Oblique fire hydrant valve Material Aluminum or brass fire fighting equipment Code: JQ0509
Advantages&Feature
BRASS GATE VALVE
Material: Brass, Copper alloy,
Standard thread:BSPT 2", 2.5" + Storz coupling
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.)
Q: Are you trading company or manufacturer ?
Q: How long is your delivery time?
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.
Q: Do you provide samples ? is it free or extra ?
A: Yes, we could offer the sample for free charge but do not pay the cost of freight.
Q: What is your terms of payment ?
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
amy@jqfire.com
Tel: 0086-13858403138
Your message must be between 20-3,000 characters!
