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 - Your blueprint for precision and success.
HLPSL: Constant Displacement Pump - A cornerstone for consistent and unwavering performance. Opt for stability and reliability.;
HLPSV: Variable Displacement Pump - Embodying adaptability at its pinnacle. Designed for versatility and efficiency.;
(2) Connection Block Ports P & R Specifications - The epitome of precision you can trust: Crafted for excellence in every detail.:
2-G3/8; Compact in design, yet highly efficient. A masterpiece of space-saving innovation.
3-G1/2; Renowned for reliability and robustness. Built to withstand the toughest demands.;
4-G3/4; Advanced connectivity for superior performance. Engineered for peak productivity.;
5, 55-G1; Exceptional flow rate ensuring optimal fluid dynamics. Optimize your system's potential.;
6-G1 1/4; Unmatched in performance and reliability. Crafted for assured dependability.;
(3) Additional Components and Specifications - Elevating system capabilities to new heights: Experience innovation that empowers.:
C,Standard Type - A dependable baseline for all applications. Your trusted solution for universal needs.;
G,Throttle Valve (For HLPSL only) - Offers unparalleled precision control. Master the art of fluid regulation.;
H,Fixed Differential Overflow Valve for Enhanced Circulating Pressure (~14 bar, HLPSL) - Masterfully optimized flow management. Elevate your hydraulic control with precision.;
(4) Pilot Oil Circuit Pressure Options - Customizable pressure control tailored to your specific needs: Empower your operations with flexibility.0 - No pressure reducing valve; 1 - Pressure reducing valve (20 bar); 2 - Pressure reducing valve (40 bar); Tailored for your precise requirements. Achieve the perfect balance for your system.
(5) 2/2-way Magnetic Ball Valve for System Unloading - Ensuring streamlined efficiency and effectiveness: Revolutionize your system's operational efficiency.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. Infallible protection for your peace of mind.
(6) Tool Adjustable, Pressure Limiting Valve in Connection Block: Effortlessly select from pressure settings available at 63, 120, 210, 280, 315, 350, and 400 bar for precise customization. Opt for /NF to exclude the pressure limiting valve (HLPSV only). Ensure unmatched pressure control and safety for your applications.
(7) Product Series Classification - A hallmark of excellence:;-2 2 Series; -3 3 Series; -5 5 Series; These are ingeniously tailored to meet the diverse needs of every application, delivering precision and reliability.
(8)Thread size of directional spool valve ports A & B:2-G3/8; 3-G1/2; 4-G3/4; 5-G1; Whether it's an ancillary block or an intermediate transition block ZPL 5S(V)/H hydraulic control shut-off valve, these sizes offer the flexibility you need.
(9)Directional valve block inflow controller options: Choose from 1, without inflow controller, to 8, pre-selectable; including a 3-way flow controller for both inlet and outlet, ideal for N 3/3-way valve, ensuring precise control and performance.
(10) Valve core function symbols: L, M, F, H, J, B, R, O, N; each symbol represents a unique functionality crafted for your specific operational needs.
(11) Output flow code for ports A & B: Unlock the potential with available maximum output flows of 3, 6, 10, 16, 25, 40, 63, 80, 120, 160, and 210 L/min, ensuring optimal performance across varied applications.
(12) Secondary pressure limitation options: Select N for no pressure limiting protection or opt for C to simultaneously limit the pressure of actuator ports A & B. Alternatively, choose A---B--- to limit them separately, all measured in the unit of bar for precision.
(13) Function ON/OFF and pressure outlet options: Experience flexibility with options like 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, tailored for diverse operational demands.
(14) Operation modes: A(1,2), manual operation with versatile handle options; E, electric proportional control; EA(1,2), combining electric proportional control with manual operation; D, electric switching value control; DA(1,2), a blend of electric switching value control and manual operation; M, manual friction positioning with long handle; H, pure hydraulic control (two pilot oil ports align with oil ports A and B); F, pure hydraulic control (two pilot oil ports are perpendicular to oil ports A and B and outward respectively), each mode designed for different operational needs.
(15) Ancillary block port sizes: Options like /2 G3/8; /3 G1/2; /4 G3/4; /5 G1 accommodate specific size requirements for ancillary applications.
(16) End plate options: E1, standard end plate, external discharge of pilot oil, connecting oil return control port T externally; E2, similar to E1, external discharge of pilot oil, port Y is additionally attached; E3, external discharge of pilot oil, a 2-position 3-way magnetic ball valve is mounted; in power supply scenarios, the system pressure rises to the safety valve pressure, providing robust solutions for various setups.
E4, similar to E1, internal discharge of pilot oil, port T can be sealed; E5, similar to E2, internal discharge of pilot oil, port T can be sealed; E6, similar to E3, internal discharge of pilot oil, port T can be sealed, each offering a tailored fit for specific applications.
(17) Control voltage and the length of anti-explosion type cable options: G12-12VDC; perfectly suited for environments where safety and reliability are paramount.G24-Power Specifications: 24VDC; G24Ex-3m-24VDC; G12Ex-3m-12VDC; G24MA-3m-24VDC; G12bb621436
Since our inception in 2009, Jiangsu KM Hydraulic Control System Co., Ltd. has brilliantly illuminated the hydraulic industry through 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, is 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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