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 - This is the cornerstone of consistent and unwavering performance, ensuring that your operations run smoothly and efficiently.;
HLPSV: Variable Displacement Pump - Exemplifying adaptability and flexibility, this component offers unparalleled versatility to meet diverse operational needs.;
(2) Connection Block Ports P & R Specifications - This is where precision meets reliability, ensuring trustworthy operations::
2-G3/8; Designed for compact efficiency, catering to streamlined and seamless operational flows.
3-G1/2; Built for robustness and dependability, providing a solid foundation for your system.;
4-G3/4; Offering advanced connectivity, delivering superior control and enhanced system integration.;
5, 55-G1; With a superior flow rate, this option is perfect for high-demand applications, ensuring consistent performance.;
6-G1 1/4; Providing unmatched performance, designed to excel in the field and overcome challenges.;
(3) Additional Components and Specifications - Elevating system capabilities to new heights::
C,Standard Type - A reliable and trustworthy baseline, tailored to your essential operational needs.;
G,Throttle Valve (For HLPSL only) - Ensures precision in control, enhancing overall system efficiency.;
H,Fixed Differential Overflow Valve for Enhanced Circulating Pressure (~14 bar, HLPSL) - Optimizes flow management, driving superior performance and dependability.;
(4) Pilot Oil Circuit Pressure Options - Offering customized pressure control solutions for varied applications:0 - No pressure reducing valve; 1 - Pressure reducing valve (20 bar); 2 - Pressure reducing valve (40 bar); Providing tailored solutions to meet your specific operational needs seamlessly.
(5) 2/2-way Magnetic Ball Valve for System Unloading - Streamlining 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; Providing advanced safety measures to secure operations, this feature ensures that the system operates within safe limits, enhancing reliability and prevention of overpressure scenarios.
(6) Tool Adjustable, Pressure Limiting Valve in Connection Block: Unlock the power of precision and adaptability with adjustable settings at 63, 120, 210, 280, 315, 350, and 400 bar levels. This component is a hallmark of versatility, catering to diverse hydraulic demands. For users seeking straightforward simplicity, /NF offers a streamlined option without a pressure limiting valve, specially crafted for HLPSV, ensuring optimal control and unmatched performance in every application.
(7) Product Series Classification - Embodying the Pinnacle of Excellence: Our series offerings present an unrivaled standard of quality and precision.;-2 2 Series; -3 3 Series; -5 5 Series; Each series is meticulously tailored to suit every application, ensuring that you receive a product that meets your precise requirements with excellence ingrained in every aspect.
(8)Thread size of directional spool valve ports A & B: Discover the meticulously crafted options designed for superior integration and functionality.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, crafted for seamless integration, providing robust performance across various applications.
(9)Directional valve block inflow controller options: Select from a suite of advanced options: 1, without inflow controller for basic needs; 2, standard inflow controller for typical applications; 4, an innovative 3-way flow controller for both inlet and outlet, perfect for the N 3/3-way valve; 5, reinforced inflow controller for enhanced performance; 8, pre-selectable options, each ensuring precision and efficiency, making it ideal for customized solutions.
(10) Valve core function symbols: Explore a comprehensive array of core functions tailored for diverse hydraulic tasks: L, M, F, H, J, B, R, O, N, each meticulously designed to fulfill unique functional requirements with precision and adeptness.
(11) Output flow code for ports A & B: Maximize efficiency with available maximum output flows: 3, 6, 10, 16, 25, 40, 63, 80, 120, 160, 210 L/min, each tailored for optimal performance and engineered to meet specific operational needs.
(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 tailored for ports A & B, all measured in bar, ensuring robust system safety and enhanced operational integrity.
(13) Function ON/OFF and pressure outlet options: Customizable to fit precise needs, options include: N, without function ON/OFF or pressure outlet for basic configurations; X, C type pressure limitation for specific requirements; S/S1, AB type pressure limitation for advanced control; A, electrical ON/OFF on side A; B, electrical ON/OFF on side B, each designed for precision control and adaptability.
(14) Operation modes: Embrace the versatility with diverse modes: A(1,2), manual operation with optional long or short handle for ergonomic control; E, electric proportional control for precision adjustments; EA(1,2), a blend of electric proportional control and manual operation for hybrid use; D, electric switching value control; DA(1,2), combined electric switching value control and manual operation; M, manual friction positioning with long handle for stability; H, pure hydraulic control with alignment of pilot oil ports with oil ports A and B; F, pure hydraulic control with perpendicular pilot oil ports, crafted for comprehensive control and operational flexibility.
(15) Ancillary block port sizes: Select from versatile options: /2 G3/8; /3 G1/2; /4 G3/4; /5 G1, each engineered for seamless adaptability, ensuring a perfect fit for varied applications and system expansions.
(16) End Plate Options: Discover tailored end plate choices designed for versatility and efficiency: E1 - Standard model with external discharge of pilot oil and an external oil return control port T, offering reliable performance. E2 - Similar to E1 but enhanced with an additional port Y for increased functionality. E3 - Features a 2-position 3-way magnetic ball valve, allowing the elevation of system pressure to safety valve levels during power supply, ensuring optimal safety and control.
E4 - Echoes the features of E1 but with internal discharge of pilot oil and a sealed port T, providing enhanced internal control. E5 - Based on E2, this option offers internal discharge, maintaining the integrity of sophisticated discharge control. E6 - Built on the E3 model, it ensures exceptional control through its refined discharge management.
(17) Control Voltage & Anti-Explosion Cable Options: Choose from our precision-engineered options like G12-12VDC, offering unparalleled safety and compatibility for specialized applications where reliability is paramount.G24 - A robust choice providing the perfect balance of power and dependability.-24VDC; G24Ex-3m-24VDC; G12Ex-3m-12VDC; G24MA-3m-24VDC; G - Featuring cables designed for durability and performance in demanding environments.12 - Precision and reliability in voltage options tailored for your needs.bb621436 - Unique identifier for seamless product integration and tracking.
Since our inception in 2009, Jiangsu KM Hydraulic Control System Co., Ltd. has emerged as a beacon of innovation and unmatched excellence within the hydraulic industry. Proudly operating as a prestigious subsidiary of the renowned China Baoan Group (stock code: 000009), we are celebrated as a distinguished national high-tech enterprise. Our forte lies in the meticulous research, development, manufacturing, and sales of premium hydraulic components. Our esteemed recognition as a national 'specialized, refined, and innovative' small giant enterprise is a testament to our unwavering dedication to technological advancement and superior quality. This relentless pursuit of excellence firmly establishes us as frontrunners in our field, consistently setting new standards.
Our flagship offering, the load-sensitive proportional valve, stands as the quintessence of advanced hydraulic system control. Masterfully engineered for construction machinery and heavy-duty equipment, this versatile component is indispensable for high-stakes applications, including emergency rescue operations, tunnel engineering, mining, and municipal service vehicles. We take immense pride in our strategic alliances with numerous leading domestic manufacturers, playing a pivotal role in localizing core hydraulic components for high-end mechanical equipment. Aligned with 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, consistently setting new benchmarks of excellence on the world stage.
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