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 - Unveil the secrets of efficiency.
HLPSL: Constant Displacement Pump - The cornerstone for relentless performance and stability.;
HLPSV: Variable Displacement Pump - Exemplar of supreme adaptability and flexibility.;
(2) Connection Block Ports P & R Specifications - Precision engineering you can confidently rely on::
2-G3/8; Compact yet a powerhouse of efficiency.
3-G1/2; Synonymous with steadfast reliability and strength.;
4-G3/4; Superior connectivity fueling peak performance.;
5, 55-G1; Facilitates exceptional flow dynamics and fluid control.;
6-G1 1/4; Benchmarking unparalleled performance and dependability.;
(3) Additional Components and Specifications - Revolutionizing system potential with innovative enhancements::
C,Standard Type - Your trusted foundation for diverse applications.;
G,Throttle Valve (For HLPSL only) - Precision control redefined.;
H,Fixed Differential Overflow Valve (~14 bar, HLPSL) - Mastery in optimized flow and pressure management.;
(4) Pilot Oil Circuit Pressure Options - Tailored pressure control for your unique specifications:0 - No pressure reducing valve; 1 - Pressure reducing valve (20 bar); 2 - Pressure reducing valve (40 bar); Precisely engineered for your needs.
(5) 2/2-way Magnetic Ball Valve for System Unloading - Ensuring unmatched efficiency and streamlined operation: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; Pioneer in advanced safety protocols.
(6) Experience unparalleled flexibility with our Tool Adjustable Pressure Limiting Valve, seamlessly integrated within the Connection Block. With precision settings available at 63, 120, 210, 280, 315, 350, and 400 bar, enjoy unmatched pressure control and safety assurance. /NF: No pressure limiting valve (HLPSV only), allowing for ultimate customization.
(7) Product Series Classification - A hallmark of unrivaled excellence:;-2 2 Series; -3 3 Series; -5 5 Series; Expertly tailored to cater to diverse applications, ensuring precise solutions for every need.
(8)Thread size of directional spool valve ports A & B:2-G3/8; 3-G1/2; 4-G3/4; 5-G1; Choose from our A, ancillary block or the innovative intermediate transition block ZPL 5S(V)/H hydraulic control shut-off valve, designed for sophistication and reliability.
(9)Versatile Directional Valve Block Inflow Controller Options: 1, without inflow controller for simplicity; 2, standard inflow controller for balanced performance; 4, 3-way flow controllers for both inlet and outlet suitable for N 3/3-way valve; 5, enhanced inflow controller for robust operations; 8, pre-selectable for tailored control.
(10) Wide Range of Valve Core Function Symbols: L, M, F, H, J, B, R, O, N; crafted for functionality and ease of use.
(11) Output Flow Code for Ports A & B: Offering maximum output flows ranging from 3 to 210 (L/min); precision-engineered for every requirement.
(12) Secondary Pressure Limitation Options: N, no pressure limiting protection for unrestricted flow; C, simultaneous pressure limitation of actuator ports A & B for safety; A---B---, independent pressure limitation of actuator ports A & B, measured in unit (bar); offering comprehensive control solutions.
(13) Advanced Function ON/OFF and Pressure Outlet Options: N, without function ON/OFF and pressure outlet for streamlined design; 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, designed for precision and efficiency.
(14) Dynamic Operation Modes: A(1,2), manual operation with long handle (1=without handle, 2=with short handle) for personalized control; E, electric proportional control for automated precision; EA(1,2), electric proportional control and manual operation (1=without handle, 2=with short handle); D, electric switching value control for enhanced responsiveness; DA(1,2), electric switching value control and manual operation (1=without handle, 2=with short handle); M, manual friction positioning with a long handle for robust handling; H, pure hydraulic control with aligned pilot oil ports; F, pure hydraulic control with perpendicular pilot oil ports for diverse operational needs.
(15) Ancillary Block Port Sizes: /2 G3/8; /3 G1/2; /4 G3/4; /5 G1; meticulously designed to suit varying system requirements.
(16) Versatile End Plate Options: E1, standard end plate with external discharge of pilot oil and external oil return control port T; E2, similar to E1, with an additional port Y; E3, equipped with a 2-position 3-way magnetic ball valve for elevated system pressure to safety valve levels; thoughtfully engineered for performance and adaptability.
E4, similar to E1 with internal discharge of pilot oil, sealing capability for port T; E5, similar to E2 with port sealing options; E6, similar to E3 with internal discharge sealing, crafted for precision and secure operations.
(17) Control Voltage and Anti-Explosion Type Cable Options: G12-12VDC;G24-Our Cutting-Edge Load Sensitive Technology for Hydraulic Can Systems is available in the following voltage configurations: 24VDC, G24Ex-3m-24VDC, G12Ex-3m-12VDC, and G24MA-3m-24VDC. Each variant is meticulously designed to ensure superior performance and reliability.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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