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 - This is the backbone of consistent and unwavering performance, ensuring that your operations flow smoothly and efficiently, every single time.;
HLPSV: Variable Displacement Pump - A testament to adaptability and flexibility, offering unmatched versatility that caters to diverse and dynamic operational requirements.;
(2) Connection Block Ports P & R Specifications - Where precise engineering meets reliability, guaranteeing operations you can trust::
2-G3/8; Engineered for compact and efficient performance, crafted to enhance streamlined and seamless operational flows.
3-G1/2; Designed for strength and dependability, providing a robust foundation for your hydraulic system.;
4-G3/4; Facilitates advanced connectivity, delivering superior control and optimal system integration.;
5, 55-G1; Perfect for high-demand applications, this option boasts a superior flow rate, ensuring consistent and reliable performance.;
6-G1 1/4; Engineered for unmatched performance, designed to excel in demanding fields and conquer challenges with ease.;
(3) Additional Components and Specifications - Elevating your lifting system capabilities to unprecedented heights::
C,Standard Type - A dependable and trustworthy baseline, meticulously tailored to meet your essential operational needs with precision.;
G,Throttle Valve (For HLPSL only) - Guarantees precise control, significantly enhancing overall system efficiency.;
H,Fixed Differential Overflow Valve for Enhanced Circulating Pressure (~14 bar, HLPSL) - Optimizes flow management, driving superior performance and unwavering dependability.;
(4) Pilot Oil Circuit Pressure Options - Custom pressure control solutions tailored for varied applications:0 - No pressure reducing valve; 1 - Pressure reducing valve (20 bar); 2 - Pressure reducing valve (40 bar); Offering bespoke solutions to seamlessly meet your specific operational needs.
(5) 2/2-way Magnetic Ball Valve for System Unloading - Streamlining efficiency and amplifying control for your operations:C - No magnetic ball valve; F - Normally open magnetic ball valve, pressurizes the pump when powered and unloads it when unpowered; D - Normally closed magnetic ball valve, unloads the pump when powered and pressurizes it when unpowered;D/F - Equipped with a pressure limiting valve for secondary pressure (F50) that features a specified pressure value; Ensuring advanced safety measures to secure and protect your operations.
(6) Tool Adjustable, Pressure Limiting Valve in Connection Block: Engineered for precision and adaptability, this valve offers adjustable settings at 63, 120, 210, 280, 315, 350, and an impressive 400 bar levels. It epitomizes versatility, ensuring optimal pressure management across diverse hydraulic scenarios. For those who value simplicity, the /NF option signifies no pressure limiting valve, specifically crafted for HLPSV. This feature is indispensable for seamless and effective hydraulic operations.
(7) Product Series Classification - Embodying the Pinnacle of Excellence:;-2 2 Series; -3 3 Series; -5 5 Series; Each series is meticulously engineered to cater to specific applications, guaranteeing that the product perfectly meets your unique demands, providing unmatched performance and reliability.
(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 intermediate transition block ZPL 5S(V)/H hydraulic control shut-off valve, designed for seamless integration and adaptability.
(9)Directional valve block inflow controller options: Choose from: 1, without inflow controller; 2, a standard inflow controller; 4, an advanced 3-way flow controller for both inlet and outlet, ideal for the N 3/3-way valve; 5, a reinforced inflow controller; 8, pre-selectable options, each ensuring precision and maximum efficiency.
(10) Valve core function symbols: Discover a broad array of core functions: L, M, F, H, J, B, R, O, N, each deliberately crafted to satisfy specific functional requirements, enhancing versatility and performance.
(11) Output flow code for ports A & B: Optimize efficiency with the available maximum output flows: 3, 6, 10, 16, 25, 40, 63, 80, 120, 160, up to 210 L/min, fine-tuned for peak operational performance.
(12) Secondary pressure limitation options: Select between: N, devoid of pressure limiting protection; C, simultaneous pressure limitation of actuator ports A & B; A---B---, independent pressure limitation for ports A & B, all specified in bar, ensuring robust system integrity and safety.
(13) Function ON/OFF and pressure outlet options: Tailor your system with customizable options including: 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 designed to offer precision control and enhanced functionality.
(14) Operation modes: Explore a wide range of operation modes available: A(1,2), manual operation with optional long or short handle; E, electric proportional control; EA(1,2), an integration 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, engineered for comprehensive and efficient control.
(15) Ancillary block port sizes: Choose from versatile options: /2 G3/8; /3 G1/2; /4 G3/4; /5 G1, meticulously crafted for seamless adaptability and optimal performance.
(16) End Plate Options: Discover our custom-tailored end plate choices designed to meet your unique requirements. Choose from E1, the standard option, featuring external discharge of pilot oil and an external oil return control port T for seamless operation. Opt for E2, similar to E1, with an added port Y for enhanced functionality. Or explore E3, equipped with a 2-position, 3-way magnetic ball valve that elevates system pressure to safety valve levels when power is supplied, ensuring peak performance and safety.
E4, akin to E1, offers internal discharge of pilot oil with a sealing port T, perfectly balancing efficiency and reliability. E5 mirrors E2, providing internal discharge, while E6 reflects E3, each variant masterfully engineered to deliver advanced discharge control for sophisticated operations.
(17) Control Voltage & Explosion-Proof Cable Length Options: Choose from our safety-ensured selections like G12-12VDC, expertly crafted to integrate seamlessly with specialized applications, ensuring unmatched safety and compatibility.G24 - A versatile choice for robust operations.-24VDC; G24Ex-3m-24VDC; G12Ex-3m-12VDC; G24MA-3m-24VDC; G - Offering a spectrum of voltages tailored to meet diverse operational needs with precision and efficacy.12 - Ideal for precise voltage requirements.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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