Property specification Body:WC9/WCB,CF8/CF8M/CF3/CF3M,QT400-18/60-40-18,HT200/NO.30 Sealing：(-20 ~ + 85℃), EPDM (-40 ~ +125℃), NBR (-20~ +82℃), SI (-70~ +150℃) VITON (-23 ~ +150℃), CR (0~ +80℃), IIR (-40~ +100℃), PTFE(+10~ +150℃) Adoption standard Design standard: API609-89 Structure length: API609-89 Flange connection: ANSI B16.1-89 ANSI B16.5-92 Applicable medium Water, sea water, air, steam, gas, foodstuff, pharmacy, and oil, acid, alkali, salt corrosive medium and so on B16.10 Flange dimensions to ANSI B16.5 Butt-welding end dimensions to ANSI B16.25 Valve tested to API 6D or API598