中秋作本名小秦王，入腔即阳关曲，暮云收尽溢清寒。 —— 苏轼《阳关曲》 R SL20GA1-42/力士乐先导式单向阀 Bosch Rexroth Hydraulic Valves 博世力士乐液压阀 On/off valves - Isolator valves 开/关阀 - 隔离阀 Check valves, pilot operated 先导式单向阀 SL 20 产品描述： SL 型阀是一种采用座式结构的液压开启式单向阀。 它用于无泄漏截止一个用液设备管接头。 通过提前打开可以给高压液体缓缓卸压。由此可以避免出现可能的切换冲击。 - 规格 20 - 组件系列 4X - zui大工作压力 315 bar - zui大流量 350 l/min - 用于底板安装 - 孔图按 ISO 5781 - 用于螺纹连接 - 带或不带预开口 - 不同的开启压力 博世力士乐 液压阀 隔离阀 先导式单向阀 Bosch Rexroth 阀门 截止阀 R SL20GA1-42/ R SL20GA1-4X/力士乐单向阀 R SL20GA1-42/ R SL20GA1-4X/力士乐单向阀 供应商信息：武汉亿嘉隆机电设备有限公司 Attn：袁荣 Tel： Fax： QQ： 去时梅萼初凝粉。 —— 欧阳修《玉楼春·去时梅萼初凝粉》 R SL20GA1-42/力士乐先导式单向阀 博世力士乐 单向阀 开关阀 隔离阀 Bosch Rexroth 先导式单向阀 液压阀 截止阀 阀门 Bosch Rexroth Hydraulic Valves 博世力士乐液压阀 On/off valves - Isolator valves 开/关阀 - 隔离阀 Check valve, hydraulically pilot operated 单向阀，液压先导式 Types SV and SL - Nominal sizes 10 to 32 - Component series 4X - Maximum operating pressure 315 bar - Maximum flow 550 l/min   Features - For subplate mounting - Connection location to ISO 5781 - Subplates to data sheet RE 45062 (separate order) - For threaded connections - With internal or external pilot oil drain, optional - With or without decompression feature, optional - Version with decompression feature for dampened decompression (minimising possible pressure shocks) - 4 opening pressures, optiona   Ordering details "S*****-4X/**" "S"--Check valves "*"--V = Internal pilot oil drain；L = External pilot oil drain "*"--Nominal sizes 10 to 32 "*"--P = For subplate mounting；G = For threaded connections "*"--A = With decompression feature； B = Without decompression feature "*"--Opening pressure：See Δp-qV-characteristic curves A to B, Pages 5 and 6 "4X"--Component series 40 to 49(40 to 49: unchanged installation and connection dimensions) "*"--Seal material：No code = NBR seals；V = FKM seals Attention! The compatibility of the seals and pressure fluid used has to be taken into account! "*"--Further details in clear text   Preferred types R SL10GA1-4X/ R SL10GB1-4X/ R SL10PA1-4X/ R SL10PB1-4X/ R SL15GA1-4X/ R SL20PA1-4X/ R SL20PB1-4X/ R SL25GA1-4X/ R SL30GA1-4X/ R SL30PA1-4X/   R SV10GA1-4X/ R SV10GB1-4X/ R SV10PA1-4X/ R SV10PB1-4X/ R SV15GA1-4X/ R SV20GA1-4X/ R SV20PA1-4X/ R SV25GA1-4X/ R SV30GA1-4X/ R SV30PA1-4X/ …… 浪花有意千里雪，桃花无言一队春。 —— 李煜《渔父·浪花有意千里雪》