Introducing our groundbreaking HLPSL and HLPSV load-sensitive proportional multi-way directional spool valves. These revolutionary engineering creations are the epitome of hydraulic sophistication, seamlessly integrating pressure, flow, and directional control into a single, harmonious masterpiece. This ensures extraordinary 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, indispensable 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. Additionally, they empower multiple actuators to operate simultaneously under varying loads, delivering unparalleled performance and versatility for any application imaginable.
The HLPSL valves are expertly tailored for constant displacement pump systems, ensuring steadfast and reliable operation in diverse settings. 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, establishing them as 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 backbone of stable performance, providing consistent, reliable operation for seamless workflow.;
HLPSV: Variable Displacement Pump - A masterclass in versatility, adjusting effortlessly to a spectrum of operational scenarios.;
(2) Connection Block Ports P & R Specifications - The perfect blend of accuracy and dependability for trustworthy performance::
2-G3/8; Optimized for efficiency, ensuring operations are compact and smooth.
3-G1/2; Engineered for sturdiness, a robust cornerstone for your system.;
4-G3/4; Fostering advanced connectivity, offering superior control and integration.;
5, 55-G1; Ideal for high-demand scenarios, delivering reliable, consistent performance with a remarkable flow rate.;
6-G1 1/4; Unmatched in performance, designed to meet and surpass field challenges.;
(3) Additional Components and Specifications - Elevating system capabilities to unprecedented levels::
C,Standard Type - A dependable foundational solution, tailored to meet essential operational needs.;
G,Throttle Valve (For HLPSL only) - Guarantees precision control, significantly boosting system efficiency.;
H,Fixed Differential Overflow Valve for Enhanced Circulating Pressure (~14 bar, HLPSL) - Elevates flow management, ensuring superior performance and reliability.;
(4) Pilot Oil Circuit Pressure Options - Delivering tailored pressure control solutions for diverse applications:0 - No pressure reducing valve; 1 - Pressure reducing valve (20 bar); 2 - Pressure reducing valve (40 bar); Tailored solutions for seamless operational needs.
(5) 2/2-way Magnetic Ball Valve for System Unloading - Enhancing efficiency and control:C - No magnetic ball valve; F - Normally open magnetic ball valve, pressurizes the pump when powered, unloads when unpowered; D - Normally closed magnetic ball valve, unloads when powered, pressurizes when unpowered;D/F - Features a state-of-the-art pressure limiting valve for secondary pressure (F50) with a precise specified pressure value. Experience unparalleled safety measures designed to fortify and secure operational procedures, ensuring paramount protection within your system.
(6) Tool Adjustable, Pressure Limiting Valve in Connection Block: Discover the ultimate in versatility and precision with adjustable settings at 63, 120, 210, 280, 315, 350, and 400 bar levels. This component is a cornerstone for adaptable hydraulic control. Opt for /NF, which signifies no pressure limiting valve, expertly crafted for the HLPSV. It guarantees optimal pressure management across a myriad of applications, making it indispensable for hydraulic systems.
(7) Product Series Classification - Embodying the Pinnacle of Excellence:;-2 2 Series; -3 3 Series; -5 5 Series; Each series is crafted with meticulous precision to cater to every application, ensuring you receive a product that aligns perfectly with your unique requirements.
(8)Thread size of directional spool valve ports A & B:2-G3/8; 3-G1/2; 4-G3/4; 5-G1; including ancillary blocks or the innovative intermediate transition block ZPL 5S(V)/H hydraulic control shut-off valve, crafted for flawless integration.
(9)Directional valve block inflow controller options: Choose from an array of options: 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, customizable pre-selectable options, each engineered for maximum precision and efficiency.
(10) Valve core function symbols: Delve into a vast selection of core functions: L, M, F, H, J, B, R, O, N, each meticulously engineered to satisfy distinct functional needs.
(11) Output flow code for ports A & B: Amplify efficiency with a range of maximum output flows: 3, 6, 10, 16, 25, 40, 63, 80, 120, 160, 210 L/min, each calibrated for peak performance.
(12) Secondary pressure limitation options: Select from: N, no pressure limiting protection; C, simultaneous pressure limitation of actuator ports A & B; A---B---, independent pressure limitation for ports A & B, measured in bar, ensuring robust system security.
(13) Function ON/OFF and pressure outlet options: Enjoy customizable options: 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 tailored for precision control.
(14) Operation modes: Explore diverse operation modes: A(1,2), manual operation with optional long or short handle; E, electric proportional control; EA(1,2), a harmonious blend of electric proportional control and manual operation; D, electric switching value control; DA(1,2), an integration of 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, providing comprehensive control.
(15) Ancillary block port sizes: Select from versatile options: /2 G3/8; /3 G1/2; /4 G3/4; /5 G1, each engineered to ensure seamless adaptability and integration.
(16) End Plate Options: We offer a bespoke selection of end plates to suit your hydraulic needs. Choose from E1, our standard model, featuring external discharge for pilot oil and a control port T for external oil return. E2 builds on E1 with an additional port Y, enhancing your system's versatility. Opt for E3, equipped with a 2-position 3-way magnetic ball valve, which elevates system pressure to safety valve levels when powered, ensuring top-tier safety performance.
E4 offers the convenience of E1 with internal pilot oil discharge and a sealing port T. E5 mirrors E2 with the same internal discharge, while E6 takes inspiration from E3, providing sophisticated and precise discharge control for highly controlled operations.
(17) Control Voltage and Anti-Explosion Cable Options: Discover a range of voltage options for optimal safety and compatibility with specialized applications. G12-12VDC is just one example of our commitment to security and adaptability.Choose G24 for consistent and reliable operations, ensuring your equipment performs seamlessly.Harness the power of modern technology without compromise.Select from our premium offerings: 24VDC; G24Ex-3m-24VDC; G12Ex-3m-12VDC; and G24MA-3m-24VDC, each meticulously designed to meet rigorous standards.Experience innovative design with G12 for unparalleled efficiency.bb621436
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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