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  • Users: LarryChang
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  1. LarryChang

    Forged Alloy 825 Valves

    btw, A494 N08826 is not a good substitute.
  2. LarryChang

    Forged Alloy 825 Valves

    I checked the chemical composition and machanical properties of B564 N08825 and A494 N08826. Please note that it is not A494 N08825 but A494 N08826(CU5MCuC). There is a different for their tensile strength(586MP/520MP). It is recommended that in the hydrogen industry in view of the hydrogen...
  3. LarryChang

    Need Help! Top Entry Cryogenic Butterfly Valve(-170 degree centigrade)

    Well, Pan. Although we are a valve manufacturer, we can't find the relevant design standard to follow. And I searched other manufacturer's products catalogue and consulted some engineers, but can't find a solution. And our clients insist on the "top entry" type and the products should be...
  4. LarryChang

    Need Help! Top Entry Cryogenic Butterfly Valve(-170 degree centigrade)

    Would anyone please kindly give me some advice? It's urgent!
  5. LarryChang

    Need Help! Top Entry Cryogenic Butterfly Valve(-170 degree centigrade)

    One of our clients ask for "Top Entry Cryogenic Butterfly Vale" 1)DN150, Class 900LB, Top Entry, BW ends SCH120S, Gear Operated. 2)For Cryogenic services at -170°C, Main Material: CF3M But our engineer insist that it is impossible to make the "Top Entry" type cause the pressure is too high. And...
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