Introducing our groundbreaking HLPSL and HLPSV load-sensitive proportional multi-way directional spool valves, a testament to engineering innovation and precision! These revolutionary creations seamlessly blend pressure, flow, and directional control in one harmonious unit, ensuring unparalleled performance and reliability. These valves consist of three essential functional modules - connecting blocks, directional valves, and end plates, meticulously crafted for incorporation into high-end hydraulic systems, pivotal for top-tier engineering machinery. They precisely control the movement direction and speed of hydraulic cylinders, motors, and actuators, delivering unparalleled precision and control. The key highlights include a compact structure, superior energy efficiency, and the capability for stepless speed control. Moreover, these valves empower multiple actuators to operate in unison under varying loads, showcasing unrivaled performance and versatility for any application.
The HLPSL valves are expertly crafted for constant displacement pump systems, ensuring steadfast and reliable operation. On the other hand, the HLPSV valves are masterfully designed for variable pump systems. While HLPSV valves may have 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 reliability and stability in every operation.;
HLPSV: Variable Displacement Pump - Embodying adaptability at its pinnacle, crafted for dynamic and responsive system integration.;
(2) Connection Block Ports P & R Specifications - The epitome of precision you can trust, designed for flawless functionality in demanding environments::
2-G3/8; Compact in design, yet highly efficient, providing optimal performance in space-constrained applications.
3-G1/2; Renowned for reliability and robustness, ensuring resilient and sustained operations.;
4-G3/4; Advanced connectivity for superior performance, enabling enhanced system capability and throughput.;
5, 55-G1; Exceptional flow rate ensuring optimal fluid dynamics, designed to elevate your system's efficiency.;
6-G1 1/4; Unmatched in performance and reliability, setting new standards in hydraulic connectivity.;
(3) Additional Components and Specifications - Elevating system capabilities to new heights, offering unparalleled flexibility and customization::
C,Standard Type - A dependable baseline for all applications, providing a solid foundation for versatile solutions.;
G,Throttle Valve (For HLPSL only) - Offers unparalleled precision control, tailored for meticulous flow regulation.;
H,Fixed Differential Overflow Valve for Enhanced Circulating Pressure (~14 bar, HLPSL) - Masterfully optimized flow management to maintain equilibrium.;
(4) Pilot Oil Circuit Pressure Options - Customizable pressure control tailored to your specific needs, ensuring precision in system tuning:0 - No pressure reducing valve; 1 - Pressure reducing valve (20 bar); 2 - Pressure reducing valve (40 bar); Tailored for your precise requirements, engineered for reliability.
(5) 2/2-way Magnetic Ball Valve for System Unloading - Ensuring streamlined efficiency and effectiveness, revolutionizing operational management: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;./F. . , With pressure limiting valve for secondary pressure (F50) with specified pressure value; Pioneering advanced safety measures, securing your system with cutting-edge technology.
(6) Tool Adjustable, Pressure Limiting Valve in Connection Block: Offering adjustable settings at 63, 120, 210, 280, 315, 350, and 400 bar, this valve ensures cutting-edge pressure management and safety. /NF: No pressure limiting valve (HLPSV only), guaranteeing exceptional pressure control and safety.
(7) Product Series Classification - Unveiling the pinnacle of excellence:;-2 2 Series; -3 3 Series; -5 5 Series; Custom-engineered to suit every unique application.
(8)Thread size of directional spool valve ports A & B:2-G3/8; 3-G1/2; 4-G3/4; 5-G1; A, sophisticated ancillary block or seamless intermediate transition block ZPL 5S(V)/H hydraulic control shut-off valve;
(9)Directional valve block inflow controller options: 1, without inflow controller; 2, standard inflow controller; 4, 3-way flow controllers for both inlet and outlet (perfectly suited for N 3/3-way valve); 5, reinforced inflow controller; 8, customizable pre-selectable.
(10) Valve core function symbols: L, M, F, H, J, B, R, O, N; each symbol represents a unique capability.
(11) Output flow code for ports A & B: With an array of maximum output flows: 3, 6, 10, 16, 25, 40, 63, 80, 120, 160, 210 (L/min); designed for diverse operational needs.
(12) Secondary pressure limitation options: N, without pressure limiting protection; C, ensure simultaneous pressure limitation for actuator ports A & B; A---B---, precisely limit pressure for actuator ports A & B individually, measured in units of bar.
(13) Function ON/OFF and pressure outlet options: N, forgoing function ON/OFF and pressure outlet; X C type pressure limitation; S/S1 AB type pressure limitation; A, electrified ON/OFF on side A; B, electrified ON/OFF on side B.
(14) Operation modes: A(1,2), manual operation with an extended handle (1=absent, 2=short); E, electric proportional control; EA(1,2), electric plus manual operation (1=absent, 2=short); D, electric switch value control; DA(1,2), electric plus manual switch control (1=absent, 2=short); M, manual friction positioning with extended handle; H, exclusive hydraulic control (two pilot oil ports match oil ports A and B); F, exclusive hydraulic control (two pilot oil ports are perpendicular to oil ports A and B, extending outward).
(15) Ancillary block port sizes: Compatible with /2 G3/8; /3 G1/2; /4 G3/4; /5 G1; delivering precise connectivity.
(16) End plate options: E1, standard end plate, with external pilot oil discharge, facilitating external oil return control at port T; E2, akin to E1, with added port Y; E3, incorporating a 2-position 3-way magnetic ball valve for scenarios where system pressure aligns with safety valve thresholds.
E4, akin to E1, with internal pilot oil discharge and sealable port T; E5, akin to E2, with internal pilot oil discharge and sealable port T; E6, akin to E3, with an internal pilot oil discharge and sealable port T.
(17) Control voltage and anti-explosion cable length options available: G12-12VDC;G24-24VDC power configurations include the versatile G24Ex-3m-24VDC, the efficient G12Ex-3m-12VDC, and the high-performance G24MA-3m-24VDC, all meticulously designed to meet your hydraulic needs.12bb621436
Since our inception in 2009, Jiangsu KM Hydraulic Control System Co., Ltd. has been a beacon of innovation and excellence in the hydraulic industry. As a prestigious subsidiary of the esteemed China Baoan Group (stock code: 000009), we stand as a distinguished national high-tech enterprise. Our expertise shines in the meticulous research, development, manufacturing, and sales of premium hydraulic components. Recognized as a national 'specialized, refined, and innovative' small giant enterprise, we uphold an 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, represents the pinnacle of advanced hydraulic system control. Expertly engineered for construction machinery and heavy-duty equipment, this versatile component is critical for high-stakes applications such as emergency rescue operations, tunnel engineering, mining, and municipal service vehicles. We are proud of our strategic collaborations with leading domestic manufacturers, playing a pivotal role in localizing core hydraulic components for high-end mechanical equipment. Guided by our philosophy-'serving customers with technology, impressing customers with our attitude, and retaining customers with quality'-we are committed to delivering exceptional products, services, and solutions. Our mission is to emerge as a globally trusted supplier of premier hydraulic components, setting new benchmarks of excellence worldwide.
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