Introducing our groundbreaking HLPSL and HLPSV load-sensitive proportional multi-way directional spool valves, the epitome of innovative engineering excellence. These extraordinary valves seamlessly amalgamate pressure, flow, and directional control within a unified, harmonious entity, ensuring unmatched performance and unparalleled reliability. Comprising three indispensable functional modules - connecting blocks, directional valves, and end plates - these meticulously crafted valves are designed for integration into elite hydraulic systems, essential for top-tier engineering machinery. They expertly dictate the movement direction and velocity of hydraulic cylinders, motors, and other actuators, offering precision and control beyond compare. Key highlights include a compact structure, superior energy efficiency, and the capability for stepless speed control. Moreover, these valves facilitate the simultaneous operation of multiple actuators under varying loads, delivering unrivaled performance and adaptability 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 are exceptional in delivering remarkable energy-saving performance, making them the ultimate choice for applications where efficiency is paramount. With their advanced engineering and energy-efficient design, HLPSV valves emerge as the premier solution for sophisticated 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 - Unlocking Performance Excellence
HLPSL: Constant Displacement Pump - The cornerstone for consistent performance reliability.;
HLPSV: Variable Displacement Pump - Embrace adaptability at its peak.;
(2) Connection Block Ports P & R Specifications - Precision you can confidently rely on::
2-G3/8; Compact design with efficient operation.
3-G1/2; Dependable, robust, and reliable.;
4-G3/4; Ensures advanced connectivity.;
5, 55-G1; Provides superior flow rate capabilities.;
6-G1 1/4; Offers unmatched performance levels.;
(3) Additional Components and Specifications - Boosting system capabilities::
C,Standard Type - A dependable baseline for every application.;
G,Throttle Valve (For HLPSL only) - Ensures precision control for optimal performance.;
H,Fixed Differential Overflow Valve for Enhanced Circulating Pressure (~14 bar, HLPSL) - Optimizes flow management for peak efficiency.;
(4) Pilot Oil Circuit Pressure Options - Tailor your pressure control experience:0 - No pressure reducing valve; 1 - Pressure reducing valve (20 bar); 2 - Pressure reducing valve (40 bar); Customization tailored for your specific needs.
(5) 2/2-way Magnetic Ball Valve for System Unloading - Streamline your efficiency with advanced options:C - No magnetic ball valve; F - Normally open magnetic ball valve, activates pump pressurization when powered, allows unloading when unpowered; D - Normally closed magnetic ball valve, facilitates unloading when powered, pressurizes as unpowered; D./F. . , Incorporates pressure limiting valve for secondary pressure control (F50) with specified pressure value; Prioritize advanced safety measures.
(6) Tool Adjustable, Pressure Limiting Valve in Connection Block: Select from settings available at 63, 120, 210, 280, 315, 350, 400 bar; /NF: No pressure limiting valve (HLPSV only); Ensure optimal pressure control with precision.
(7) Product Series Classification - Identifying excellence beyond the ordinary:;-2 2 Series; -3 3 Series; -5 5 Series; Meticulously tailored for every unique application, ensuring unparalleled performance.
(8)Thread size of directional spool valve ports A & B: Crafted to precision for unmatched adaptability:2-G3/8; 3-G1/2; 4-G3/4; 5-G1; Featuring an ancillary block or an intermediate transition block ZPL 5S(V)/H hydraulic control shut-off valve, engineered for optimal functionality.
(9)Directional valve block inflow controller options: A spectrum of choices to meet your specific requirements: 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: Diverse options tailored to your operational needs: L, M, F, H, J, B, R, O, N;
(11) Output flow code for ports A & B: Available in a range of maximum output flows to suit your specific requirements: 3, 6, 10, 16, 25, 40, 63, 80, 120, 160, 210 (L/min);
(12) Secondary pressure limitation options: Choose the level of protection that meets your system's demands: 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: Customize your control with precision: 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: Experience a variety of operation modes designed for efficiency and control: 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: A comprehensive selection for optimal connectivity: /2 G3/8; /3 G1/2; /4 G3/4; /5 G1;
(16) End plate options: Versatility in end plate configurations for enhanced system integration: 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;
(17) Control voltage and the length of anti-explosion type cable options: Engineered for safety with precise control voltage 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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