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, promising unmatched performance and reliability. Typically composed of the essential trio of connecting blocks, directional valves, and end plates, these valves are meticulously crafted for integration into premium hydraulic systems, pivotal in cutting-edge engineering machinery. They expertly govern the directional movement and speed of hydraulic cylinders, motors, and various other actuators, ensuring unparalleled 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 concurrently 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 under challenging conditions. In contrast, 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 of utmost importance. With their cutting-edge engineering and energy-efficient design, HLPSV valves emerge as the premier solution for advanced hydraulic control requirements, setting new standards in the field.
| 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 - Key for consistent performance.;
HLPSV: Variable Displacement Pump - Adaptability at its finest.;
(2) Connection Block Ports P & R Specifications - Precision you can trust::
2-G3/8; Compact and efficient.
3-G1/2; Reliable and robust.;
4-G3/4; Advanced connectivity.;
5, 55-G1; Superior flow rate.;
6-G1 1/4; Unmatched performance.;
(3) Additional Components and Specifications - Enhancing system capabilities::
C,Standard Type - Dependable baseline.;
G,Throttle Valve (For HLPSL only) - Precision control.;
H,Fixed Differential Overflow Valve for Enhanced Circulating Pressure (~14 bar, HLPSL) - Optimized flow management.;
(4) Pilot Oil Circuit Pressure Options - Customizable pressure control:0 - No pressure reducing valve; 1 - Pressure reducing valve (20 bar); 2 - Pressure reducing valve (40 bar); Tailored for your needs.
(5) 2/2-way Magnetic Ball Valve for System Unloading - Streamlined efficiency:C - No magnetic ball valve; F - Normally open magnetic ball valve, pressurizes pump when powered, unloads pump when unpowered; D - Normally closed magnetic ball valve, unloads pump when powered, pressurizes when unpowered; D./F. . , With pressure limiting valve for secondary pressure (F50) with specified pressure value; Advanced safety measures.
(6) Tool Adjustable, Pressure Limiting Valve in Connection Block: Settings available at 63, 120, 210, 280, 315, 350, 400 bar; /NF: No pressure limiting valve (HLPSV only); Ensuring optimal pressure control.
(7) Product Series Classification - Identifying excellence and quality distinction:;-2 2 Series; -3 3 Series; -5 5 Series; Meticulously engineered to meet diverse needs and applications.
(8)Thread size of directional spool valve ports A & B: Ensuring compatibility and precision:2-G3/8; 3-G1/2; 4-G3/4; 5-G1; A, ancillary block or intermediate transition block ZPL 5S(V)/H hydraulic control shut-off valve; Offering reliability and seamless integration;
(9)Directional valve block inflow controller options: Tailor-made precision for every scenario: 1, without inflow controller; 2, standard inflow controller; 4, 3-way flow controllers for both inlet and outlet (ideal for N 3/3-way valve); 5, strengthened inflow controller; 8, pre-selectable;
(10) Valve core function symbols: Versatile and meticulous design choices: L, M, F, H, J, B, R, O, N;
(11) Output flow code for ports A & B: Available maximum output flows: 3, 6, 10, 16, 25, 40, 63, 80, 120, 160, 210 (L/min); Delivering optimal performance and efficiency;
(12) Secondary pressure limitation options: Comprehensive protection and adaptability: N, no pressure limiting protection; C, limit the pressure of actuator ports A & B simultaneously; A---B---, limit the pressure of actuator ports A & B separately, unit (bar);
(13) Function ON/OFF and pressure outlet options: Tailored functionality for enhanced control: N, without function ON/OFF and 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;
(14) Operation modes: Versatile and adaptive operation strategies: A(1,2), manual operation with long handle (1=without handle, 2=with short handle); E, electric proportional control; EA(1,2), electric proportional control and manual operation (1=without handle, 2=with short handle); D, electric switching value control; DA(1,2), electric switching value control and manual operation (1=without handle, 2=with short handle); M, manual friction positioning with long handle; H, pure hydraulic control (two pilot oil ports align with oil ports A and B); F, pure hydraulic control (two pilot oil ports are perpendicular to oil ports A and B and outward respectively);
(15) Ancillary block port sizes: Ensuring fit and functionality: /2 G3/8; /3 G1/2; /4 G3/4; /5 G1;
(16) End plate options: Engineered precision for enhanced performance: E1, standard end plate, external discharge of pilot oil, connecting oil return control port T externally; E2, similar to E1, external discharge of pilot oil, port Y is additionally attached; E3, external discharge of pilot oil, a 2-position 3-way magnetic ball valve is mounted; in power supply scenarios, the system pressure rises to the safety valve pressure;
E4, similar to E1, internal discharge of pilot oil, port T can be sealed; E5, similar to E2, internal discharge of pilot oil, port T can be sealed; E6, similar to E3, internal discharge of pilot oil, port T can be sealed; Offering options for tailored system integration;
(17) Control voltage and the length of anti-explosion type cable options: Ensuring safety and reliability: G12-12VDC;G24-24VDC; G24Ex-3m-24VDC; G12Ex-3m-12VDC; G24MA-3m-24VDC; G12c988f4e9
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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