Gate Valve of Ductile Iron Cast Iron Made in China

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China main port
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TT or LC
Min Order Qty:
500 set
Supply Capability:
100000 set/month

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Product Description:

1.Structure of Gate Valve Description:
A gate valve, also known as a sluice valve, is a valve that opens by lifting a round or rectangular gate/wedge out of the path of the fluid. The distinct feature of a gate valve is the sealing surfaces between the gate and seats are planar, so gate valves are often used when a straight-line flow of fluid and minimum restriction is desired. The gate faces can form a wedge shape or they can be parallel. Gate valves are primarily used to permit or prevent the flow of liquids, but typical gate valves shouldn't be used for regulating flow, unless they are specifically designed for that purpose. Because of their ability to cut through liquids, gate valves are often used in the petroleum industry. For extremely thick fluids, a specialty valve often known as a knife valve is used to cut through the liquid.

2. Main Features of the Gate Valve:
The sealing surface of valve seat and gate is overlaid (surfaced) with hard alloy, resistant to corrosion and abrasion.Valve seat, gate and stem are sealed with imported lip-shaped combined seal structure, so they are safe and reliable, and the switching torque of valves is low.
Simple and safe design of valve gate and seat, makes it easy to change without special tools.
Non-rubber seal effectively protects valve chamber from mud, sand and rock, etc.
Stem sealing can be changed under pressure.
Stem is designed to be rising stem and non-rising stem, with a clear sign for valve opening.
Drive mode falls into manual, hydraulic and gear.
3. Images of the Gate Valve
 

4. Specification of the Gate valve
Working medium: water, non-corrosive liquid, saturated vapor (≤ 0.6MPa)
Operating temperature: -20 °C ≤ t ≤ 135 °C
Stem: non-rising stem
Body material:Brass/Gray Cast Iron
Connection:flanged
cast iron gate valve
1.Reliable sealing
2.Good performance
3.Easy to open and close
4.Small volume

5.FAQ
1. What's are the characteristics of gate valve?
The distinct feature of a gate valve is the sealing surfaces between the gate and seats are planar, so gate valves are often used when a straight-line flow of fluid and minimum restriction is desired. The gate faces can form a wedge shape or they can be parallel.
2. What is the work principle of gate valve ?
 The gate faces can form a wedge shape or they can be parallel. Gate valves are primarily used to permit or prevent the flow of liquids, but typical gate valves shouldn't be used for regulating flow, unless they are specifically designed for that purpose. Because of their ability to cut through liquids, gate valves are often used in the petroleum industry.
3.  What is the structure?
Bonnets provide leakproof closure for the valve body. Gate valves may have a screw-in, union, or bolted bonnet. Screw-in bonnet is the simplest, offering a durable, pressure-tight seal. Union bonnet is suitable for applications requiring frequent inspection and cleaning. It also gives the body added strength. Bolted bonnet is used for larger valves and higher pressure applications.

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Q:Hot and cold faucet how to take water pipes
Requires a solid, because the kitchen faucet high frequency, coupled with being moved to move, easy to loose, so the lock nut must be tightened. At present, the market appeared some of the leading screw for the nut to increase the fixed, this solid effect is very good, if you can solve the problem of water to pull, the future will be a popular trend.
Q:Which brand of cleanser is good?
Johnson & Johnson
Q:Will the vegetable basin faucet fixation method?
Take the faucet down, add a rubber gasket in the place of the gasket, the size and gasket almost on the line, if not you can use the waste of the bicycle tube to do their own one, one is not enough with two, according to the original tightened on the line.
Q:What is the reason why the kitchen faucet is not hot water?
The balcony and the bathroom are hot water, proves that the pressurized bar is no problem! There may be a plug in the kitchen
Q:Help! Faucet replacement problem?
First, do the WD-40 thing. Spray the dickens out of it and leave it for an hour or so to allow the WD-40 to work through the rust. Second, go back to the hardware store and get a basin wrench. That is a special tool made for taking that pesky nut off in the tight spacing. They are not expensive and beat the heck out of bashing your knuckles trying to get another tool in there. Much less frustrating also! And while you're working under then, wear safety glasses if you don't wear glasses to protect your eyes from getting rust, rust with WD-40 in them. When you crack that nut loose, there will be all kinds of particulate material raining down. You don't need to get something in your eye and scratch your eye either!
Q:Kitchen faucet poor flow how to do
Faucet in front of the mouth with a wrench can be screwed down, you pull the net from the outside do not pull down, inside the white plastic thing called foam, is to prevent the water splashing around. The water is small it is blocked by impurities, screw down to clean the impurities just fine. Unscrew the installation without the need for raw tape, itself has a gasket
Q:The water is also small, how to remove the dust inside the faucet
Faucet outlet has a bubbler, you can screw down to clean impurities
Q:My home water heater connected to a water pipe, with a faucet, but often Weng Weng sound, as if the air is not coming out, ask the master in the end what the problem
1, the water pressure is too low 2, the bubble is broken 3, the outlet is loose
Q:Is the basin faucet to the angle valve?
Can not do, installed the angle valve, then easy to repair the tap point, directly off the angle valve can be off the water, and no angle valve can only go to the total gate
Q:How the kitchen faucet installed through the pipeline did not install the faucet
1. into the room before the main water pipe has a general gate, installed before it shut off, installed after it opened the water. 2. The end of the pipeline should be sealed with a plug, with a wrench anti-clockwise unscrew, the new faucet outside the tooth parts clockwise wrapped around a few times the water and then install the water pipe. 3. your outlet still need to lengthen a short straight tube, or water will be overflow, row out.

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