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 - A cornerstone for consistent and unwavering performance, ensuring your operations never falter.;
HLPSV: Variable Displacement Pump - Embodying adaptability at its pinnacle, seamlessly adjusting to meet dynamic operational demands.;
(2) Connection Block Ports P & R Specifications - The epitome of precision you can trust, crafted to exacting standards::
2-G3/8; Compact in design, yet highly efficient, maximizing performance in minimal space.
3-G1/2; Renowned for reliability and robustness, a testament to enduring quality.;
4-G3/4; Advanced connectivity for superior performance, pushing boundaries in fluid technology.;
5, 55-G1; Exceptional flow rate ensuring optimal fluid dynamics, delivering peak operational efficiency.;
6-G1 1/4; Unmatched in performance and reliability, a benchmark in hydraulic engineering.;
(3) Additional Components and Specifications - Elevating system capabilities to new heights, enhancing every facet of your operations::
C,Standard Type - A dependable baseline for all applications, ensuring robust performance across diverse scenarios.;
G,Throttle Valve (For HLPSL only) - Offers unparalleled precision control, fine-tuning flow for optimal outcomes.;
H,Fixed Differential Overflow Valve for Enhanced Circulating Pressure (~14 bar, HLPSL) - Masterfully optimized flow management, ensuring flawless circulation.;
(4) Pilot Oil Circuit Pressure Options - Customizable pressure control tailored to your specific needs, offering flexibility like never before:0 - No pressure reducing valve; 1 - Pressure reducing valve (20 bar); 2 - Pressure reducing valve (40 bar); Tailored for your precise requirements, meeting every challenge head-on.
(5) 2/2-way Magnetic Ball Valve for System Unloading - Ensuring streamlined efficiency and effectiveness, revolutionizing operational control:C - No magnetic ball valve; F - Normally open magnetic ball valve, pressurizes pump when powered, unloads pump when unpowered; D - Normally closed magnetic ball valve, unloads pump when powered, pressurizes when unpowered; D./F. . , With pressure limiting valve for secondary pressure (F50) with specified pressure value; Pioneering advanced safety measures, safeguarding your system with cutting-edge technology.
(6) Tool Adjustable, Pressure Limiting Valve in Connection Block: Harness the power of precision with settings available at 63, 120, 210, 280, 315, 350, and 400 bar. Choose /NF for No pressure limiting valve (HLPSV only). This guarantees optimal pressure control and unparalleled safety.
(7) Product Series Classification - Identifying excellence:;-2 2 Series; -3 3 Series; -5 5 Series; Each series is meticulously tailored to meet every application need with precision and efficiency.
(8)Thread size of directional spool valve ports A & B:2-G3/8; 3-G1/2; 4-G3/4; 5-G1; Featuring an A, ancillary block or an intermediate transition block ZPL 5S(V)/H hydraulic control shut-off valve for seamless integration.
(9)Directional valve block inflow controller options: Choose from 1, without inflow controller; 2, the reliable standard inflow controller; 4, optimized 3-way flow controllers for both inlet and outlet, perfect for N 3/3-way valve needs; 5, a strengthened inflow controller; or 8, pre-selectable for advanced applications.
(10) Valve core function symbols: Unlock versatility with symbols L, M, F, H, J, B, R, O, N; each crafted for distinct functionality.
(11) Output flow code for ports A & B: Embrace variety with available maximum output flows: 3, 6, 10, 16, 25, 40, 63, 80, 120, 160, 210 (L/min), ensuring you have the right flow for every scenario.
(12) Secondary pressure limitation options: Opt for N, for no pressure limiting protection; C, to limit the pressure of actuator ports A & B simultaneously; or A---B---, to limit the pressure of actuator ports A & B separately, all measured in precision unit (bar).
(13) Function ON/OFF and pressure outlet options: Choose N, without function ON/OFF and pressure outlet for simplicity; X for C type pressure limitation; S/S1 for AB type pressure limitation; A, for electrical ON/OFF on side A; or B, for electrical ON/OFF on side B for enhanced control.
(14) Operation modes: Versatility at its best with modes like A(1,2) for manual operation with long handle (1=without handle, 2=with short handle); E, for electric proportional control; EA(1,2), for electric proportional control and manual operation (1=without handle, 2=with short handle); D, for electric switching value control; DA(1,2), for electric switching value control and manual operation (1=without handle, 2=with short handle); M, for manual friction positioning with long handle; H, for pure hydraulic control (two pilot oil ports align with oil ports A and B); and F, for pure hydraulic control (two pilot oil ports are perpendicular to oil ports A and B and outward respectively).
(15) Ancillary block port sizes: Choose from /2 G3/8; /3 G1/2; /4 G3/4; /5 G1; for a perfect fit every time.
(16) End plate options: Select E1, for standard end plate, featuring external discharge of pilot oil, connecting oil return control port T externally; E2, similar to E1, adds port Y; E3, mounts a 2-position 3-way magnetic ball valve, elevating system pressure to the safety valve pressure in power supply scenarios.
Choose E4, similar to E1 with internal discharge of pilot oil and the option to seal port T; E5, similar to E2 with internal discharge and sealable port T; E6, similar to E3, internal discharge with sealable port T.
(17) Control voltage and the length of anti-explosion type cable options: Precision meets safety with G12-12VDC, ensuring reliable performance in every application.G24-24VDC; G24Ex-3m-24VDC; G12Ex-3m-12VDC; G24MA-3m-24VDC; G12bb621436
Since our inception in 2009, Jiangsu KM Hydraulic Control System Co., Ltd. has set the hydraulic industry aglow 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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