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 - Your key to consistent and unwavering performance excellence.;
HLPSV: Variable Displacement Pump - Experience adaptability at its absolute finest.;
(2) Connection Block Ports P & R Specifications - Precision engineering you can trust and rely on::
2-G3/8; Compact, efficient, and ready for seamless integration.
3-G1/2; Built for reliability and robustness, ensuring stability.;
4-G3/4; Advanced connectivity for superior operational capabilities.;
5, 55-G1; Offers a superior flow rate, enhancing performance.;
6-G1 1/4; Delivers unmatched performance and efficiency.;
(3) Additional Components and Specifications - Elevating system capabilities to new heights::
C,Standard Type - A dependable baseline for consistent operations.;
G,Throttle Valve (For HLPSL only) - Offers precision control for optimal performance.;
H,Fixed Differential Overflow Valve for Enhanced Circulating Pressure (~14 bar, HLPSL) - Optimized flow management for superior efficiency.;
(4) Pilot Oil Circuit Pressure Options - Customizable pressure control tailored to your specific needs:0 - No pressure reducing valve; 1 - Pressure reducing valve (20 bar); 2 - Pressure reducing valve (40 bar); Designed to meet your exact requirements with precision.
(5) 2/2-way Magnetic Ball Valve for System Unloading - Streamlined efficiency and advanced functionality:C - No magnetic ball valve; F - Normally open magnetic ball valve, pressurizes pump when powered, and unloads pump when unpowered; D - Normally closed magnetic ball valve, unloads pump when powered, and pressurizes when unpowered; D./F. . , With pressure limiting valve for secondary pressure (F50) with specified pressure value; Implementing advanced safety measures for secure operations.
(6) Tool Adjustable, Pressure Limiting Valve in Connection Block: Offering settings at 63, 120, 210, 280, 315, 350, 400 bar; /NF: No pressure limiting valve (HLPSV only); Ensuring optimal and secure pressure control for enhanced system integrity.
(7) Product Series Classification - Identifying excellence: Discover unmatched precision and reliability with our expertly crafted series.;-2 2 Series; -3 3 Series; -5 5 Series; Tailored for every application. Our series are designed to meet diverse demands, ensuring optimal performance in every scenario.
(8)Thread size of directional spool valve ports A & B: Engineered for precision, available in sizes for various hydraulic solutions.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; Versatile connectivity for enhanced system integration.
(9)Directional valve block inflow controller options: 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; Customize your control with a range of inflow options to suit every operational need.
(10) Valve core function symbols: L, M, F, H, J, B, R, O, N; Each symbol represents a unique functionality, ensuring precise valve operation.
(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 adaptable flow rates to meet the dynamic requirements of your system.
(12) Secondary pressure limitation options: 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); Precision-engineered for safety, offering flexible pressure management solutions.
(13) Function ON/OFF and pressure outlet options: 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; Seamless integration of control and safety features for enhanced operational efficiency.
(14) Operation modes: 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); Versatile operation modes for precise control and adaptability.
(15) Ancillary block port sizes: /2 G3/8; /3 G1/2; /4 G3/4; /5 G1; Diverse port size options for seamless integration into various hydraulic systems.
(16) End plate options: 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; Customize your hydraulic system with end plate options for tailored performance.
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; Engineered for efficiency, offering internal discharge solutions for enhanced performance.
(17) Control voltage and the length of anti-explosion type cable options: G12-12VDC; Choose the perfect voltage and cable length for reliable and safe operations.G24-24VDC; G24Ex-3m-24VDC; G12Ex-3m-12VDC; G24MA-3m-24VDC; G123d8c99f0
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 for Efficient Mining Equipment Control, 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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