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  1. JohnKTexas

    SAE Grade 8 Bolting in low temperature service

    I have 4000 bronze bodied three piece ball valves with Grade 8 bolting. The manufacturer has rated the valves to -20 F service conditions. I am using the valves at 1/3rd the rated valve pressure and want to know how I can justify a lower working temperature based on the lower working pressure I...
  2. JohnKTexas

    SAE Gr 8 bolting in Low Temperatures

    I have 4000 bronze bodied three piece ball valves with Grade 8 bolting. The manufacturer has rated the valves to -20 F service conditions. I am using the valves at 1/3rd the rated valve pressure and want to know how I can justify a lower working temperature based on the lower working pressure I...

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