Introducing our groundbreaking HLPSL and HLPSV load-sensitive proportional multi-way directional spool valves. These revolutionary engineering marvels seamlessly integrate pressure, flow, and directional control into a single, harmonious unit, guaranteeing unmatched performance and reliability. Typically composed of three essential functional modules - connecting blocks, directional valves, and end plates - these valves are meticulously crafted for incorporation into high-end hydraulic systems, pivotal in top-tier engineering machinery. They precisely govern the movement direction and speed of hydraulic cylinders, motors, and other actuators, delivering unparalleled precision and control. Key highlights include a compact structure, superior energy efficiency, and the capability for stepless speed control. Furthermore, they enable multiple actuators to operate simultaneously under varying loads, providing unrivaled performance and versatility for any application.
The HLPSL valves are expertly tailored for constant displacement pump systems, ensuring steadfast and reliable operation. Conversely, 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 emerge as the premier solution for advanced hydraulic control requirements.
| 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 indispensable foundation of steady and trustworthy performance, ensuring your operational success.;
HLPSV: Variable Displacement Pump - The pinnacle of adaptability and flexibility, tailored for dynamic requirements.;
(2) Connection Block Ports P & R Specifications - Precision-engineered for reliability you can count on::
2-G3/8; Streamlined for compact and efficient operations, maximizing your system's performance.
3-G1/2; Built to withstand rigorous demands, ensuring robust and dependable functionality.;
4-G3/4; Designed for advanced connectivity that delivers superior control capabilities.;
5, 55-G1; Engineered for optimal flow rates in high-demand applications, setting a new standard for performance.;
6-G1 1/4; Unmatched in-field performance, harnessing the power of innovation and efficiency.;
(3) Additional Components and Specifications - Enhancing system potential to new heights::
C,Standard Type - A reliable benchmark that meets your essential requirements with confidence.;
G,Throttle Valve (For HLPSL only) - Delivering precision control for superior operation.;
H,Fixed Differential Overflow Valve for Enhanced Circulating Pressure (~14 bar, HLPSL) - Expertly optimized flow management, boosting your system's performance to its peak.;
(4) Pilot Oil Circuit Pressure Options - Tailored pressure control solutions for diverse applications:0 - No pressure reducing valve; 1 - Pressure reducing valve (20 bar); 2 - Pressure reducing valve (40 bar); Custom-engineered to meet your specific operational needs.
(5) 2/2-way Magnetic Ball Valve for System Unloading - Enhancing streamlined efficiency and precision 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 - Incorporates a pressure limiting valve for secondary pressure (F50) with specified pressure values; Advanced safety features crafted for secure and reliable operations.
(6) Tool Adjustable, Pressure Limiting Valve in Connection Block: Discover the versatility of our adjustable settings, available at a range of 63, 120, 210, 280, 315, 350, 400 bar. Opt for /NF if no pressure limiting valve is required (HLPSV only). This ensures optimal pressure control tailored to a variety of operational scenarios.
(7) Product Series Classification - Identifying excellence: Unlock the potential of our expertly crafted series, designed to exceed expectations.;-2 2 Series; -3 3 Series; -5 5 Series; Each series is meticulously tailored to meet the unique demands of every application, ensuring unparalleled performance.
(8)Thread size of directional spool valve ports A & B: Experience seamless compatibility with our diverse thread size options.2-G3/8; 3-G1/2; 4-G3/4; 5-G1; Choose from a variety of sizes, including A, ancillary block, or intermediate transition block ZPL 5S(V)/H hydraulic control shut-off valve.
(9)Directional valve block inflow controller options: Enhance your system with our customizable inflow controllers. Options include: 1 - without inflow controller, 2 - standard inflow controller, 4 - 3-way flow controllers for comprehensive inlet and outlet management (ideal for N 3/3-way valve), 5 - reinforced inflow controller, 8 - pre-selectable, tailored to your specific needs.
(10) Valve core function symbols: L, M, F, H, J, B, R, O, N; Navigate our extensive selection of function symbols designed to cater to your operational preferences.
(11) Output flow code for ports A & B: Take advantage of our extensive range of maximum output flows, available in 3, 6, 10, 16, 25, 40, 63, 80, 120, 160, 210 L/min, to suit diverse application requirements.
(12) Secondary pressure limitation options: Versatile pressure control with N - no pressure limiting protection, C - simultaneous pressure limitation for actuator ports A & B, or A---B--- for separate pressure limitation, ensuring precise pressure management (unit: bar).
(13) Function ON/OFF and pressure outlet options: Choose from flexible options, including N - no 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, for tailored system control.
(14) Operation modes: Select from a variety of operation modes including A(1,2) - manual operation with long or short handle, E - electric proportional control, EA(1,2) - combined electric proportional control and manual operation, D - electric switching value control, DA(1,2) - electric switching value control with manual operation, M - manual friction positioning with long handle, H - pure hydraulic control with aligned pilot oil ports, and F - pure hydraulic control with perpendicular pilot oil ports, to perfectly align with your operational needs.
(15) Ancillary block port sizes: Offering a range of port sizes for diverse compatibility: /2 G3/8, /3 G1/2, /4 G3/4, /5 G1, for seamless integration into your system.
(16) End plate options: Providing versatile options to suit your system needs: E1 - standard end plate with external discharge and external oil return control port T, E2 - similar to E1 with additional port Y, E3 - features a 2-position 3-way magnetic ball valve for pressure management, ensuring safety and efficiency in power supply scenarios.
E4 - similar to E1 with internal discharge, E5 - similar to E2 with internal discharge, E6 - similar to E3 with internal discharge, where port T can be sealed, offering enhanced system flexibility and security.
(17) Control voltage and the length of anti-explosion type cable options: Achieve optimal safety and performance with 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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Answer:The lead time for production is typically around one month following receipt of payment. This period allows us to undertake meticulous preparation and enforce stringent quality control measures. Every detail is taken care of to ensure your products are delivered flawlessly.
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