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 - The cornerstone for seamless system integration.
HLPSL: Constant Displacement Pump - Your gateway to unwavering and dependable performance.;
HLPSV: Variable Displacement Pump - Unparalleled adaptability, offering the pinnacle of flexibility.;
(2) Connection Block Ports P & R Specifications - Precision and reliability you can trust::
2-G3/8; Compact and efficient for streamlined operations, ensuring optimal performance.
3-G1/2; Robust, dependable, and engineered for endurance.;
4-G3/4; Advanced connectivity designed for superior control and precision.;
5, 55-G1; Providing a superior flow rate, ideal for high-demand applications.;
6-G1 1/4; Delivering unmatched performance with remarkable efficiency.;
(3) Additional Components and Specifications - Elevating system capabilities to new heights::
C,Standard Type - A dependable baseline for your needs, ensuring reliability.;
G,Throttle Valve (For HLPSL only) - Ensuring precision control with utmost accuracy.;
H,Fixed Differential Overflow Valve for Enhanced Circulating Pressure (~14 bar, HLPSL) - Specialized flow management to boost performance.;
(4) Pilot Oil Circuit Pressure Options - Customizable pressure control for diverse applications:0 - No pressure reducing valve; 1 - Pressure reducing valve (20 bar); 2 - Pressure reducing valve (40 bar); Tailored solutions meticulously crafted for your specific needs.
(5) 2/2-way Magnetic Ball Valve for System Unloading - Streamlined efficiency and control at your fingertips: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 for secure and reliable operations.
(6) Tool Adjustable, Pressure Limiting Valve in Connection Block: Experience unparalleled adaptability with adjustable settings available at 63, 120, 210, 280, 315, 350, and 400 bar. Choose /NF for no pressure limiting valve (HLPSV only), ensuring tailored and precise pressure control to meet the demands of diverse scenarios.
(7) Product Series Classification - Unveiling a new standard of excellence:;-2 2 Series; -3 3 Series; -5 5 Series; Meticulously crafted to suit every application with precision.
(8)Thread size of directional spool valve ports A & B: Customizable options to fit your needs: 2-G3/8; 3-G1/2; 4-G3/4; 5-G1; Enhance your system with an ancillary block or intermediate transition block ZPL 5S(V)/H hydraulic control shut-off valve;
(9)Directional valve block inflow controller options: Choose the perfect inflow control solution: 1, without inflow controller; 2, standard inflow controller; 4, optimal 3-way flow controllers for both inlet and outlet (ideal for N 3/3-way valve); 5, enhanced inflow controller; 8, pre-selectable features for customized control;
(10) Valve core function symbols: Versatile options include L, M, F, H, J, B, R, O, N;
(11) Output flow code for ports A & B: Achieve superior performance with available maximum output flows: 3, 6, 10, 16, 25, 40, 63, 80, 120, 160, 210 (L/min);
(12) Secondary pressure limitation options: N, no pressure limiting protection; C, simultaneous limitation of actuator ports A & B; A---B---, separate pressure limitation for actuator ports A & B, with precise bar unit control;
(13) Function ON/OFF and pressure outlet options: N, without function ON/OFF and pressure outlet; Choose X C type for pressure limitation; S/S1 AB type for specialized pressure limitation; A, electrical ON/OFF on side A; B, electrical ON/OFF on side B;
(14) Operation modes: Diverse operation modes to suit every need: A(1,2), manual operation with long handle (1=without handle, 2=with short handle); E, sophisticated electric proportional control; EA(1,2), combines electric proportional control and manual operation (1=without handle, 2=with short handle); D, electric switching value control; DA(1,2), integrates 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: Carefully tailored to fit your requirements: /2 G3/8; /3 G1/2; /4 G3/4; /5 G1;
(16) End plate options: E1, standard end plate, external discharge of pilot oil, offering connecting oil return control port T externally; E2, similar to E1, with external discharge of pilot oil, additional port Y attached; E3, features external discharge of pilot oil, a 2-position 3-way magnetic ball valve mounted; when powered, the system pressure elevates to the safety valve pressure;
E4, similar to E1, with internal discharge of pilot oil, option to seal port T; E5, akin to E2, includes internal discharge of pilot oil, port T can be sealed; E6, mirrors E3, with internal discharge of pilot oil, port T can be sealed;
(17) Control Voltage and Exquisite Anti-Explosion Type Cable Options: G12-12VDC;G24 - An Ingenious Choice for Enhanced Security and Stability.- Seamlessly Integrate Power with Precision and Safety.24VDC; G24Ex-3m-24VDC; G12Ex-3m-12VDC; G24MA-3m-24VDC; G - Tailor-made for Unmatched Performance and Reliability.12 - A Versatile Solution for Diverse Application Needs.bb621436 - Your Gateway to Robust and Reliable Hydraulic Control.
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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