire hose fitting that is loed on the end of a hose. It couples, or connects, with a hose, tap, or water source, and is typically made of brass, stainless steel, or aluminum. The key characteristics to understand with regard to proper thread attachment are size (3/4” to 6”), thread standard, and gender.

Large Diameter Hose - Burlington County Fire Chiefs

17/10/2019· 1,500 GPM fire pump. Minimum of 1,000 feet of 5-inch hose with stortz couplings. Minimum of one large diameter intake with bleeder, with safety pressure relief valve. Minimum of one large diameter discharge. Each pipeline must be equipped with at least 60’ of hard suction tubes with a barrel strainer or floating dock.

Identifying different types of fire hose – …

The large diameter can carry high pressure water. Small Diameter Fire Hose: A Small Diameter measures between 1 and 2.5 inches in diameter. The size of the small diameter makes them perfect for booster lines or attack lines. Main use for Small Diameter Fire Hose: This is perfect for a couple of firefighters as they move through a buildings

Hoses: Large and Small, from LDH to Forestry Lines - Fire

1/6/2019· 2 North American Fire Hose makes four versions of forestry hose: NAFH-187 Type I and Type II and Outback 600™ and 600HD. 3 This pumper is being supplied by 5-inch LDH made by North American Fire Hose. 4 Key Hose Inc. has just released a 2¼-inch version of its TRU-ID™ attack line to complement its 1¾-inch and 2½-inch TRU-ID hoses.

Hose Flow & Sizing - Green Line Hose

Where pressure drop must be reduced, hose size must be increased. Figures are to be used as a guide only, since the type of fittings used, variance of hose I.D., and orifice restriction all influence the actual discharge. Water Hose Flow Rates… Air Line Sizing PSI at Hose Nominal Hose Diameters Inlet 1/2 5/8 3/4 1 11/4 11/2 2 21/2 3 4 6 8 20 4 8 12 26 47 76 161 290 468 997 …

The 1.75” Hose

The fire streams project team tested and purchased new hose (Key Big 10) that has a 20-25 psi friction loss per 50’ and has the flow characteristics we were seeking. It proved to have the same pump discharge pressure needed as our current set up. The fire streams project team then created various testing criteria that evaluates future purchases to meet the departments …

Siamese Storz Connections | American Fire Supply

Siamese storz connections are simply a coination of a storz with a traditional threaded siamese (2-way) FDC. Generally mounted to the exterior wall of a building, siamese storz connections give fire fighters the option of attaching a large diameter hose with storz couplings or a smaller diameter fire hose with 2½" threaded couplings. The one clapper design will close off the

Large-diameter fire hose: How to use, care for this hoseline

20/11/2020· Fire hose is generally considered to be LDH when its interior diameter exceeds 3½ inches. Fire and departments in the United States typically use LDH with diameters of …

Maximum flow for supply hose? - Firehouse Forums

25/1/2008· For 100psi discharge pressure into 1000 ft of hose, with 20 psi residual at the relay engine, the flows should be approximately as follows: 2 1/2" - 180 gpm; 3" - 283 gpm; 4" - 565 gpm; 5" - 1095 gpm 6" - theoretically 1250gpm, but will probably approach 1450 gpm depending upon transfer case ratio and motor horsepower / torque curve. Since a gasoline engine has a …

Flow Capacities of Hose Asselies - New-Line

Flow capacities of hose asselies at suggested flow velocities. The chart below is designed and provided as an aid in the determination of the correct hose size. Example: At 13 U.S. gallons per minute, what is proper hose size within the suggested velocity range for pressure lines? Solution: Loe 13 U.S. gallons per minute in the left hand

Dash Sizing for Hoses and Tubes Explained

Each dash size corresponds to a progressively larger diameter, measured in sixteenths of an inch. “-1” is 1/16, “-2” is 2/16, and so on. In this case, -6 hose would indie a hose with an inside diameter of 6/16”, or 3/8". In another example, a -10 tube would indie a tube with an outside diameter of 10/16", or 5/8".

Backwash hose | Trouble Free Pool

5/7/2017· The pipe from the filter has a reducer fitting on the end which measures a 1.5" diameter. Sooooo, do I need a 1.5 or 2" hose (and have not seen any 2.5" ones, but the current one is 2.5 across (when flattened). It appears stretched perfectly over the end of the reducer, and not bunched up (as i would expect of a larger diameter hose clamped onto a smaller pipe). Of …

ANATOMY OF A FIRE HOSE COUPLING - David''s Fire

30/12/2020· ANATOMY OF A FIRE HOSE COUPLING. Before you start to couple fire hose you need a good understanding of what an expansion ring coupling is, the names of its parts and how it works. The concept is simple: a brass ring is expanded inside the fire hose which traps it against the coupling bowl. All critical parts are inside the coupling. To the left is a set of …

China Slurry Hose, Slurry Hose Manufacturers, Suppliers

Wear Resistant Slurry Suction and Discharge Hose Rubber Slurry Hose Big Diameter High Pressure Mud Slurry Dredging Hose. FOB Price: US $ 3000 / Piece Min. Order: 1 Piece. Temperature Classifiion: Medium Temperature Piping; MPa Classfiion: Medium Pressure Piping; Material: Aluminium Alloy; Standard: ASTM, GB, API, DIN, JIS; Diameter: 426mm; …

White 2 1/2" x 50'' Double Jacket Mill Hose (Alum NH Couplings)

18/12/2021· Price:Price:$167.49. Our 2 1/2 inch double jacket lay-flat mill hose is excellent for light industrial and construction appliions where medium water pressure is used. This hose is constructed of an SBR synthetic rubber tube and a double layer of 100% polyester woven jackets. The most common hose, thread and couplings in use by fire

INDUSTRIAL HOSE -Letone

Big size (up to 12"), ultra-abrasion, high/low temperature and corrosion resistant, and multiple length choices, Letone industrial hose are ideal for industries like construction, chemical, bulk material delivery, steel mills, oil & gas, machinery and equipment manufacturing, high pressure cleaning, F&B and appliions of extremely working environment.

JGB’s Large Diameter Hose (LDH) division - JGB Enterprises

Fire Hose. Emergency Response Hose. Waste Hauling & Septic Products. Concrete Placement Products . Specialty Hoses. Hose Products & Accessories. Call Us: (315) 451-2770. Email Us: Request a Quote. Large Diameter Hose (LDH) ×. JGB’s Large Diameter Hose (LDH) division was born from our clients demand for quick response asselies. From standard Sewer By …

Standpipes and Hose Systems CHAPTER 3 - NFPA

test and drain connection Drain riser Fire hose valve Source: NFPA 14, 2010, Figure A.7.10.1.3.1(a). 74 Chapter 3 Standpipes and Hose Systems Program for Individual Systems Plans accurately showing the details and arrangement of the standpipe system shall be furnished to the authority having jurisdiction prior to the installation of the system. [NFPA 14-10: 8.1.1] …

Double Jacket Fire Hose Comparison: 2 inch fire hose vs

With the increase in diameter, a 100-foot length of 400 PSI 1 3/4-inch Superior Double Jacket Fire Hose jumps in weight up to 34 pounds dry, making it almost 5 lbs heavier than the same length of 1 1/2-inch hose. However, the output of water increases by 20 percent due to the drop in friction loss and increased diameter.

Large Diameter Hose Products - JGB Featured Markets - JGB

JGB Featured Markets - Large Diameter Hose Products. JGB Enterprises, Inc. is a hose asseler of hydraulic and industrial hoses and hose asselies for all appliions. We assele a full line of specialized hoses and fittings, including hydraulic hose, water hose, flexible hose, special appliion hose, and braided hose. JGB Enterprises has long standing …

Comparing Four- and Five-Inch Large-Diameter Hose - …

1/7/2014· LDH can be used for either supply lines or discharge lines. Five-inch hose flows twice as much as four-inch hose. Before comparing four- and five-inch hose in specific supply line evolutions, users need to understand the fire …

Products - China Fire Hose Couplings , Industrial

Products - Winocean is the China''s leading coupling manufacturer with high standard, high quality and cost effectiveness ,our main products are fire fighting hose coupling , industrial coupling, marine firefighting equipment with CCS certifie . such as storz coupling, gost & rotta coupling, NOR norwegian coupling, finnish coupling。