Introducing the revolutionary HLPSL and HLPSV load-sensitive proportional multi-way directional spool valves-an unparalleled advancement in hydraulic engineering. These marvels of precision seamlessly combine pressure, flow, and directional control into a single, harmonious system, ensuring exceptional performance and reliability. Composed of three vital functional modules-connecting blocks, directional valves, and end plates-these valves are intricately designed for integration into high-end hydraulic systems, essential for top-tier engineering machinery. They expertly manage the movement direction and speed of hydraulic cylinders, motors, and other actuators, offering unmatched precision and control. Key features include a compact design, superior energy efficiency, and the ability for stepless speed control. Moreover, they empower multiple actuators to function simultaneously under varying loads, delivering unrivaled performance and versatility for any application.
The HLPSL valves are meticulously tailored for constant displacement pump systems, ensuring steadfast and reliable operation. In contrast, the HLPSV valves are intricately engineered for variable pump systems. Despite a slightly slower response time, HLPSV valves excel in providing remarkable energy-saving performance, making them the optimal choice for applications where efficiency is of utmost importance. With their advanced engineering and energy-efficient design, HLPSV valves stand out 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
HLPSL: Constant Displacement Pump - Your guarantee for consistent and reliable performance.;
HLPSV: Variable Displacement Pump - Excellence in adaptability and performance.;
(2) Connection Block Ports P & R Specifications - Where precision meets trustworthiness::
2-G3/8; Ensuring compact design and heightened efficiency.
3-G1/2; Combining reliability with robust construction.;
4-G3/4; Offering advanced and seamless connectivity.;
5, 55-G1; Providing superior flow rate for enhanced operations.;
6-G1 1/4; Delivering unmatched performance and reliability.;
(3) Additional Components and Specifications - Elevate your system's capabilities::
C,Standard Type - Providing a dependable and solid baseline for your system.;
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 efficiently.;
(4) Pilot Oil Circuit Pressure Options - Customizable solutions for your pressure control needs:0 - No pressure reducing valve; 1 - Pressure reducing valve (20 bar); 2 - Pressure reducing valve (40 bar); Perfectly tailored to your needs and requirements.
(5) 2/2-way Magnetic Ball Valve for System Unloading - Streamlining efficiency effortlessly:C - No magnetic ball valve; F - Normally open magnetic ball valve, activates pump pressurization when powered, and unloading when unpowered; D - Normally closed magnetic ball valve, ensures pump unloading when powered, and pressurizes when unpowered; D./F. . , Integrated with pressure limiting valve for secondary pressure (F50) with specified pressure value; Ensures advanced safety measures and operations.
(6) Tool Adjustable, Pressure Limiting Valve in Connection Block: Configurable settings available at 63, 120, 210, 280, 315, 350, 400 bar; /NF: Without pressure limiting valve (HLPSV only); Guarantees optimal pressure control tailored to your specifications.
(7) Product Series Classification - Identifying Excellence in Hydraulic Solutions:;-2 2 Series; -3 3 Series; -5 5 Series; Tailored for every unique application, ensuring precision and performance.
(8)Thread Size of Directional Spool Valve Ports A & B - Versatility at Its Best:2-G3/8; 3-G1/2; 4-G3/4; 5-G1; A, with ancillary block or intermediate transition block ZPL 5S(V)/H for hydraulic control shut-off valve;
(9)Directional Valve Block Inflow Controller Options - Customizable to Your Needs: 1, Without Inflow Controller; 2, Standard Inflow Controller for Optimal Performance; 4, 3-Way Flow Controllers for Both Inlet and Outlet (Ideal for N 3/3-Way Valve); 5, Strengthened Inflow Controller; 8, Pre-Selectable for Flexible Operations;
(10) Valve Core Function Symbols - A Spectrum of Choices: L, M, F, H, J, B, R, O, N;
(11) Output Flow Code for Ports A & B - Maximizing Efficiency: Available Maximum Output Flows: 3, 6, 10, 16, 25, 40, 63, 80, 120, 160, 210 (L/min);
(12) Secondary Pressure Limitation Options - Safeguarding Your System: 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 - Designed for 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 - Meeting Diverse Operational Demands: 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 - Precision-Driven Configurations: /2 G3/8; /3 G1/2; /4 G3/4; /5 G1;
(16) End Plate Options - Tailored for Efficiency: 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 - Safety Assured: G12-12VDC;G24-24VDC; G24Ex-3m-24VDC; G12Ex-3m-12VDC; G24MA-3m-24VDC; G123d54a8c9
Since our inception in 2009, Jiangsu KM Hydraulic Control System Co., Ltd. has been a beacon of innovation and excellence within the hydraulic industry. As a prestigious subsidiary of the esteemed China Baoan Group (stock code: 000009), we are proud to be recognized as a distinguished national high-tech enterprise. Our core capabilities encompass the meticulous research, development, manufacturing, and sales of premium hydraulic components. We stand out as a national 'specialized, refined, and innovative' small giant enterprise, which highlights our unyielding dedication to technological advancement and superior quality. This steadfast commitment positions us as leaders in our field.
Our flagship offering, the Load Sensitive Technology: Proportional Valve for Hydraulic Efficiency, represents the zenith of advanced hydraulic system control. Expertly engineered for construction machinery and heavy-duty equipment, this versatile component is indispensable for high-stakes applications such as emergency rescue operations, tunnel engineering, mining, and municipal service vehicles. We take immense pride in our strategic partnerships with numerous leading domestic manufacturers, playing a pivotal role in localizing core hydraulic components for high-end mechanical equipment. Driven by our core philosophy-'serving customers with technology, impressing customers with our attitude, and retaining customers with quality'-we are unwavering in our commitment to delivering exceptional products, services, and solutions. Our mission is to emerge as a globally trusted supplier of premier hydraulic components, setting new benchmarks of excellence worldwide.
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