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 - The cornerstone of consistent hydraulic performance, ensuring reliability in demanding applications.;
HLPSV: Variable Displacement Pump - The epitome of adaptability, designed for precision and efficiency in variable operational conditions.;
(2) Connection Block Ports P & R Specifications - Precision engineering at its best::
2-G3/8; Compact design for efficient operations.
3-G1/2; Built for reliability and robust use.;
4-G3/4; Offering advanced connectivity for versatile applications.;
5, 55-G1; Ensures superior flow rate for enhanced performance.;
6-G1 1/4; Delivers unmatched performance in hydraulic systems.;
(3) Additional Components and Specifications - Unleashing new levels of system capabilities::
C,Standard Type - A dependable baseline for consistent operations.;
G,Throttle Valve (For HLPSL only) - Offers precise control for optimal performance.;
H,Fixed Differential Overflow Valve for Enhanced Circulating Pressure (~14 bar, HLPSL) - Manages flow with optimized efficiency.;
(4) Pilot Oil Circuit Pressure Options - Tailored for customizable pressure control:0 - No pressure reducing valve; 1 - Pressure reducing valve (20 bar); 2 - Pressure reducing valve (40 bar); Experience a solution tailored for your needs.
(5) 2/2-way Magnetic Ball Valve for System Unloading - Achieve streamlined efficiency:C - No magnetic ball valve; F - Normally open magnetic ball valve, pressurizes pump when powered, and unloads when unpowered; D - Normally closed magnetic ball valve, unloads when powered, pressurizes when unpowered; D./F. . , With pressure limiting valve for secondary pressure (F50) with a specified pressure value; Incorporates 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); Ensures optimal control over hydraulic pressure.
(7) Product Series Classification - Identifying excellence in innovation and precision:;-2 2 Series; -3 3 Series; -5 5 Series; Each series crafted to meet the diverse needs of your applications with utmost efficiency.
(8)Thread size options for directional spool valve ports A & B, ensuring versatility:2-G3/8; 3-G1/2; 4-G3/4; 5-G1; Perfectly adaptable with ancillary block or intermediate transition block ZPL 5S(V)/H hydraulic control shut-off valve for optimal functionality;
(9)Directional valve block inflow controller options, tailored for precision: 1, standard option without inflow controller; 2, equipped with a standard inflow controller; 4, featuring a 3-way flow controller for comprehensive inlet and outlet management (ideal for N 3/3-way valve); 5, enhanced with a strengthened inflow controller; 8, offering pre-selectable configurations for your specific needs;
(10) Valve core function symbols: L, M, F, H, J, B, R, O, N; Each symbol represents a unique functionality to suit your operational requirements.
(11) Output flow code for ports A & B: Choose from available maximum output flows: 3, 6, 10, 16, 25, 40, 63, 80, 120, 160, 210 (L/min), designed to meet diverse operational demands.
(12) Secondary pressure limitation options: N, providing no pressure limiting protection; C, simultaneous pressure limitation for actuator ports A & B; A---B---, separate pressure limitation for ports A & B, unit (bar); ensuring safety and reliability tailored to your needs.
(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, with electrical ON/OFF on side A; B, with electrical ON/OFF on side B; offering flexible control options.
(14) Operation modes designed for adaptability and precision control: A(1,2), manual operation with long handle (1=without handle, 2=with short handle); E, electric proportional control for precise adjustments; EA(1,2), combining electric proportional control with manual operation (1=without handle, 2=with short handle); D, electric switching value control for efficiency; DA(1,2), integrates electric switching value control with manual handling (1=without handle, 2=with short handle); M, manual friction positioning with long handle; H, pure hydraulic control aligning two pilot oil ports with oil ports A and B; F, pure hydraulic control positioning two pilot oil ports perpendicularly and outwardly to oil ports A and B respectively;
(15) Ancillary block port sizes: Versatile sizing options ensure compatibility: /2 G3/8; /3 G1/2; /4 G3/4; /5 G1; to seamlessly integrate into varied setups.
(16) End plate options for specialized applications: E1, standard end plate with external discharge of pilot oil, connects oil return control port T externally; E2, similar to E1, with an additional port Y for enhanced functionality; E3, external discharge of pilot oil, equipped with a 2-position 3-way magnetic ball valve, ensuring system pressure management to meet safety valve thresholds;
E4, similar to E1, designed for internal discharge of pilot oil, allowing port T to be sealed for operational efficiency; E5, akin to E2, with internal discharge capabilities and sealable port T; E6, resembling E3, featuring internal discharge with sealable port T; providing adaptable solutions for various operational needs.
(17) Control voltage and the length of anti-explosion type cable options: G12-12VDC;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, 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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