Introducing our groundbreaking HLPSL and HLPSV load-sensitive proportional multi-way directional spool valves. These revolutionary engineering creations represent the pinnacle of hydraulic innovation, seamlessly integrating pressure, flow, and directional control into a singular, harmonious masterpiece. This guarantees unparalleled performance and reliability in every application. Typically composed of three essential functional modules - connecting blocks, directional valves, and end plates - these valves are meticulously crafted for integration into high-end hydraulic systems, crucial for top-tier engineering machinery. They precisely govern the movement direction and speed of hydraulic cylinders, motors, and other actuators, delivering unmatched precision and control. Key highlights encompass a compact structure, superior energy efficiency, and the capability for stepless speed control. Beyond this, they empower multiple actuators to operate simultaneously under varying loads, delivering unrivaled performance and versatility for any application.
The HLPSL valves are expertly tailored for constant displacement pump systems, ensuring steadfast and reliable operation in every setting. On the other hand, 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 stand out as the premier solution for advanced hydraulic control requirements, offering a perfect blend of precision, reliability, and efficiency.
| 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 steadfast performance, ensuring your systems operate smoothly and efficiently, establishing new standards in reliability.;
HLPSV: Variable Displacement Pump - Representing adaptability and flexibility, offering unmatched versatility to cater to diverse operational demands.;
(2) Connection Block Ports P & R Specifications - Where precision intertwines with reliability, granting you dependable and flawless operations::
2-G3/8; Engineered for compact efficiency, it facilitates streamlined and seamless flow in operations.
3-G1/2; Crafted for robustness and dependability, it serves as a solid backbone for your system's infrastructure.;
4-G3/4; Providing advanced connectivity, it offers superior control for enhanced system integration.;
5, 55-G1; With an exceptional flow rate, this option is ideal for high-demand applications, ensuring seamless performance.;
6-G1 1/4; Delivering peerless performance, it is designed to excel in challenging environments.;
(3) Additional Components and Specifications - Elevating your system capabilities to new heights::
C,Standard Type - A reliable and dependable baseline, tailored to meet your essential operational requirements.;
G,Throttle Valve (For HLPSL only) - Ensures precise control, amplifying overall system efficiency.;
H,Fixed Differential Overflow Valve for Enhanced Circulating Pressure (~14 bar, HLPSL) - Optimizes flow management, ensuring peak performance and reliability.;
(4) Pilot Oil Circuit Pressure Options - Delivering customized pressure control solutions tailored for varied applications:0 - No pressure reducing valve; 1 - Pressure reducing valve (20 bar); 2 - Pressure reducing valve (40 bar); Providing bespoke solutions to seamlessly meet your specific operational requirements.
(5) 2/2-way Magnetic Ball Valve for System Unloading - Enhancing efficiency and boosting control:C - No magnetic ball valve; F - Normally open magnetic ball valve, pressurizing the pump when powered, unloading it when unpowered; D - Normally closed magnetic ball valve, unloading the pump when powered, pressurizing it when unpowered;D/F - Comes with a pressure limiting valve for secondary pressure (F50), featuring a specified pressure value designed to deliver advanced safety measures that secure and optimize operational efficiency.
(6) Tool Adjustable, Pressure Limiting Valve in Connection Block: This highly adaptable component offers adjustable settings of 63, 120, 210, 280, 315, 350, and 400 bar levels. It epitomizes versatility and precision, catering to diverse requirements. For those who prefer simplicity, /NF indicates the absence of a pressure limiting valve, specifically tailored for HLPSV, ensuring optimal pressure control across various scenarios, making it a vital element for your hydraulic applications.
(7) Product Series Classification - Embodying the Pinnacle of Excellence:;-2 2 Series; -3 3 Series; -5 5 Series; Each series is meticulously tailored to cater to every application, ensuring you receive a product that precisely meets your needs.
(8)Thread size of directional spool valve ports A & B:2-G3/8; 3-G1/2; 4-G3/4; 5-G1; Featuring ancillary blocks or the intermediate transition block ZPL 5S(V)/H hydraulic control shut-off valve, engineered for seamless integration with existing systems.
(9)Directional valve block inflow controller options: Choose from 1, without inflow controller; 2, standard inflow controller; 4, advanced 3-way flow controller for both inlet and outlet, ideally suited for the N 3/3-way valve; 5, reinforced inflow controller; 8, pre-selectable options, each ensuring unparalleled precision and efficiency.
(10) Valve core function symbols: Explore our comprehensive array of core functions: L, M, F, H, J, B, R, O, N, each meticulously crafted to fulfill distinct functional requirements, ensuring optimal system performance.
(11) Output flow code for ports A & B: Enhance efficiency with available maximum output flows: 3, 6, 10, 16, 25, 40, 63, 80, 120, 160, 210 L/min, expertly tailored for peak performance.
(12) Secondary pressure limitation options: Select from: N, no pressure limiting protection; C, simultaneous pressure limitation of actuator ports A & B; A---B---, independent pressure limitation for ports A & B, all measured in bar, ensuring comprehensive system safety.
(13) Function ON/OFF and pressure outlet options: Tailor your controls with customizable options like: N, without function ON/OFF or 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, each designed for precise control.
(14) Operation modes: Choose from diverse operation modes: A(1,2), manual operation with optional long or short handle; E, electric proportional control; EA(1,2), a blend of electric proportional control and manual operation; D, electric switching value control; DA(1,2), combined electric switching value control and manual operation; M, manual friction positioning with long handle; H, pure hydraulic control (aligning pilot oil ports with oil ports A and B); F, pure hydraulic control with perpendicular pilot oil ports, all crafted for comprehensive control solutions.
(15) Ancillary block port sizes: Opt for versatile choices: /2 G3/8; /3 G1/2; /4 G3/4; /5 G1, all engineered for seamless adaptability to meet varied installation requirements.
(16) End plate options: Discover a world of customization with our tailored end plate options. Choose from: E1, the standard choice, featuring an external discharge of pilot oil and an external oil return control port T. Elevate your system's capabilities with E2, which mirrors E1 but includes an additional port Y for enhanced utility. For advanced system pressure management, E3 stands out with its 2-position 3-way magnetic ball valve, designed to elevate system pressure to safety valve levels during power supply, ensuring optimal performance and safety.
E4, crafted with precision, offers the reliable features of E1 but with an internal discharge of pilot oil, sealing port T to ensure seamless operation. E5 takes the excellence of E2 and incorporates internal discharge for added sophistication. Meanwhile, E6, echoing the design of E3, guarantees sophisticated discharge control, meeting the highest standards of performance and efficiency.
(17) Control voltage and the length of anti-explosion type cable options: Tailor your system's power needs with our selection of control voltage options. Choose G12-12VDC for applications requiring safety and specialized compatibility, ensuring your operations remain secure and efficient.G24-24VDC; For specialized operations, consider G24Ex-3m-24VDC; G12Ex-3m-12VDC; or G24MA-3m-24VDC. Each option is designed for robust performance and safety, ensuring your system's integrity under various conditions.12bb621436
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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