What is a Dutchman fold?

What is a Dutchman fold?

DUTCHMAN- A. short fold or reverse bend used to allow couplings to pay out without them turning over. Same as a “dog-leg.”

What is a booster line?

Booster Hose (aka Red Line) is a rubber-covered, thick-walled, flexible hose used to fight small fires. It retains its round cross-section when it is not under pressure and is usually carried on a reel on the fire truck, rather than being stored flat.

What is LDH hose?

LDH is big-flow, low-pressure hose, which is both its defining feature and the reason for its popularity. Because friction loss in fire hose is entirely dependent upon flow, not pressure, the more capacity (gpm) a hose can carry, the less force (psi) is needed for the delivery.

What is a soft sleeve hose?

The soft sleeve hose transfers water between the fire engine and the water source; whether it be a hydrant, tanker, another engine, or a body of water.

What is the function of hose couplings?

A hose coupling is a type of fitting located on the end of the fire hose, which is typically made of steel, brass, or aluminum. The coupling has threading on each end, one female end and one male end, allowing the hose to connect with another hose, tap, or other water source.

What is a double jacket fire hose?

The double jacket hose has an extra layer (“jacket”) of woven fabric that boasts a higher wearability in comparison to the single jacket hose. It has an impressive burst test of 1,200 PSI and a 400 PSI service test. In comparison, a single jacket fire hose is burst tested to 900 PSI.

How fast does the water come out of a fire hose?

The water that comes out of the hose may be moving fast for a person, 30-80 miles per hour, but this is very slow in comparison to the bullet, which will be travelling at ~880 mph. The speed of the bullet will vary far more than the speed of the water.

What does 100 feet of LDH weigh?

Also referred to as LDH (large diameter hose), each 100-foot section of dry hose weighs about 102-pounds, and when filled with water, each foot weighs nearly10-pounds.

What is considered large diameter hose?

Large diameter hose is: Generally longer than smaller diameter hose, with 100 feet the standard length. Heavier than smaller diameter hose to deliver more water volume over longer distances.

How do you tell the difference between fire hose sizes?

The general rule that most firefighters can remember is small fire equals small water and big fire equals big water. Small water refers to your basic 1½- or 1¾-inch hoselines; the big water refers to the 2½-inch hoseline. With a 1½-inch nozzle, the average water delivery rate can be between 150 to 200 gpm.

How many types of couplings use in hose fittings?

Available sizes – 3/4” to 6” Type of pipe connection – threaded & flanged. Pressure class – 150# & 300# (Working pressure up to 25 bar) The material of Construction – Brass, SS, Aluminium, Hastelloy C & other on request.

What causes water leak from back of engine?

Could be a leaky heater hose, or perhaps the heater core itself, meaning the pipes that poke through the firewall, into the engine bay You might even have to put the truck on jack stands, and look from underneath I concur w/the above post by db4690, more likely an intake manifold gasket than the head gasket.

What kind of hoses are used in a tank?

One, used in the tank, is a somewhat flexible spring-reinforced pleated tube with smooth cuffs at each end. The other, more familiar type used under the car and sometimes under the hood, is a semirigid, thick-wall nylon tubing usually equipped with metal or barbed-plastic fittings or connectors.

What kind of hoses should I replace in my car?

Straight hoses, often purchased and replaced as “bulk” items, may include some heater or bypass hoses as well as a few radiator hoses. Many transmission cooler hoses, fuel hoses, vacuum hose and the like are routinely replaced or repaired from bulk stock.

Can a fuel line be used as a power steering hose?

Fuel lines are only the tip of the proverbial iceberg. There are further problems with other types of hoses. For instance, can you use an engine or transmission oil cooler hose in a power steering application? The answer is . . . maybe, but probably not.

What causes poor water flow in the engine?

A lot of water should be pushed out when the engine is revved. The pump should make at least 10 psi. This gives the relative heath of the water pump. The most common cause of poor flow in a Subaru is air trapped in the engine block. I would flow test the radiator and visually inspect the radiator interior. The flow tests is not very helpful.

Where is the lower radiator hose located on a car?

From the bottom of the radiator, is the lower radiator hose that is directed to the water pump. Powered by the vehicle’s water pump, the engine coolant loses its heat after passing through the radiator.

What kind of exhaust hose does West Marine use?

Finding the right part has never been easier. Series 250 ShieldsFlex II Marine Water/Exhaust Hose with Wire… 30 Degree Exhaust Elbow Adapter, Compatible with 3″…

Do you have to run garden hose to flush outboard?

Built-in garden hose attachments are a standard part of many outboards manufactured in the past decade or so. These attachments make flushing easier, because the engine usually doesn’t need to be running (and in some cases, should not be) to accomplish the flushing procedure.