FISHER EZL功能特点: 低压差应用—可在压力差低至 2.9 psid / 0.2 bar d 的情况下执行精确的控制 气密切断—锐利的金属塞和软阀座提供气密切断,可用于终端系统等需要正压关闭的应用。 完全无大气排放—利用先导式控制系统将所有气体排放至下游系统,因此不会将任何有害废气排放至空气中。 简单直通式维护—**部进入式设计使得维护更加简单。 *从管线上卸下阀体即可检查、清洁及更换阀内件。 精确压力控制—无论负载或入口压力如何变化,都能够提供稳定、精确的下游压力控制。 行程指示器—简化了维护过程的检测和系统故障排查 完整压力等级—290 psig/20 bar 相等的入口和出口压力等级,更易选择,*特殊的启动或关闭程序。 一体化切断组态—EZLOSX 型在出现过压或失压时会中断供气。 FISHER EZL规格参数: 可选配置 EZL 型:控制范围为 7 in w.c. 至 300 psig / 17 mbar 至 20.7 bar EZLOSX 型:EZL 型带一体化 OS2 式快速关断设备 阀体尺寸和端面连接方式 阀体尺寸:NPS 2、3 或 4 / DN 50、80 或 100 阀门主体材质:WCC 或铸铁 端部连接形式:NPT、SWE、BWE、CL150 RF、CL250 RF、CL300 RF、CL600 RF 或 CL125 FF 允许的较大压力 入口压力:290 psig / 20.0 bar 出口(外壳)压力:290 psig / 20.0 bar 紧急外壳压力:290 psig / 20.0 bar 运行差压:290 psid / 20.0 bar d 出口压力范围 0.25 至 350 psig / 0.02 至 24.1 bar 温度适用范围 -20° 至 180°F / -29° 至 82°C 其他技术数据 Fisher EZL Series regulators are accurate pilot-operated, pressure balanced, soft-seated regulators. They are designed for use in natural gas distribution applications such as district regulating stations and commercial/industrial meter sets. They provide low differential, smooth, reliable operation, tight shutoff and long life. Features Low Differential Applications—Can accurately control at pressure differentials as low as 2.9 psid / 0,2 bar d Bubble-Tight Shutoff—A knife-edged metal plug and soft seat provide bubble tight shutoff for use in applications where positive shutoff is required such as dead-end systems. Absolutely No Atmospheric Bleed—Eliminates nuisance and wasteful bleed gas to atmosphere by utilizing a pilot-operated control system, which bleeds ** of the gas to the downstream system. Easy In-Line Maintenance—Top entry design enables easier maintenance. Trim parts can be inspected, cleaned and replaced without removing the body from pipeline. Precise Pressure Control—Provides stable and accurate downstream pressure control regardless of load changes or inlet pressure variations. Travel Indicator—Simplifies in-service inspection and system troubleshooting Full Pressure Rating—The equal inlet and outlet pressure rating of 290 psig / 20 bar, which allows easier selection and requires no special startup or shutdown procedures. Integral Slam Shut Configurations—Type EZLOSX interrupts gas service during an overpressure or underpressure condition. Specifications Available Configurations Type EZL: Control range of 7 inches w.c. to 300 psig / 17 mbar to 20,7 bar Type EZLOSX: Type EZL with an integrated Type OS2 slam-shut device Body Sizes and End Connection Styles Body Sizes: NPS 2, 3, or 4 / DN 50, 80, or 100 Main Valve Body Material: WCC or Cast iron End Connection Styles: NPT, SWE, BWE, CL150 RF, CL250 RF, CL300 RF, CL600 RF, or CL125 FF Maximum Allowable Pressures Inlet Pressure: 290 psig / 20,0 bar Outlet (Casing) Pressure: 290 psig / 20,0 bar Emergency Casing Pressure: 290 psig / 20,0 bar Operating Differential Pressure: 290 psid / 20,0 bar d Outlet Pressure Range 0.25 to 350 psig / 0,02 to 24,1 bar Temperature Capabilities -20° to 180°F / -29° to 82°C Fisher China Guangzhou Honest Gas Equipment Co., LTD. Tel:+86-020-32201622 Mobile phone|weixin:15876552411 E-mail:363495724@