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| As a core component of metal wound gaskets, these V/W-shaped steel rings are crafted from 304, 316 or special alloys to deliver exceptional elasticity and corrosion resistance. They provide structural support, compensate for flange deformation, and ensure reliable sealing in extreme conditions spanning -200°C to 1000°C for petrochemical and power generation facilities. | |||||||||
The stainless V-shaped steel ring is a core component of metal wound gaskets. It is manufactured by stamping or winding high-elasticity, corrosion-resistant spring steel strips, with a cross-section shaped as V or W. Common materials include 304, 316, 316L, 321 stainless steel, as well as special alloys such as Inconel and Hastelloy. This steel ring is alternately wound with non-metallic filling tapes (graphite, PTFE, mica, etc.) to form a complete metal wound gasket, which is used for flange connection sealing in various industrial scenarios.
The steel ring provides necessary structural strength to the gasket, preventing it from being crushed or excessively deformed under bolt preload and medium pressure. This maintains the stability of the sealing structure during long-term operation.
It helps maintain the correct position of non-metallic filling tapes during installation and use, preventing loosening or displacement that could affect sealing performance.
Under specific working conditions, the V or W cross-sectional design contributes to auxiliary sealing. Additionally, the high-elasticity material allows the ring to absorb minor displacements caused by flange surface unevenness or thermal expansion and contraction.
Parameter | Details |
Material Options | 304, 316, 316L, 321 stainless steel; Inconel, Hastelloy special alloys |
Operating Temperature Range | -200°C to +1000°C (varies by material) |
Pressure Rating | Compliant with ASME B16.20 high-pressure grades |
Cross-sectional Shapes | V-shaped, W-shaped |
Compatible Standards | ASME B16.20, DIN, GB/T |
Joint Welding Process | Argon arc welding with smooth surface grinding |
This steel ring is widely used in flange connections that require stable sealing, especially under harsh working conditions.
In petrochemical plants, it is applied to flange connections of reactors, towers, heat exchangers, valves and pumps, handling high-temperature, high-pressure oil and gas as well as corrosive chemical media. In power plants, it is used for high-temperature and high-pressure flanges in steam systems, feedwater systems, boilers and steam turbines.
Additional applications include oil and gas extraction and transportation pipelines, steelmaking and metallurgy furnaces, pharmaceutical and food processing pipelines, and shipbuilding engine and seawater treatment systems.
Steel rings are typically customized as part of complete wound gaskets, following a standardized process:
Demand Communication: Customers provide flange dimensions (DN/PN or ID/OD/thickness), working conditions (medium, temperature, pressure), material requirements and applicable standards.
Technical Assessment: Engineers evaluate working condition rationality and recommend appropriate materials, cross-sectional shapes and ring configurations.
Production and Inspection: After order confirmation, products are manufactured per approved drawings, with strict quality checks at each stage.
Shipment: Finished products are marked with material, size and standard information, packaged with rust-proof and impact-proof measures, and shipped with quality inspection reports.
Quality inspection is integrated into the entire production process:
Raw Material Inspection: Review of material certificates, dimensional checks, surface quality inspection and optional spectral composition analysis.
Process Inspection: Verification of cross-sectional shape, dimensions, roundness and welding quality during steel ring forming; checks of winding layer count and tightness.
Finished Product Inspection: Visual inspection, dimensional measurement, flatness check, hardness test and compression-rebound performance test per GB/T 12622. Leakage rate testing is available on request.
Available materials include 304, 316, 316L, 321 stainless steel, as well as Inconel and Hastelloy special alloys for extreme working conditions.
The products comply with ASME B16.20, DIN and GB/T standards, ensuring interchangeability with standard flange systems.
Yes, custom dimensions and cross-sectional shapes are available based on customer-provided drawings or specific requirements.
Core tests include dimensional inspection, hardness test and compression-rebound performance test. Leakage rate testing under simulated working conditions is available upon request.
