| Customization: | Available |
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| Certification: | ISO |
| Color: | Customized |
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The main steam valve seat has high load-bearing capacity and sealing performance, which is the key to ensuring the normal operation of the main steam valve. The pressure sealing steam liner of the valve seat can limit axial movement and form a seal to eliminate steam leakage from the shaft. When opening and closing the main steam valve, use a steam relief valve (unloading valve) to release the steam pressure at the pressure seal, in order to reduce the wear and resistance of the spherical base.
The valve seat of the reheat main steam valve adopts an equally thick ball cover with a central rod. During assembly, the center rod passes through the rocker arm hole and is locked in place with a nut. The contact surface between the rocker arm, valve disc, and nut is spherical, and there is a gap to allow rotation. The sealing surface of the valve disc is spherical, and the valve seat is a circular ring surface. When the valve disc is closed and in contact with the valve seat, the movable connection between the valve disc and the rocker arm allows the valve disc to be correctly positioned to ensure a complete fit of the sealing surface.
The valve seat (spherical base) of the main steam valve of the steam turbine has the characteristics of simple structure, good sealing performance, and high load-bearing capacity, providing strong support for ensuring the normal operation of the main steam valve.
| Product size | Customizable to drawings or samples |
| Optional Materials | 15CrMoA |
| 20Cr1Mo1VNbTiB | |
| 25Cr2Mo1VA | |
| 25Cr2MoVA | |
| 35CrMoVA | |
| 40CrNiMoA | |
| 45Cr1MoV | |
| 2Cr11Mo1NiWVNbN | |
| 2Cr12NiMo1W1V | |
| 1Cr11Co3W3NiMoVNbNB | |
| 1Cr18Ni9Ti | |
| Heat treatment | According to the drawing requirements |
| Accuracy | 0.02mm |
| Special processes | According to the drawing requirements |
| Quality inspection | Non destructive testing |
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