控制阀基础知识大全.pdf

Optional tagline or descriptor 控制阀基础知识 德莱赛流体方案部北京办事处 控制阀的基本知识 IEC Definition: A power operated device which changes the fluid flow rate in a process control system. It consists of a valve connected to an actuator that is capable of changing the position of the closure member in the valve in response to a signal from the system 与控制阀常用标准相关的组织 美国国家标准组织 (ANSI) 美国机械工程师学会 (ASME) 美国测试与材料学会 (ASTM) 美国石油组织 (API) 国际测量与控制学会 (ISA) 国际标准化组织 (ISO) 国际电工委员会 (IEC) 国际腐蚀工程师协会 (NACE) 流体控制组织 (FCI) 制造商标准化学会 (MSS) • 调节阀术语的定义 IEC 534-1 ISA-75.05.01 (a) ASME B16.5 Pipe Flanges Flanged Fittings (b) ISA S75.03, S75.04 Face to Face Dimensions of Control Valves (c) ASME B16.34 Valves - Flanged, Threaded Welding End (d) ASME/ANSI B16.37 Hydrostatic Test (e) ASME Section VIII Construction of Pressure Vessels (f) NACE MR01-75 Sulfide Stress Cracking Resistant Material (g) ASTM Specifications Material Specifications (h) ANSI/FCI 70-2 Control Valve Seat Leakage (i) IEC 60534-2-1 Flow Capacity - Sizing Equations (j) IEC 60534-8-3 Control Valve Aerodynamic Noise (k) IEC 534-8-4 Control Valve Hydrodynamic Noise Industry Standards (a) ASME B16.5 Pipe Flanges Flanged Fittings » Steel Alloys; Nickel Alloys » Nominal Pipe Sizes from 1/2” to 24” » Pressure Classes From 150 to 2500 » Pressures to 6000 psig » Temperatures from -20o o F to 1500 F » Flanges, ButtWeld End Connection, Threaded Fittings, Dimensions, Tolerances, Marking, Testing, Finishes