Introducing our groundbreaking HLPSL and HLPSV Load-Sensitive Proportional Multi-Way Directional Spool Valves. These revolutionary engineering creations embody the pinnacle of hydraulic innovation, seamlessly marrying pressure, flow, and directional control into a singular, harmonious masterpiece. This guarantees unparalleled performance and reliability across a spectrum of applications. 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 include 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, offering 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 foundation of reliability, delivering seamless and consistent performance to guarantee smooth and efficient system operations.;
HLPSV: Variable Displacement Pump - A model of adaptability and versatility, offering extraordinary flexibility to meet a broad spectrum of operational needs.;
(2) Connection Block Ports P & R Specifications - Where precision meets reliability, crafting a robust operational framework you can trust::
2-G3/8; Designed for compact proficiency, aimed at supporting streamlined and seamless operational flows.
3-G1/2; Engineered for robustness and reliability, forming a solid base for your system's integrity.;
4-G3/4; With advanced connectivity, offering superior control and enhanced system integration.;
5, 55-G1; Optimized for superior flow rates, perfect for high-demand applications, ensuring consistent and reliable performance.;
6-G1 1/4; Delivering unmatched performance, expertly crafted to excel in demanding environments and tackle challenges effortlessly.;
(3) Additional Components and Specifications - Elevating your system's capabilities to unprecedented levels::
C,Standard Type - A reliable and trusted foundation, precisely designed to meet essential operational requirements.;
G,Throttle Valve (For HLPSL only) - Ensures precision control, boosting the overall efficiency of your system.;
H,Fixed Differential Overflow Valve for Enhanced Circulating Pressure (~14 bar, HLPSL) - Maximizes flow management, driving exceptional performance and dependability.;
(4) Pilot Oil Circuit Pressure Options - Offering bespoke pressure control solutions for varied applications:0 - No pressure reducing valve; 1 - Pressure reducing valve (20 bar); 2 - Pressure reducing valve (40 bar); Crafting tailored solutions to seamlessly match your specific operational demands.
(5) 2/2-way Magnetic Ball Valve for System Unloading - Boosting efficiency and precision control:C - No magnetic ball valve; F - Normally open magnetic ball valve, pressurizes the pump when powered and unloads when unpowered; D - Normally closed magnetic ball valve, unloads when powered and pressurizes when unpowered;D/F - Featuring an exquisitely precision-engineered pressure limiting valve designed for secondary pressure (F50) with a meticulously defined pressure value, this state-of-the-art feature guarantees superior safety measures. It enhances operational security and bolsters reliability, providing an unmatched level of safety assurance.
(6) Tool Adjustable, Pressure Limiting Valve in Connection Block: Indulge in unparalleled versatility and precision with adjustable settings at varied levels of 63, 120, 210, 280, 315, 350, and 400 bar. This component is a shining example of adaptability, meeting all hydraulic demands. For simplified configurations, /NF denotes the absence of a pressure limiting valve, intricately crafted for HLPSV, ensuring impeccable pressure management across a multitude of applications.
(7) Product Series Classification - A Pinnacle of Engineering Prowess:;-2 2 Series; -3 3 Series; -5 5 Series; Each series is a work of art, expertly engineered to suit every application, ensuring receipt of a product that aligns perfectly with your specific needs.
(8)Thread size of directional spool valve ports A & B:2-G3/8; 3-G1/2; 4-G3/4; 5-G1; including auxiliary blocks or the intermediate transition block ZPL 5S(V)/H hydraulic control shut-off valve, precisely crafted for smooth and seamless integration.
(9)Directional valve block inflow controller options: Select from an array: 1, without inflow controller; 2, standard inflow controller; 4, an advanced 3-way flow controller for both inlet and outlet, designed for the N 3/3-way valve; 5, enhanced inflow controller; 8, pre-selectable options, each offering precision and outstanding efficiency.
(10) Valve core function symbols: Unveil a comprehensive array of core functions: L, M, F, H, J, B, R, O, N, each painstakingly crafted to satisfy specific functional requirements.
(11) Output flow code for ports A & B: Attain peak efficiency with available peak output flows: 3, 6, 10, 16, 25, 40, 63, 80, 120, 160, 210 L/min, each designed to deliver superior performance and reliability.
(12) Secondary pressure limitation options: Choose 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 steadfast system safety.
(13) Function ON/OFF and pressure outlet options: Personalize with choices 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 engineered for precision control and functionality.
(14) Operation modes: Choose from a plethora of 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 (alignment of pilot oil ports with oil ports A and B); F, pure hydraulic control with perpendicular pilot oil ports, crafted for comprehensive and precise control.
(15) Ancillary block port sizes: Experience unparalleled versatility with our wide selection of port size options: /2 G3/8; /3 G1/2; /4 G3/4; /5 G1. Each expertly crafted to ensure seamless adaptability and flawless integration within your system, setting new standards for precision and convenience.
(16) End plate options: Elevate your system with our curated selection of end plate solutions. E1, our standard bearer, offers an external discharge of pilot oil coupled with an external oil return control port T. E2, closely related to E1, adds an extra port Y for boosted functionality. E3 features a 2-position 3-way magnetic ball valve, empowering your system to elevate pressure to safety valve levels when powered, ensuring paramount safety and reliability.
E4, crafted in the image of E1, innovatively incorporates an internal discharge of pilot oil with a sealed port T, offering enhanced discharge management. E5, echoing E2, also includes internal discharge, while E6 mirrors the elegance of E3. Each variant is meticulously designed to guarantee superior discharge control and operational excellence.
(17) Control voltage and anti-explosion cable options: Opt for secure, reliable solutions with our range of control voltage options like G12-12VDC, precisely engineered for safety and specialization in high-demand environments, ensuring peace of mind and peak performance.G24-24VDC; G24Ex-3m-24VDC; G12Ex-3m-12VDC; G24MA-3m-24VDC; G12bb621436
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 Safety Atex Valve, our flagship product, is a shining example of cutting-edge hydraulic system control through its load-sensitive proportional valve. Painstakingly designed for construction machinery and heavy-duty equipment, this adaptable component is essential for critical applications, including emergency rescue operations, tunnel engineering, mining, and municipal service vehicles. We take immense pride in our strategic partnerships with numerous leading domestic manufacturers, where we contribute significantly to 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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