... , ANSI5. Test standard: GB/T4213-2008, API598Product introductionHB2510 pneumatic piston O type shut-off ball valve is improved on the basis ... ,30k,40kMaterial of parts Body WCB,CF8,CF8M,316L,Hastalloy C PlugWCB,CF8,CF8MStem310S,304,316LPackingPTFE, graphite Sealing ring CGM,316L ... ,PTFEFluid temperatureNormal temp.-20 ~ +250°cHigh temp. 1-30 ~ +350°cHigh temp. 2-40 ~ +400°cHigh temp. 3-60 ...