HG/T21573.4-95 spherical washer
Standard Classification: Performance Standard System: Chemical Industry (HG) Shape Classification: Detailed Description: This standard specifies the structural dimensions and technical requirements of spherical gaskets for flange and manhole flange connection of pressure vessel equipment. Spherical washer type A and B. Stud surface phosphating treatment.
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Standard Classification: |
Performance criteria |
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standard system: |
Chemical (HG) |
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Shape classification: |
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Detailed Description: |
The standard specifies the structural dimensions and technical requirements of spherical gaskets for pressure vessel equipment flange and manhole flange connection. Types of spherical washers areAandBType. Stud surface phosphating treatment. |
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