Presenting our groundbreaking HLPSL and HLPSV load-sensitive proportional multi-way directional spool valves. These cutting-edge engineering marvels bring together pressure, flow, and directional control into one seamless unit, ensuring unparalleled performance and reliability. Typically crafted with three essential functional modules-connecting blocks, directional valves, and end plates-these valves are meticulously designed for integration into high-end hydraulic systems, crucial in top-tier engineering machinery. They provide precise control over the movement direction and speed of hydraulic cylinders, motors, and other actuators, ensuring unmatched precision and control. Key features include a compact structure, superior energy efficiency, and the ability for stepless speed control. Additionally, they support the simultaneous operation of multiple actuators under varying loads, offering unrivaled performance and versatility across a wide range of applications.
The HLPSL valves are meticulously tailored for constant displacement pump systems, ensuring steadfast and reliable functionality. On the other hand, the HLPSV valves are masterfully engineered for variable pump systems. While HLPSV valves may demonstrate a slightly slower response time, they excel in delivering exceptional energy-saving performance, making them the pinnacle choice for applications where efficiency is paramount. With their state-of-the-art engineering and energy-efficient design, HLPSV valves stand out as the premier solution for advanced hydraulic control needs.
| 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 backbone of consistent and reliable performance, offering unwavering efficiency.;
HLPSV: Variable Displacement Pump - Embodying adaptability and flexibility, tailored for versatile operations.;
(2) Connection Block Ports P & R Specifications - Delivering precision and reliability that you can count on::
2-G3/8; Compact and efficient, designed for streamlined operations and optimal space utilization.
3-G1/2; Built to be robust and dependable, ensuring long-lasting performance.;
4-G3/4; Leading in advanced connectivity, offering superior control and management.;
5, 55-G1; Designed to provide a superior flow rate, meeting high-demand applications with ease.;
6-G1 1/4; Delivering unmatched performance in the field, setting new standards in hydraulic control.;
(3) Additional Components and Specifications - Elevating your system's capabilities to new heights::
C,Standard Type - The dependable baseline for all your essential operational needs.;
G,Throttle Valve (For HLPSL only) - Enabling precise control for enhanced performance.;
H,Fixed Differential Overflow Valve for Enhanced Circulating Pressure (~14 bar, HLPSL) - Masterfully optimized flow management to boost performance.;
(4) Pilot Oil Circuit Pressure Options - Customizable pressure control, catering to diverse applications:0 - No pressure reducing valve; 1 - Pressure reducing valve (20 bar); 2 - Pressure reducing valve (40 bar); Delivering tailored solutions for your specific needs.
(5) 2/2-way Magnetic Ball Valve for System Unloading - Streamlined efficiency and impeccable control: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;D/F - Equipped with a pressure limiting valve for secondary pressure (F50) with specified pressure value; Advanced safety measures ensuring secure and reliable operations.
(6) Tool Adjustable, Pressure Limiting Valve in Connection Block: Experience seamless adaptability with adjustable settings available at 63, 120, 210, 280, 315, 350, 400 bar; /NF signifies no pressure limiting valve included (HLPSV only); This ensures superior pressure control tailored for diverse operational scenarios.
(7) Product Series Classification - A hallmark of excellence:;-2 2 Series; -3 3 Series; -5 5 Series; Each series is crafted with precision to meet specific application needs.
(8)Thread size of directional spool valve ports A & B:2-G3/8; 3-G1/2; 4-G3/4; 5-G1; Complemented by an ancillary block or 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 (perfect for N 3/3-way valve); 5, strengthened inflow controller; 8, pre-selectable, offering a versatile range for precision control;
(10) Valve core function symbols: L, M, F, H, J, B, R, O, N; Each symbol represents a specific functional attribute, ensuring tailored performance.
(11) Output flow code for ports A & B: Offering a spectrum of maximum output flows: 3, 6, 10, 16, 25, 40, 63, 80, 120, 160, 210 (L/min); These options empower you to select the perfect flow rate for your application.
(12) Secondary pressure limitation options: N, no pressure limiting protection; C, comprehensive limitation on actuator ports A & B; A---B---, individualized pressure limitation for actuator ports A & B, unit (bar);
(13) Function ON/OFF and pressure outlet options: N, without function ON/OFF and 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, designed for precise control and safety assurance.
(14) Operation modes: A(1,2), manual operation with long handle (1=without handle, 2=with short handle); E, electric proportional control; EA(1,2), electric proportional control combined with manual operation (1=without handle, 2=with short handle); D, electric switching value control; DA(1,2), electric switching value combined with manual operation (1=without handle, 2=with short handle); M, manual friction positioning with long handle; H, exclusive hydraulic control (two pilot oil ports align with oil ports A and B); F, exclusive hydraulic control (two pilot oil ports perpendicular to oil ports A and B and outward respectively), offering diverse control methods for every operational need.
(15) Ancillary block port sizes: /2 G3/8; /3 G1/2; /4 G3/4; /5 G1; These sizes ensure compatibility and seamless integration within existing systems.
(16) End plate options: E1, standard end plate, featuring external discharge of pilot oil, with provision for connecting oil return control port T externally; E2, akin to E1, with port Y additionally attached for enhanced functionality; E3, utilizes a 2-position 3-way magnetic ball valve, ensuring system pressure aligns with safety valve thresholds in power supply conditions;
E4, akin to E1 with internal discharge of pilot oil, port T can be sealed; E5, similar to E2 with internal discharge, offering option to seal port T; E6, parallels E3 with internal pilot oil discharge, port T can be sealed; These configurations provide flexibility and enhanced safety in hydraulic applications.
(17) Choose from a diverse range of control voltage options and lengths for anti-explosion type cables: G12-12VDC;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 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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