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 - This is the foundation of reliability, delivering consistent and unwavering performance in all conditions.;
HLPSV: Variable Displacement Pump - The pinnacle of adaptability, designed to meet the most demanding operational challenges.;
(2) Connection Block Ports P & R Specifications - Precision engineering at its finest, ensuring trust and dependability::
2-G3/8; A compact design engineered for high efficiency and performance.
3-G1/2; Celebrated for its reliability and robust construction.;
4-G3/4; Offers advanced connectivity to enhance performance significantly.;
5, 55-G1; Ensures exceptional flow rates, optimizing fluid dynamics for peak efficiency.;
6-G1 1/4; Renowned for its unmatched performance and unwavering reliability.;
(3) Additional Components and Specifications - Enhancing system capabilities to unprecedented elevations::
C,Standard Type - A trustworthy and reliable foundation suitable for all applications.;
G,Throttle Valve (For HLPSL only) - Provides unparalleled accuracy and precision control.;
H,Fixed Differential Overflow Valve for Enhanced Circulating Pressure (~14 bar, HLPSL) - Expertly optimized for superior flow management.;
(4) Pilot Oil Circuit Pressure Options - Offering customizable pressure control to suit your specific requirements:0 - No pressure reducing valve; 1 - Pressure reducing valve (20 bar); 2 - Pressure reducing valve (40 bar); Each option is tailored to meet your precise operational demands.
(5) 2/2-way Magnetic Ball Valve for System Unloading - Ensuring streamlined system efficiency and operational effectiveness:C - No magnetic ball valve; F - Normally open magnetic ball valve, pressurizes pump when powered, unloads when unpowered; D - Normally closed magnetic ball valve, unloads when powered, pressurizes when unpowered; D./F. . , Featuring a pressure limiting valve for secondary pressure (F50) with specified pressure value; Innovatively pioneering advanced safety measures.
(6) Tool Adjustable, Pressure Limiting Valve in Connection Block: Immerse yourself in precision with settings ranging from 63 to an impressive 400 bar. For HLPSV only, choose the NF option, indicating no pressure limiting valve. Achieve unparalleled pressure control and safety with this adaptable feature.
(7) Product Series Classification - A testament to excellence:;-2 2 Series; -3 3 Series; -5 5 Series; Each series meticulously designed to meet diverse application needs.
(8)Thread size of directional spool valve ports A & B, offering:2-G3/8; 3-G1/2; 4-G3/4; 5-G1; A, explore ancillary block or intermediate transition block ZPL 5S(V)/H for enhanced hydraulic control shut-off valve functionalities;
(9)Directional valve block inflow controller options: Choose from 1, the flexibility of no inflow controller; 2, the reliability of a standard inflow controller; 4, the sophistication of 3-way flow controllers for inlet and outlet, perfect for N 3/3-way valve setups; 5, the robust strength of a reinforced inflow controller; or 8, the versatility of pre-selection.
(10) Valve core function symbols: Explore the diversity in functionality with options like L, M, F, H, J, B, R, O, N;
(11) Output flow code for ports A & B: Opt for maximum output flows ranging from a precise 3 L/min to an expansive 210 L/min, ensuring tailored performance and adaptability.
(12) Secondary pressure limitation options: N, for no pressure limiting protection; C, for simultaneous pressure limiting at actuator ports A & B; or A---B---, where you can independently control the pressure at each actuator port, measured in bar.
(13) Function ON/OFF and pressure outlet options: Opt for N, without integrated function ON/OFF and pressure outlet; X, explore C type pressure limitation; S/S1, discover AB type pressure limitation; or choose A/B for electrical ON/OFF capabilities on side A or B respectively.
(14) Operation modes: A(1,2), for manual operation with options of long or short handle (1=without handle, 2=with short handle); E, electric proportional control; EA(1,2), combines electric proportional control with manual operation; D, electric switching value control; DA(1,2), merges electric switching value control with manual operation; M, manual friction positioning with long handle; H, pure hydraulic control aligning with oil ports A and B; F, pure hydraulic control with perpendicular pilot oil ports.
(15) Ancillary block port sizes: Custom-fit your needs with sizes /2 G3/8; /3 G1/2; /4 G3/4; /5 G1;
(16) End plate options: E1, standard end plate with external pilot oil discharge and controlled external oil return via port T; E2, similar to E1, also attaches port Y for additional flexibility; E3, integrates a 2-position 3-way magnetic ball valve, ensuring system pressure aligns with safety valve pressure in power scenarios;
E4, internal discharge of pilot oil similar to E1, with a sealable port T; E5, internal discharge akin to E2, where port T can be sealed; E6, follows the E3 model with internal oil discharge and sealable port T, optimizing control options;
(17) Control voltage and length of anti-explosion type cable options: Choose G12 for 12VDC efficacy;G24-Encompassing a range of versatile and highly efficient models, including the 24VDC, G24Ex-3m-24VDC, G12Ex-3m-12VDC, G24MA-3m-24VDC, and G, our products ensure adaptability and robust performance in diverse industrial environments.12bb621436
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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