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 cornerstone of consistent and unfailing operation.;
HLPSV: Variable Displacement Pump - The epitome of adaptability and flexibility.;
(2) Connection Block Ports P & R Specifications - Precision engineering and reliability you can depend on::
2-G3/8; Efficiently compact for seamless operations.
3-G1/2; Sturdy and trustworthy.;
4-G3/4; Sophisticated connectivity for superior control.;
5, 55-G1; Designed for a superior flow rate, ideal for high-demand scenarios.;
6-G1 1/4; Unrivaled performance delivery in the field.;
(3) Additional Components and Specifications - Enhancing system capabilities to new heights::
C,Standard Type - A reliable baseline to meet your requirements.;
G,Throttle Valve (For HLPSL only) - Ensuring precise control.;
H,Fixed Differential Overflow Valve for Enhanced Circulating Pressure (~14 bar, HLPSL) - Optimized flow management for peak performance.;
(4) Pilot Oil Circuit Pressure Options - Tailored pressure control for diverse applications:0 - No pressure reducing valve; 1 - Pressure reducing valve (20 bar); 2 - Pressure reducing valve (40 bar); Custom solutions crafted for your unique requirements.
(5) 2/2-way Magnetic Ball Valve for System Unloading - Streamlined for efficiency and control:C - No magnetic ball valve; F - Normally open magnetic ball valve, pressurizes pump on power, unloads pump when unpowered; D - Normally closed magnetic ball valve, unloads pump on power, pressurizes when unpowered;D/F - Equipped with a pressure limiting valve for secondary pressure (F50) with specified pressure value; Advanced safety features for secure operations.
(6) Tool Adjustable, Pressure Limiting Valve in Connection Block: Unlock a world of precision with adjustable settings ranging from 63 to 400 bar. Choose the perfect pressure control tailored for your specific needs. /NF: No pressure limiting valve (HLPSV only); ensuring unparalleled pressure management for diverse applications.
(7) Product Series Classification - Identifying excellence: Discover our distinguished series:;-2 2 Series; -3 3 Series; -5 5 Series; Each series meticulously crafted to cater to your specific needs.
(8)Thread size of directional spool valve ports A & B: Choose from a range of sizes for perfect fit and function:2-G3/8; 3-G1/2; 4-G3/4; 5-G1; Achieve optimal connection with A, ancillary block, or intermediate transition block ZPL 5S(V)/H hydraulic control shut-off valve.
(9)Directional valve block inflow controller options: Embrace versatility with inflow control choices tailored for your needs: 1, without inflow controller; 2, standard inflow controller; 4, 3-way flow controllers for dynamic inlet and outlet control, ideal for N 3/3-way valve; 5, reinforced inflow controller; 8, pre-selectable for ultimate control.
(10) Valve core function symbols: Explore functional diversity with options like L, M, F, H, J, B, R, O, N.
(11) Output flow code for ports A & B: Experience a range of maximum output flows, from a precise 3 L/min up to a robust 210 L/min, ensuring your system's peak performance.
(12) Secondary pressure limitation options: Customize pressure protection with options: N, no pressure limiting; C, simultaneous limitation on actuator ports A & B; A---B---, separate limitation on actuator ports A & B, unit (bar).
(13) Function ON/OFF and pressure outlet options: Tailor your system with nuanced options: N, without function ON/OFF and pressure outlet; X C type pressure limitation; S/S1 AB type pressure limitation; A, electrical ON/OFF at side A; B, electrical ON/OFF at side B.
(14) Operation modes: Diverse modes for unrivaled control: A(1,2), manual with long or short handle; E, electric proportional control; EA(1,2), combined electric and manual control; D, electric switching value control; DA(1,2), combined switching and manual operation; M, manual friction positioning; H, pure hydraulic with aligned pilot oil ports; F, pure hydraulic with perpendicular pilot oil ports.
(15) Ancillary block port sizes: Choose from precision sizes: /2 G3/8; /3 G1/2; /4 G3/4; /5 G1, for seamless integration.
(16) End plate options: Explore end plate configurations that enhance performance: E1, standard with external pilot oil discharge; E2, similar with additional port Y; E3, featuring a 2-position 3-way magnetic ball valve for safety; E4, similar to E1 with internal discharge; E5 and E6 options for sealed port T scenarios.
(17) Control Voltage Options with Anti-Explosion Cable Length: Choose from G12 with 12VDC for optimized energy efficiency;G24 for robust performance and durability,or select from a variety of configurations;including 24VDC, G24Ex-3m-24VDC, G12Ex-3m-12VDC, G24MA-3m-24VDC, designed to meet diverse operational requirements;G12 offering reliable solutions for complex environments,bb621436
Since our inception in 2009, Jiangsu KM Hydraulic Control System Co., Ltd. has been a shining beacon in the hydraulic industry, renowned for groundbreaking innovation and unmatched excellence. As a prestigious subsidiary of the esteemed China Baoan Group (stock code: 000009), we are proud to be recognized as a distinguished national high-tech enterprise. We specialize in the meticulous research, development, manufacturing, and sales of premium hydraulic components. Our esteemed status as a national 'specialized, refined, and innovative' small giant enterprise highlights our unwavering commitment to technological advancement and superior quality, positioning us as leaders at the forefront of our field.
Our flagship product, the load-sensitive proportional valve, epitomizes the pinnacle of sophisticated hydraulic system control. Expertly crafted for construction machinery and heavy-duty equipment, this versatile component is essential for high-stakes applications such as emergency rescue operations, tunnel engineering, mining, and municipal service vehicles. We take immense pride in our strategic alliances with numerous leading domestic manufacturers, playing a pivotal role in localizing core hydraulic components for high-end mechanical equipment. Anchored by our core philosophy-'serving customers with technology, impressing customers with our attitude, and retaining customers with quality'-we are resolute in delivering exceptional products, services, and solutions. Our mission is to ascend as a globally trusted supplier of premier hydraulic components, setting new standards of excellence on the world stage.
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