Design:According to API600, BS1873 , ASME B16.34.
Test:API 598
Flanged , OS&Y, body&bonnet bolt connected.
Size range:from 1/2"~12"
Rating : class150~class2500
Material: Carbon steel , Stainless steel , Monel , incconel,Duplex steel ,etc.
Operation : handle wheel, pneumatic , electric actuator
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