释义美标球阀设计标准API600与API602

译文：
美标球阀设计制造标准是API600、API602，在管路中主要用来做切断、分配和改变介质的流动方向。美标球阀的工作原理是靠旋转阀恋来使阀门畅通或闭塞。球阀开关轻便，体积小，可以做成很大口径，密封可靠，结构简单，维修方便，密封面与球面常在闭合状态，不易被介质冲蚀，在各行业得到广泛的应用。 产品型号：Q41 公称尺寸：1/2"-8" 公称压力：150Lb-600Lb10K-40K 阀体材质：WCB、CF8、CF8M、CF3、CF3M 美标球阀产品性能规范 公称压力(PN) 1.6 2.5 4.0 6.4 壳体试验压力 2.4 3.8 6.0 9.6 密封试验(液) 1.8 2.8 4.4 7.0 密封试验(气) 0.5～0.7 适用介质 C　　　　　　　P 　　　　　　R　　 水、油品、蒸气 　　硝酸类　　　　醋酸类　　　 适用温度 ≤200℃ 美标球阀主要零件材料 名称 WCB类 　CF8类 CF3类 CF8M类 CF3M类 阀体左体 A216-WCB A315-CF8 A35-CF3 A351-CF8M A351-CF3M 球体 B2-B8 A105-1025 A182-F304L A182-F304L A132-F316 A182-F316L B8以上 A216-WCB A351-CF8M A351-CF3 A351-CF8M A351-CF3M 阀杆 A182-F6a A182-F304 A182-F304L A182-F336 A182-F316L 阀座 PTFE/增强PTFE/NYLIN PTFE/Reinforced PTFE/Nyion 阀座支承圈 A105-1025 A182-F304 A182-F304L A182-F316 A182-F316L 弹簧 3yc-7/17-49H O形圈 NBR 氟橡胶 螺柱 A193-B7 A193-B8 螺母 A194-2H A194-8

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原文：
American Standard ball valve design and manufacturing standards API600, API602, mainly used in the pipe to be cut off, distribution, and change the direction of media flow. American Standard ball valve works by love to make the rotary valve by valve flow or occlusion. Valve switch light, small size, can be made into a great caliber, reliable sealing, simple structure, easy maintenance, sealingTop Entry Ball Valvessurface and the spherical often closed state, not easily to be medium erosion, in all sectors is widely used. Model: Q41 Nominal Size: 1 / 2 "-8" Nominal Pressure: 150Lb-600Lb10K-40K Body Material: WCB, CF8, CF8M, CF3, CF3M American Standard ball valve performance specifications Nominal pressure (PN) 1.6 2.5 4.0 6.4 Shell Test Pressure 2.4 3.8 6.0 9.6 Seal test (liquid) 1.8 2.8 4.4 7.0 Seal Test (gas) 0.5 ~ 0.7 For medium C P R Water, oil, steam nitric acid acetic acid ApplicableOne-Piece (1PC) Cast Steel Floating Ball Valves temperature ≤ 200 ℃ American Standard Valve Main Part Material Name WCB CF8 class class class CF3M class CF8M CF3 class Left valve body A216-WCB A315-CF8 A35-CF3 A351-CF8M A351-CF3M Ball B2-B8 A105-1025 A182-F304L A182-F304L A132-F316 A182-F316L B8 above A216-WCBForged Steel Floating Ball Valves A351-CF8M A351-CF3 A351-CF8M A351-CF3M Stem A182-F6a A182-F304 A182-F304L A182-F336 A182-F316L Seat PTFE / enhanced PTFE / NYLIN PTFE / Reinforced PTFE / Nyion Valve seat support ring A105-1025 A182-F304 A182-F304L A182-F316 A182-F316L Spring 3yc-7/17-49H Viton O-ring NBR Stud A193-B7 A193-B8 Nut A194-2H A194-8