Introducing our groundbreaking HLPSL and HLPSV load-sensitive proportional multi-way directional spool valves, a pinnacle of engineering innovation. These remarkable components elegantly combine pressure, flow, and directional management into a singular, cohesive unit, ensuring unparalleled performance and dependability. Constructed with three primary functional modules - connecting blocks, directional valves, and end plates - these valves are meticulously designed for integration into high-performance hydraulic systems, essential for elite engineering machinery. They expertly regulate the movement direction and speed of hydraulic cylinders, motors, and other actuators, offering precise and exceptional control. Key features include a compact architecture, outstanding energy efficiency, and the ability for stepless speed control. Additionally, these valves enable the simultaneous operation of multiple actuators under varying loads, providing unmatched performance and versatility across a wide range of applications.
The HLPSL valves are meticulously crafted for constant displacement pump systems, providing unwavering and dependable operation. On the other hand, the HLPSV valves are ingeniously designed for variable pump systems. While HLPSV valves may show a slightly more gradual response time, they excel in delivering remarkable energy-saving performance, making them the ideal choice for applications where efficiency is of utmost importance. With their state-of-the-art engineering and energy-efficient design, HLPSV valves stand out as the leading solution for sophisticated hydraulic control needs.
| 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 - This foundational component ensures consistent and unwavering operational efficiency.;
HLPSV: Variable Displacement Pump - Epitomizing the pinnacle of adaptability and versatility.;
(2) Connection Block Ports P & R Specifications - The ultimate in precision and trust::
2-G3/8; A marvel of compact design, delivering high efficiency.
3-G1/2; Celebrated for its remarkable reliability and robustness.;
4-G3/4; Facilitating advanced connectivity for superior performance.;
5, 55-G1; Guarantees an exceptional flow rate for optimal fluid dynamics.;
6-G1 1/4; Offers unmatched performance and reliability.;
(3) Additional Components and Specifications - Taking system capabilities to unparalleled heights::
C,Standard Type - A reliable and trustworthy choice for all applications.;
G,Throttle Valve (For HLPSL only) - Provides unrivaled precision control.;
H,Fixed Differential Overflow Valve for Enhanced Circulating Pressure (~14 bar, HLPSL) - Expertly optimized for superior flow management.;
(4) Pilot Oil Circuit Pressure Options - Tailored customization for your specific pressure needs:0 - No pressure reducing valve; 1 - Pressure reducing valve (20 bar); 2 - Pressure reducing valve (40 bar); Precisely calibrated to meet your precise standards.
(5) 2/2-way Magnetic Ball Valve for System Unloading - Ensuring efficient and streamlined operational effectiveness: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. . , Featuring a pressure limiting valve for secondary pressures (F50) with specified pressure value; Leading the way in advanced safety measures.
(6) Tool Adjustable Pressure Limiting Valve in Connection Block: Adapt your control with settings from 63 to 400 bar including 63, 120, 210, 280, 315, 350, and 400 bar. Choose /NF for operations without a pressure limiting valve (HLPSV only) and ensure robust pressure control and enhanced safety.
(7) Product Series Classification - Where excellence meets versatility:;-2 2 Series; -3 3 Series; -5 5 Series; Crafted for precise alignment with diverse applications.
(8)Thread Size of Directional Spool Valve Ports A & B:2-G3/8; 3-G1/2; 4-G3/4; 5-G1; Accommodate with ancillary block or intermediate transition block ZPL 5S(V)/H, integrating hydraulic control shut-off valve;
(9)Directional Valve Block Inflow Controller Choices: 1, without inflow controller; 2, standard inflow controller; 4, 3-way flow controllers for both inlet and outlet-perfect for N 3/3-way valve; 5, enhanced inflow controller; 8, pre-selectable;
(10) Valve Core Function Symbols: L, M, F, H, J, B, R, O, N;
(11) Output Flow Code for Ports A & B: Offered in maximum output flows of 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 pressure limitation for actuator ports A & B; A---B---, separate pressure limitation for actuator ports A & B, unit (bar);
(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;
(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 plus manual operation (1=without handle, 2=with short handle); D, electric switching value control; DA(1,2), electric switching value control plus 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: /2 G3/8; /3 G1/2; /4 G3/4; /5 G1;
(16) End Plate Options: E1, standard end plate with external discharge of pilot oil, connects oil return control port T externally; E2, similar to E1, with external discharge of pilot oil and additional port Y; E3, includes external discharge of pilot oil with an additional 2-position 3-way magnetic ball valve; in power supply scenarios, the system pressure elevates to the safety valve pressure;
E4, similar to E1, with internal discharge of pilot oil, port T can be sealed; E5, similar to E2, with internal discharge of pilot oil, port T can be sealed; E6, similar to E3, with internal discharge of pilot oil, port T can be sealed;
(17) Control Voltage Options and Anti-Explosion Cable Lengths: Experience unparalleled flexibility with our selection of control voltage and anti-explosion type cable options. Choose from G12-12VDC for compact applications;G24-24VDC; or opt for G24Ex-3m-24VDC and G12Ex-3m-12VDC for added safety in hazardous environments. For those needing extended reach, select G24MA-3m-24VDC; G12bb621436
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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