Forged steel gate valve
catalogue:
Forged gate,globe,check valve.pdf
Brief introduction for the API gate valve.
The open-close part name is gate,that this forged gate valve only can fully open or fully closed, they can not adjust the flow,the gate have two sealing face and the sealing face are wedge type,the gate solid gate type ,the forged gate valves only have small size. the biggest size up to 3"(DN80) and highest pressure can arrive to 3000LB(PN500).about the type of connection between the body and bonneet, it also have three type, one is bolt bonnet,anther is welded bonnet and the third type is pressure seal bonnet. they are use for the different pressure.
The kind of this Forged steel gate valve.
We can divided into two types according to the type of stem, one is non-rising stem gate valve, anther is rising stem gate valve,non-rising stem gate valve is mean that the screw of stem are in the body , we don't see the stem rising or decline when we opened and closed the gate valve, rising stem gate valve is mean that the screw of the stem are out of the body,we can see the stem rising or decline when we opened and closed the gate valve .
We also can divided into two types according to structure of the gate, one type is wedge gate valve, anther type is flat gate valve,wedge gate valve is mean the sealing face of the gate is wedge type(it have angle between them),flat gate valve is mean the sealing face of the gate is parallel type,wedge gate valve must rely on exogenic action to mechanical seal,but flat gate valve can rely on pressure of the medium to seal. so teh wedge gate valve have the bigger market than flat gate valve.
Advantage for the gate valve
All of the gate valve are full bore,so they have the very small fluid resistance and the sealing face is very resistant to shock and wear.
The flow of medium is not restricted when valves are installed in the pipeline.they have simple structure and have the short face to face.so the price is lower than ball valve.
Matters needing attention during installation
The workers must clean up the impurities in the piping and valves before the gate valve installed on the piping line.
Features: Gate Valve 800Lb Standard Material Specifications
Dimensions (mm) and Weights (Kg)
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Features:
Dimensions (mm) and Weights (Kg)
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