Metal Seal Application Case: Solid Oxide Fuel Cell (SOFC) Industry
Customer Name: SOFCMAN Energy 
Industry: Energy Equipment
Products: Solid Oxide Fuel Cell

•  Requirement Description: Sealing on SOFC equipment air distribution flange
•  Leakage rate requirement: lower than 1E-8Pa*m3/s
•  Operating pressure: 100kPa
•  Pressure direction: Internal 
•  Operating temperature: 650-750­°C
•  Flange material: 310S
•  Flange roughness: Ra = 0.4\
Sonkit Solution: Metal O-Ring, Alloy 718 + Silver plating 20-30um, OD24mm

Test Result:
Sofcman deployed 200 metal O-rings produced by Sonkit Industry. After testing, the material and size are qualified, and the air distribution flange sealing requirements are met in the installation experiment.

In 2020, 2021 and 2022, Soforen Energy  repurchased the metal O-Rings from Sonkit Industry.

Customer Review:
metal ring seals, specifically metal O-Rings provided by Sonkit Industry are with high-quality. And  it can be delivered on time within the specified delivery period. All of the Staff at Sonkit Industry exhibit excellent professionalism and an enthusiasm to provide great customer service

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