
Oblique fire hydrant valve Material Aluminum or brass fire fighting equipment Code: JQ0509
Advantages&Feature
Reliable and High Quality Control System
strict conformance with national and international standard
Customer's designs and sticker are Welcome
Reasonable Price
OEM Acceptable
Fire hydrants are actually pretty simple in the way they work. Each
fire hydrant is connected to a large underground pipe that carries
water. To get water out of the hydrant, firefighters use a
five-sided wrench to open up one or more of the covers and connect
hoses to the openings, which are like the spigots on your faucets
at home. Then, they use the same wrench to turn the 'stem nut',
which is like your faucet's cold or hot water knobs. Water comes up
through the pipe, through the openings, and into the hoses that
lead to the fire engines.
The water that comes out of the hydrant is the same water that
comes into homes, businesses, and schools. This water has a water
pressure of about 50-80 psi (pounds per square inch). This pressure
is high enough for everyday use, but is not high enough for use by
firefighters. So, the pumps on the fire engines increase the
pressure. Then, there are smaller hoses that attach to the engines
that firefighters use to fight fires.
Fire hydrants in the cooler states have an added level of
complexity because the temperature often goes below freezing in the
winter. Since water expands when it freezes and turns to ice, the
hydrant could crack if there is water in the hydrant when it
freezes and expands. Also, if there was a fire during the freezing
weather, the hydrants wouldn't work, because there would be a huge
chuck of ice clogging the hydrant.
To avoid the problem of freezing water, many hydrants are 'dry
barrel hydrants', which means that no water stays in the upper
section of the hydrant when the hydrant valve is turned off. The
valve that controls the water flow is below ground and there is a
long rod that connects the stem nut to the valve. Next to the
valve, there is a drain hole to let water drain out of the barrel
of the hydrant after firefighters turn the valve off. The pipe that
holds the water is buried deep enough so that it never freezes. (A
bit of trivia: Because of this mechanism, it's near impossible for
a car to run over a fire hydrant and cause it to gush water as they
do in the movies, since there usually is no water in the upper part
of the barrel.)
A: We are factory.
A: Generally it is 5-10 days if the goods are in stock. or it is 30 days if the goods are not in stock, it is according to quantity.
A: Yes, we could offer the sample for free charge but do not pay the cost of freight.
A: Payment<=1000USD, 100% in advance. Payment>=1000USD, 30% T/T in advance ,balance before shippment.
Our Services
1.“Competitive prices,on-time deliveries, high quality and good services”is our
business principle.
2. Our own factory has been specialized in this field for many years.Customized
designs are welcomed.
3. Small order and mixed items are available.
CONTACT :
Company: YUYAO JINQIANG FIRE FIGHTING EQUIPMENT FACTORY
Add: Huajia Village,Huangjiabu Town,Yuyao City,Zhejiang Province ,China
website: www.jqfire.com
Sales manager: Amy Fu
Email: jqamyfu@gmail.com
Tel: 0086-13858403138
Shaoxing Jinqiang Fire Fighting Equipment Co.,ltd.