Stainless Steel Precision Casting/investment Casting Globe Valve
Product Features
Nominal Pressure: 1.6-6.4Mpa
Application Temperature: ≤200~350℃
Application Medium: Acetic acid, water, oil, gas etc
Product Description
The opening or closing stroke of the valve stem is relatively short, and it has a reliable cut-off action. This type of valve is suitable for cutting off or regulating throttling of the medium.
In the open state, there is no longer any contact between the valve seat and the disc seal, so there is less mechanical wear on the sealing surface. Since the seat and disc of most globe valves are easier to repair or replace the seals without removing the entire valve from the pipeline, it is suitable for the occasion where the valve and the pipeline are welded together. When the medium passes through this type of valve, the flow direction is changed, so the flow resistance of the globe valve is higher than that of other valves.
Product Features
1. The structure of the stop valve is simpler than that of the gate valve, and it is more convenient to manufacture and maintain.
2. The sealing surface is not easy to wear and scratch, and the sealing performance is good. There is relatively no sliding between the valve disc and the sealing surface of the valve body when opening and closing, so the wear and scratch are not serious, and the service life is long.
3. The stroke of the valve disc is small when opening and closing, so the height of the stop valve is smaller than that of the gate valve, but the structural length is longer than that of the gate valve.
4. The opening and closing torque is large, the opening and closing is laborious, and the opening and closing time is long.
5. The flow resistance is large, because the medium channel in the valve body is tortuous, the flow resistance is large, and the power consumption is large.
6. Medium flow direction: When the nominal pressure PN≤6.4MPA, generally use downstream flow, and the medium flows upward from the bottom of the valve disc; when the engineering pressure PN≥10MPA, generally adopt reverse flow, and the medium flows downward from the top of the valve disc to increase the sealing Function. When in use, the shut-off valve medium can only flow in one direction. The flow direction cannot be changed.
Product Display
