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, it ensures your operations flow with seamless precision and peak efficiency.;
HLPSV: Variable Displacement Pump - Exemplifying adaptability and flexibility with its unparalleled versatility, tailored to meet the dynamic demands of diverse operational requirements.;
(2) Connection Block Ports P & R Specifications - Where meticulous precision meets unwavering reliability, facilitating trustworthy and efficient operations::
2-G3/8; Crafted for compact efficiency, it caters to streamlined and seamless operational flows, enhancing fluid dynamics.
3-G1/2; Engineered for robustness and dependability, providing a resilient and solid foundation for your system's core operations.;
4-G3/4; Delivering advanced connectivity and superior control, it enhances system integration for optimized performance.;
5, 55-G1; With an exceptional flow rate, this choice is ideal for high-demand applications, ensuring unwavering consistency and reliability.;
6-G1 1/4; Designed to provide unmatched performance, excelling in the field and overcoming the most challenging scenarios with ease.;
(3) Additional Components and Specifications - Elevating system capabilities to unparalleled heights::
C,Standard Type - A reliable and trustworthy baseline, meticulously tailored to fulfill your essential operational needs.;
G,Throttle Valve (For HLPSL only) - Guarantees precision in control, enhancing overall system efficiency and performance.;
H,Fixed Differential Overflow Valve for Enhanced Circulating Pressure (~14 bar, HLPSL) - Optimizes flow management for superior performance and dependability.;
(4) Pilot Oil Circuit Pressure Options - Delivering customized pressure control solutions tailored for diverse applications:0 - No pressure reducing valve; 1 - Pressure reducing valve (20 bar); 2 - Pressure reducing valve (40 bar); Providing bespoke solutions to meet your specific operational demands seamlessly and efficiently.
(5) 2/2-way Magnetic Ball Valve for System Unloading - Streamlining efficiency and boosting operational control:C - No magnetic ball valve; F - Normally open magnetic ball valve, pressurizes the pump when powered, unloading it when unpowered; D - Normally closed magnetic ball valve, unloads the pump when powered, pressurizes it when unpowered;D/F - This product is equipped with a pressure limiting valve for secondary pressure (F50), featuring a pre-set pressure value that offers state-of-the-art safety measures to ensure the security and reliability of operations.
(6) Tool Adjustable, Pressure Limiting Valve in Connection Block: This component stands as a paragon of versatility and precision, offering adjustable settings at 63, 120, 210, 280, 315, 350, and 400 bar levels. For those seeking simplicity, /NF signifies no pressure limiting valve, specifically crafted for HLPSV. This feature guarantees optimal pressure control across diverse scenarios, rendering it crucial for your hydraulic solutions.
(7) Product Series Classification - The Pinnacle of Excellence Embodied:;-2 2 Series; -3 3 Series; -5 5 Series; Each series is precisely tailored to meet every application need, assuring you receive a product that exactly matches your requirements.
(8)Thread size of directional spool valve ports A & B:2-G3/8; 3-G1/2; 4-G3/4; 5-G1; complemented with ancillary blocks or the intermediate transition block ZPL 5S(V)/H hydraulic control shut-off valve, designed for flawless integration.
(9)Directional valve block inflow controller options: Choose among: 1, without inflow controller; 2, standard inflow controller; 4, an advanced 3-way flow controller for both inlet and outlet, ideal for the N 3/3-way valve; 5, reinforced inflow controller; 8, pre-selectable options, each delivering precision and efficiency.
(10) Valve core function symbols: Discover a diverse array of core functions: L, M, F, H, J, B, R, O, N, each expertly crafted to meet unique functional needs.
(11) Output flow code for ports A & B: Achieve maximum efficiency with available maximum output flows: 3, 6, 10, 16, 25, 40, 63, 80, 120, 160, 210 L/min, configured for optimal performance.
(12) Secondary pressure limitation options: Select from: N, no pressure limiting protection; C, concurrent pressure limitation of actuator ports A & B; A---B---, independent pressure limitation for ports A & B, all measured in bar, ensuring robust system safety.
(13) Function ON/OFF and pressure outlet options: Customizable choices 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, each engineered for exact control.
(14) Operation modes: Embrace diverse operation modes: A(1,2), manual operation with optional long or short handle; E, electric proportional control; EA(1,2), a fusion 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 control.
(15) Ancillary block port sizes: Choose from versatile options: /2 G3/8; /3 G1/2; /4 G3/4; /5 G1, meticulously engineered for seamless adaptability.
(16) End plate options: Discover our customized end plate selections designed to meet your precise requirements. Options include: E1, the standard choice, complete with external discharge of pilot oil and an external oil return control port T; E2, similar to E1 but enhanced with an additional port Y for added flexibility; E3, featuring a 2-position 3-way magnetic ball valve, which elevates the system pressure to safety valve levels when power is supplied, ensuring utmost efficiency and safety.
E4, with features akin to E1, offers internal discharge of pilot oil and a sealing port T; E5, comparable to E2, incorporates internal discharge capabilities; E6, mirroring E3, guarantees refined discharge control, providing sophisticated solutions tailored for your needs.
(17) Control voltage and anti-explosion type cable length options: Choose from our diverse range of options, including G12-12VDC, designed to ensure maximum safety and compatibility with specialized applications in demanding environments.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 brilliantly illuminated the hydraulic industry with groundbreaking innovations and unmatched 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, represents 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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