Manufacturer of Turbine Components
Manufactures various types of steam turbines ranging from 5MW - 50MW,including condensing, backpressure, and extraction-condensing designs
Tapered Seal Ring
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Category:
Automatic Main Steam Valve
key word:
Product Introduction
The steam turbine main steam valve body tapered seal ring is a core static sealing component installed between the valve cover and the flange connection of the valve body. Its sealing surface features a tapered inclined structure (typically with a taper angle of 15°–30°), relying on preload to achieve tight contact between the seal ring and the tapered flange surface, thereby forming a high‑pressure sealing pair. The sealing reliability directly determines the steam leakage control capability of the main steam valve, making it a critical component for preventing high‑temperature, high‑pressure steam leakage and ensuring safe unit operation.
1. Main Functions:
1. High‑pressure sealing to block steam leakage.
2. Self‑energized sealing to adapt to pressure fluctuations.
3. Thermal deformation compensation to accommodate varying operating conditions.
4. Protective isolation to safeguard connected components.
2. Common Faults:
1. Seal leakage.
2. Plastic deformation of the seal ring.
3. Seal ring rupture.
4. Seal ring aging and hardening.
5. Wear of the sealing surface.
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A production-oriented enterprise specializing in the processing, production, and research and development of steam turbine components