Introducing our groundbreaking HLPSL and HLPSV load-sensitive proportional multi-way directional spool valves. These revolutionary engineering marvels seamlessly integrate pressure, flow, and directional control into a single, harmonious unit, guaranteeing unmatched performance and reliability. Typically composed of three essential functional modules - connecting blocks, directional valves, and end plates - these valves are meticulously crafted for incorporation into high-end hydraulic systems, pivotal in top-tier engineering machinery. They precisely govern the movement direction and speed of hydraulic cylinders, motors, and other actuators, delivering unparalleled precision and control. Key highlights include a compact structure, superior energy efficiency, and the capability for stepless speed control. Furthermore, they enable multiple actuators to operate simultaneously under varying loads, providing unrivaled performance and versatility for any application.
The HLPSL valves are expertly tailored for constant displacement pump systems, ensuring steadfast and reliable operation. Conversely, the HLPSV valves are masterfully engineered for variable pump systems. While HLPSV valves may exhibit a slightly slower response time, they excel in delivering exceptional energy-saving performance, making them the ultimate choice for applications where efficiency is paramount. With their cutting-edge engineering and energy-efficient design, HLPSV valves emerge as the premier solution for advanced hydraulic control requirements.
| References |
size 2 |
size 3 |
size 5 |
| Number of Directional Valve bank |
1~12 |
1~12 |
1~10 |
| Port access type |
thread connection |
thread connection |
thread connection |
| Flow code |
3,6,10,16,25,40 |
3,6,10,16,25,40,63,80 |
16,25,40,63,80,120,160 |
| Max.flow(L/min) |
54 |
100 |
210 |
| Max.pressure(bar) |
420 |
420 |
420 |
| Control Method |
Pilot circuit pressure(bar) |
20~40 |
20~40 |
20~40 |
| Manual force(N) |
≥2.3Nm |
≥1.3Nm |
≥3Nm |
| Working Pressure(ºC) |
-40~80 |
-40~80 |
-40~80 |
| Weight |
Connection Block (kg) |
1.7 |
4 |
8 |
| Directional Valve bank (kg) |
1.9 |
4 |
8 |
| End Plate (kg) |
0.5 |
1.5 |
2.5 |
| Fix mode |
thread connection M8 |
thread connection M8 |
thread connection M10 |
Installation Instructions
(1) Essential Connection Block Codes
HLPSL: Constant Displacement Pump - The cornerstone of consistent performance.;
HLPSV: Variable Displacement Pump - Exemplifying adaptability at its peak.;
(2) Connection Block Ports P & R Specifications - Precision you can rely on::
2-G3/8; Compact yet powerful.
3-G1/2; A model of reliability and strength.;
4-G3/4; Cutting-edge connectivity.;
5, 55-G1; Exceptional flow rate.;
6-G1 1/4; Performance unrivaled.;
(3) Additional Components and Specifications - Augmenting system capabilities::
C,Standard Type - The reliable foundation.;
G,Throttle Valve (For HLPSL only) - Empowering precision control.;
H,Fixed Differential Overflow Valve for Enhanced Circulating Pressure (~14 bar, HLPSL) - Masterfully optimized flow management.;
(4) Pilot Oil Circuit Pressure Options - Fully customizable pressure control:0 - No pressure reducing valve; 1 - Pressure reducing valve (20 bar); 2 - Pressure reducing valve (40 bar); Crafted to suit your preferences.
(5) 2/2-way Magnetic Ball Valve for System Unloading - Unleashing streamlined efficiency:C - No magnetic ball valve; F - Normally open magnetic ball valve, energizes the pump when powered, releases it when unpowered; D - Normally closed magnetic ball valve, releases pump when powered, energizes when unpowered; D./F. . , Complete with a secondary pressure limiting valve (F50) with a specified pressure setting; Elevating safety to new heights.
(6) Tool Adjustable, Pressure Limiting Valve in Connection Block: Settings available at 63, 120, 210, 280, 315, 350, 400 bar; /NF: No pressure limiting valve (HLPSV only); Ensuring peak pressure control.
(7) Product Series Classification - Discover unrivaled expertise:;-2 2 Series; -3 3 Series; -5 5 Series; Each tailored to meet specific application needs with precision.
(8)Thread size options for directional spool valve ports A & B:2-G3/8; 3-G1/2; 4-G3/4; 5-G1; Plus, auxiliary block or intermediate transition block ZPL 5S(V)/H hydraulic control shut-off valve;
(9)Directional valve block inflow management options: 1, without inflow controller; 2, standard inflow controller; 4, 3-way flow controllers for both inlet and outlet, perfect for N 3/3-way valve applications; 5, reinforced inflow controller; 8, pre-selectable for versatile use;
(10) Valve core function symbols: L, M, F, H, J, B, R, O, N;
(11) Output flow code for ports A & B: Maximum available output flows include: 3, 6, 10, 16, 25, 40, 63, 80, 120, 160, 210 (L/min);
(12) Secondary pressure limitation configurations: N, no pressure limiting protection; C, simultaneously limit the pressure of actuator ports A & B; A---B---, individually limit the pressure of actuator ports A & B, unit (bar);
(13) Functionality ON/OFF and pressure outlet selections: N, without function ON/OFF and pressure outlet; X C type pressure limitation; S/S1 AB type pressure limitation; A, electrical ON/OFF on side A; B, electrical ON/OFF on side B;
(14) Operation modes: A(1,2), manual operation with long handle (1=without handle, 2=with short handle); E, electric proportional control; EA(1,2), electric proportional control and manual operation (1=without handle, 2=with short handle); D, electric switching value control; DA(1,2), electric switching value control and manual operation (1=without handle, 2=with short handle); M, manual friction positioning with long handle; H, pure hydraulic control (aligning two pilot oil ports with oil ports A and B); F, pure hydraulic control (two pilot oil ports are perpendicular and outward to oil ports A and B respectively);
(15) Ancillary block port sizes: /2 G3/8; /3 G1/2; /4 G3/4; /5 G1;
(16) End plate options: E1, standard end plate with external discharge of pilot oil, connects oil return control port T externally; E2, like E1 but with additional external discharge of pilot oil at port Y; E3, external discharge with a 2-position 3-way magnetic ball valve attached; in power supply conditions, the system pressure elevates to the safety valve level;
E4, akin to E1, featuring internal discharge of pilot oil, port T can be sealed; E5, analogous to E2, with internal discharge and sealable port T; E6, similar to E3, with internal discharge and sealable port T;
(17) Control voltage and anti-explosion type cable length options: G12-12VDC;G24-24VDC; G24Ex-3m-24VDC; G12Ex-3m-12VDC; G24MA-3m-24VDC; G123d8c99f0
Since our inception in 2009, Jiangsu KM Hydraulic Control System Co., Ltd. has illuminated the hydraulic industry with groundbreaking innovation and unparalleled excellence. As a prestigious subsidiary of the esteemed China Baoan Group (stock code: 000009), we proudly stand as a distinguished national high-tech enterprise. Our expertise lies in the meticulous research, development, manufacturing, and sales of premium hydraulic components. Our esteemed designation as a national 'specialized, refined, and innovative' small giant enterprise underscores our unwavering commitment to technological advancement and superior quality. This relentless dedication positions us as frontrunners in our field.
Our flagship product, the load-sensitive proportional valve, epitomizes the pinnacle of advanced hydraulic system control. Expertly engineered for construction machinery and heavy-duty equipment, this versatile component is vital for high-stakes applications such as emergency rescue operations, tunnel engineering, mining, and municipal service vehicles. We take immense pride in our strategic collaborations with numerous leading domestic manufacturers, playing a pivotal role in localizing core hydraulic components for high-end mechanical equipment. Guided by our core philosophy-'serving customers with technology, impressing customers with our attitude, and retaining customers with quality'-we are resolute in our commitment to delivering exceptional products, services, and solutions. Our mission is to ascend as a globally trusted supplier of premier hydraulic components, setting new benchmarks of excellence worldwide.
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