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  • Users: RandyRay
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  1. RandyRay

    New boot material in Dresser Model 83 is swelling in sour service

    Dresser has replaced its Viton boots in the Model 83 pressure regulator valve with a different elastimer material. We are experiencing severe swelling of the boot in sour crude pipeline service with failure of the valve in 7 months. Previous boots made of Viton performed well in the valve. We...

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