City Coal Gas Non-Rising Stem Quick on/off Gate Valve (GAMZ48W/GAMZ548W/GAMZ948W)

Outside screw city coal gas quick on/off gate valve
General.
The applicable medium of city coal gas quick on/off gate valve can be blast-furnace gas,coke oven gas,producer gas,water gas,oil gas or clean gas such as natural gas,mine gas,etc.as a necessary equipment of deliver-supply network, It has a wide range of application in many industries such as coal gasification,metallurgy,coal carbonization.
 
Gate valve is one of the most common shut-off valve, it's mainly used for connecting or cutting the medium in pipelines;It can be used with a wide range of pressure,temperature and size,especially fit for middle and large pipelines.
 
The Stem of non-rising stem gate valve just rotate when open or close the valve,and the flashboard can go up and down inside the valve body in the meantime,so the height of this kind of valve is small.But in order to judge the on-off and position of flashboard,usually,a position indicator is installed on the bonnet.Owing to these features,non-rising stem gate valve is applicable for condition with small space or large dust,such as ship,trench,etc.
 
Parallel double flashboard structure is usually sealed by top cuniform,the relative movement between the sealing face is small,so it's not easy producing abrasion, usually used for low pressure gate valve.
 
Feature.
1.Sealing face using grinding process,sealing is really reliable,this structure can eliminate dirt on sealing face automatically when using,ensure the sealing tight.
2.The stem adopt double screw and large lead structure,can realize the quick on/off of valve.
3.Adopt high performance packing,easy operation.
4.The valve bottom has pollution discharge box,can use pipe cleaner,convenient for cleaning dirt.
5.Bonnet can mount lifting ring screws if need so that it will be very convenient for transport and installation.
6.Small fluid resistance.The bore of gate valve is straight,medium doesn't change flow direction when flow through the bore,thus,the fluid resistance is small.
7.Easy open and close.Moving direction of flashboard and flow direction of medium are vertical.Comparing with globe valve,it's more easy to open and close.
8.The flow direction of medium is totally unrestricted.The medium can flow through two sides of gate valve in any direction,no matter which side the medium flow through,it can realize on/off purpose.Easy installation,applicable for pipelines in which flow direction may change.

Our Services
Pre-sale service:
1.We have full stock and can deliver within short time.
2.OEM and ODM order are accepted, Any kind of logo printing or design are available.
3.Good Quality + Factory Price + Quick Response + Reliable Service, is what we are trying best to offer you.
4.All of our products are produced by our professional workman and we have our high-work-effect foreign trade team, you can totally believe our service.   
After you choose:
1. We will count cheapest shipping cost and make invoice to you at once.
2. Check quality again, then send out to you at 1-2 working day after your payment
3. you the tracking no., and help to chase the parcels until it arrive you.
After-sale service:
1.We are very glad that customers give us some suggestion for price and products.
2.If you have any question,please contact us freely by or Telephone.