PDF《LPC-10》

D-37 LPC-10 液控单向阀 A cartridge-style pilot-to-open poppet-type check valve 锥阀式液控单向阀 SYMBOL The valve allows flow from ② to ③ , while normally blocking flow from ③ to ② .

Flow will be allowed from ③ to ② when sufficient pressure is applied at ①. The cartridge has a 3.5:1 pilot ratio, meaning that at least

28 percent of the load pressure held at ③ is required at ① to open the valve. 当在②口的压力超过开启压力,②到③开启:在反方向,③到②关闭;

当在①口所需的液压力达到③口负载的 28% 时, 阀芯打开, ③和②通, 液控比为 3.5:1. 压力 C 流量曲线 PRESSURE DROP VS.FLOW 工作 OPERATION 说明 DESCRIPTION 工作压力(Operating Pressure): 250bar 流量(Flow): See PRESSURE DROP VS.FLOW graph. 内泄漏(Internal Leakage):

2 drops/min(滴/分). max. at 250bar 开启压力(Crack Pressures): 1.7=1.7bar 3.4=3.4bar 6.2=6.2bar 控制比(Pilot Ratio): 3.5:1 温度(Temperature): -40°F to +250°F(-40°C to +120°C) 过滤(Filtration): See page (参见) N-1 油液(Fluids): Mineral-based fluids with viscosities of 7.4 to

420 cSt.(矿物油粘度) 插孔(Cavity): 10-3,See page M-2 阀块材料(Body Material): 6061-T6 aluminum alloy rated to 207bar, Steel & Ductile iron rated to 350bar 6061-T6铝,允许使用最大压力207bar 钢和球铁允许使用最大压力350bar 技术参数 SPECIFICATIONS to ? ? to ? ? 32cSt oil @ 40°C (6.9bar) (3.4bar) (1.7bar) D-38 订货代号 TO ORDER 规格 Size 10=10 规格

2 阀块油口 Body Porting 空白 Blank= 不带阀块 None 6T=SAE6 8T=SAE8 2G=G 1/4 3G=G 3/8

5 ???? 32-35Nm

10 46.8 TORQUE (25.4)HEX Unit=Millimeters 安装尺寸 INSTALLATION DIMENSIONS 阀块详见章节 K-5 其它螺纹油口也是可选择的 Other Porting is Available

1 3

4 2

5 LPC C

10 开启压力 Cracking Pressure 1.7=1.7bar 3.4=3.4bar 6.2=6.2bar

4 功能 LPC= 液控单向阀 Pilot to Open Check Valve

1 油封 Seal Kits N= 丁晴橡胶 ( 标准型 ) Buna N(Std) NS= 丁晴橡胶 ( 活塞上带密封圈 ) 最低开启压力为 6.2bar Buna N with sealed piston 6.2bar(90psi)minimun spring V= 氟橡胶 V-Fluorocarbon VS= 氟橡胶 ( 活塞上带密封圈 ) 最低开启压力为 6.2bar VS-Fluorocarbon with sealed pistion 6.2bar(90psi)minimun spring 3