LPD2-10-30
二位二通液控换向阀（常开型）
透大气
A cartridge-style, pilot-operated,
spool-type, normally open,
hydraulic directional valve
二位，二通，液控，常开，螺纹
插装换向阀
SYMBOL
压力 – 流量曲线 PRESSURE DROP VS.FLOW
In neutral position(unpiloted), the valve allows flow from port ③ to ② bidirectionally.
The spring chamber is vented to atmosphere which is internally O-ring sealed from the
cartridge flow paths. On remote pilot signal at port ① , the valve's spool shifts to block
flow from port ③ to ② bidirectionally. . Because of the vented spring chamber, the
cartridge may be fully pressurized at any port without affecting required pilot pressure
在初始位置（无液控）时，此阀允许油液从③到②双向流动，此阀弹簧腔通大气，阀内
弹簧腔与内部油路用 O 形圈密封。当远端信号到达①口时，阀芯移动，③到②双向闭合。
由于此阀弹簧腔通大气，所有油口匀可以加载全压力，而不影响所需的液控压力。
工作 OPERATION说明 DESCRIPTION
最大工作压力 (Max. Operating Pressure)：
240bar
流量 (Flow）：
See PRESSURE DROP VS.FLOW graph.
内泄漏 (Internal Leakage):
82cc/min.（毫升/分）max. at 240bar
先导口压力要求 (Pilot Pressure Required):
阀芯完全换向(To Full Spool Shift):
采用4.1bar弹簧（for 4.1bar spring）: 4.7bar
采用7.6bar弹簧（for 7.6bar spring）: 8.6barr
温度 (Temperature)：
-40ºF to +250ºF(-40ºC to +120ºC)
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
32cSt oil @ 40°C
安装扭矩 TORQUE
32-35Nm
(25.4)HEX
③ to ②
①
②
③
①
②
③
FLOW gpm(lpm)
流量
压力降
PRESSURE DROP psi(bar)
46.2
29.7
0
(7.5)
2
25(1.7)
0
(15.1)
4
(22.7)
6
(30.2)
8
50(3.4)
75(5.2)
100(6.9)
(37.9)
10
v
32cSt oil @ 40°C
安装扭矩 TORQUE
32-35Nm
(25.4)HEX
③ to ②
①
②
③
①
②
③
FLOW gpm(lpm)
流量
压力降
PRESSURE DROP psi(bar)
46.2
29.7
0
(7.5)
2
25(1.7)
0
(15.1)
4
(22.7)
6
(30.2)
8
50(3.4)
75(5.2)
100(6.9)
(
37.9)
10
v
32cSt oil @ 40°C
安装扭矩 TORQUE
32-35Nm
(25.4)HEX
③ to ②
①
②
③
①
②
③
FLOW gpm(lpm)
流量
压力降
PRESSURE DROP psi(bar)
46.2
29.7
0
(7.5)
2
25(1.7)
0
(15.1)
4
(22.7)
6
(30.2)
8
50(3.4)
75(5.2)
100(6.9)
(37.9)
10
v
克泰液压产品样本 2021 年 07 月
D-81
D
订货代号 TO ORDER
32cSt oil @ 40°C
安装扭矩 TORQUE
32-35Nm
(25.4)HEX
③ to ②
①
②
③
①
②
③
FLOW gpm(lpm)
流量
压力降
PRESSURE DROP psi(bar)
46.2
29.7
0
(7.5)
2
25(1.7)
0
(15.1)
4
(22.7)
6
(30.2)
8
50(3.4)
75(5.2)
100(6.9)
(37.9)
10
v
Unit=Millimeters
安装尺寸 INSTALLATION DIMENSIONS
321 4 5
LPD2 - 10 - 30 - * * - * * - * *
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
※
阀块详见章节 K-5
其它螺纹油口也是可选择的
Other Porting is Available
油封 Seal Kits
N
= 丁腈橡胶（标准型） Buna N(Std)
NS
= 丁腈橡胶（活塞上带密封圈）
最低弹簧压力为 7.6bar
Buna N with sealed piston
110psi(7.6bar)minumun spring
V
= 氟橡胶 V-Fluorocarbon
VS
= 氟橡胶（活塞上带密封圈）
最低弹簧压力为 7.6bar
Fluorocarbon with sealed piston
110psi(7.6bar)minumun spring
4
功能
LPD2
= 二位二通液控换向阀
Piloted Two-way Spool Directional Valve
规格 Size
10
=10 规格
弹簧调压 Bias Spring
4
=40psi(2.8bar)
6
=60psi(4.1bar)
11
=110psi(7.6bar)
17
=170psi(11.7bar)
1
2
3
克泰液压产品样本 2021 年 07 月
D-82
