Manufacturer of Turbine Components

Manufactures various types of steam turbines ranging from 5MW - 50MW,including condensing, backpressure, and extraction-condensing designs


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Valve Disc

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Category:

Automatic Main Steam Valve

key word:

Product Introduction

The steam turbine main steam valve disc is the core opening and closing component of the main steam valve. Together with the valve seat, it forms a sealing pair to directly control the flow or shut-off of steam between the main steam pipeline and the turbine. Its sealing performance, structural strength, and operational reliability determine the isolation effectiveness of the main steam valve and the response speed during emergency shutdowns, making it a critical part for ensuring safe unit operation.

 

1. Main Functions:

1. Sealing and isolating, cutting off the steam passage.

2. Reducing throttling losses and improving flow efficiency.

3. Withstanding steam loads and maintaining structural stability.

4. Buffering thermal shock.

 

2. Common Faults:

1. Erosion and wear of the sealing surface, leading to steam leakage (high-frequency fault).

2. Valve disc sticking.

3. Valve disc deformation, fouling of the valve disc, and erosion of the sealing surface.

4. Valve disc fracture (severe fault).

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Sophia Sun

E-mail:sophia@qdczpower.com

WhatsApp:+86-16653227817

Phone/Wechat:+86-16653227817





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