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 consistent and unwavering performance, a true powerhouse in ensuring your operations run smoothly and efficiently without a hitch.;
HLPSV: Variable Displacement Pump - Exemplifying adaptability and flexibility, this pump offers unparalleled versatility to meet diverse operational needs with superior precision.;
(2) Connection Block Ports P & R Specifications - Where precision meets reliability, ensuring trustworthy operations and seamless integration::
2-G3/8; Designed for compact efficiency, it caters to streamlined and seamless operational flows, providing optimal performance.
3-G1/2; Built for robustness and dependability, this size provides a solid foundation for your system's enduring performance.;
4-G3/4; Offering advanced connectivity, it delivers superior control and enhanced system integration, ensuring top-tier operations.;
5, 55-G1; With a superior flow rate, this option is perfect for high-demand applications, ensuring consistent performance and reliability.;
6-G1 1/4; Providing unmatched performance, this option is designed to excel in the field and overcome challenges with ease.;
(3) Additional Components and Specifications - Elevating system capabilities to unparalleled heights::
C,Standard Type - A reliable and trustworthy baseline, expertly tailored to meet your essential operational needs with precision.;
G,Throttle Valve (For HLPSL only) - Ensures precision in control, enhancing overall system efficiency and operational effectiveness.;
H,Fixed Differential Overflow Valve for Enhanced Circulating Pressure (~14 bar, HLPSL) - Optimizes flow management, driving superior performance and dependability with every use.;
(4) Pilot Oil Circuit Pressure Options - Offering customized pressure control solutions for varied applications, ensuring your system is perfectly fine-tuned:0 - No pressure reducing valve; 1 - Pressure reducing valve (20 bar); 2 - Pressure reducing valve (40 bar); Tailored solutions are provided to seamlessly meet your specific operational needs efficiently.
(5) 2/2-way Magnetic Ball Valve for System Unloading - Streamlining efficiency and significantly boosting control operations: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; In each case, providing seamless control and operational flexibility.D/F - Comes with a pressure limiting valve strategically engineered for secondary pressure (F50), featuring a specified pressure value. This component provides advanced safety measures to secure operations, ensuring peace of mind and operational efficiency.
(6) Tool Adjustable, Pressure Limiting Valve in Connection Block: Offering diverse adjustable settings at 63, 120, 210, 280, 315, 350, and 400 bar levels, this component epitomizes versatility and precision. For those who prefer simplicity, /NF signifies the absence of a pressure limiting valve, specifically designed for HLPSV. This feature ensures optimal pressure control across varied scenarios, making it a cornerstone for your hydraulic systems.
(7) Product Series Classification - Embodying the Pinnacle of Excellence: This series stands as a testament to superior engineering and quality.;-2 2 Series; -3 3 Series; -5 5 Series; Each series is meticulously crafted to cater to every application, ensuring you receive a product that aligns with your specific needs and operational goals.
(8)Thread size of directional spool valve ports A & B:2-G3/8; 3-G1/2; 4-G3/4; 5-G1; including ancillary blocks or the intermediate transition block ZPL 5S(V)/H hydraulic control shut-off valve, which is meticulously crafted for seamless integration and performance.
(9)Directional valve block inflow controller options: Select from: 1, without inflow controller; 2, standard inflow controller; 4, an advanced 3-way flow controller for both inlet and outlet, perfect for the N 3/3-way valve; 5, reinforced inflow controller; 8, pre-selectable options, each ensuring precision and efficiency in every application.
(10) Valve core function symbols: Explore a comprehensive and diverse array of core functions: L, M, F, H, J, B, R, O, N, each meticulously engineered to fulfill specific functional requirements with high efficiency.
(11) Output flow code for ports A & B: Elevate your system efficiency with available maximum output flows: 3, 6, 10, 16, 25, 40, 63, 80, 120, 160, 210 L/min-tailored for optimal performance across a range of applications.
(12) Secondary pressure limitation options: Choose between: 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 robust system safety and reliability.
(13) Function ON/OFF and pressure outlet options: Customizable options include: 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, meticulously designed for precision control in various configurations.
(14) Operation modes: A diverse range of operation modes available: 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 (alignment of pilot oil ports with oil ports A and B); F, pure hydraulic control with perpendicular pilot oil ports, meticulously crafted for comprehensive control and adaptability.
(15) Ancillary block port sizes: Select from versatile options: /2 G3/8; /3 G1/2; /4 G3/4; /5 G1, engineered for seamless adaptability and integration across varied applications.
(16) End plate options: Discover a range of customized end plate selections designed to meet your specific needs. Our offerings include: E1, which is standard and comes equipped with an external discharge of pilot oil and an external oil return control port T. E2 is similar to E1 but features an additional port Y for added versatility. E3 includes a 2-position 3-way magnetic ball valve to enhance system pressure, aligning it with safety valve levels during power supply, providing an innovative solution for your operational requirements.
E4, which mirrors E1's capabilities with an internal discharge of pilot oil, and a sealing port T, offering a reliable and efficient option. E5 resembles E2, featuring internal discharge functionality, ensuring that your system remains uncompromised. E6 parallels E3, each option guarantees a sophisticated discharge control system, elevating your control capabilities to new heights.
(17) Control voltage and the length of anti-explosion type cable options: Explore a selection of control voltages tailored for safety and specialized applications. Choose from options like G12-12VDC, which ensures compatibility with a broad spectrum of industry-specific needs, offering unparalleled efficiency and security.G24 - Providing dependable operation under demanding conditions, the G24 option is crafted to fulfill your precise voltage requirements.-24VDC; G24Ex-3m-24VDC; G12Ex-3m-12VDC; G24MA-3m-24VDC; G - A comprehensive array of options designed to meet the exacting standards of modern industrial environments, ensuring optimal performance.12 - A critical choice for systems requiring precise voltage management and efficiency.bb621436 - Crafted to ensure seamless integration and exceptional reliability.
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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