Introducing our pioneering HLPSL and HLPSV load-sensitive proportional multi-way directional spool valves, a true innovation in hydraulic control. These extraordinary engineering feats are designed to seamlessly integrate pressure, flow, and directional control into one cohesive and harmonious unit, ensuring an unmatched level of performance and reliability. Typically comprised of three essential functional modules: connecting blocks, directional valves, and end plates, these valves are painstakingly engineered for integration into elite hydraulic systems, crucial in top-tier engineering machinery. They meticulously regulate the movement direction and speed of hydraulic cylinders, motors, and other actuators, offering unparalleled precision and control. Key features include a compact structure, outstanding energy efficiency, and the ability for stepless speed control. Moreover, they empower multiple actuators to operate simultaneously under varying loads, delivering unmatched performance and versatility for any application.
The HLPSL valves are meticulously crafted for constant displacement pump systems, ensuring steadfast and reliable operation. In contrast, the HLPSV valves are masterfully engineered for variable pump systems. Despite a slightly slower response time, HLPSV valves excel in delivering exceptional energy-saving performance, making them the ultimate choice for applications where efficiency is of utmost importance. With their cutting-edge engineering and energy-efficient design, HLPSV valves emerge as the premier solution for advanced 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 - A cornerstone for consistent and unwavering performance. Propel your operations with stability and reliability at every turn.;
HLPSV: Variable Displacement Pump - Embodying adaptability at its pinnacle. Experience unparalleled flexibility and efficiency tailored to dynamic demands.;
(2) Connection Block Ports P & R Specifications - The epitome of precision you can trust::
2-G3/8; Compact in design, yet highly efficient. A perfect balance of size and power for excellence.
3-G1/2; Renowned for reliability and robustness. Delivering strength and endurance you can count on.;
4-G3/4; Advanced connectivity for superior performance. Elevating your systems to peak operational prowess.;
5, 55-G1; Exceptional flow rate ensuring optimal fluid dynamics. Perfect for maximizing your system's potential.;
6-G1 1/4; Unmatched in performance and reliability. The ultimate in operational excellence.;
(3) Additional Components and Specifications - Elevating system capabilities to new heights::
C,Standard Type - A dependable baseline for all applications. The go-to choice for seamless integration.;
G,Throttle Valve (For HLPSL only) - Offers unparalleled precision control. Fine-tune your system with exacting standards.;
H,Fixed Differential Overflow Valve for Enhanced Circulating Pressure (~14 bar, HLPSL) - Masterfully optimized flow management. Ensure smooth and controlled operations.;
(4) Pilot Oil Circuit Pressure Options - Customizable pressure control tailored to your specific needs:0 - No pressure reducing valve; 1 - Pressure reducing valve (20 bar); 2 - Pressure reducing valve (40 bar); Tailored for your precise requirements. Personalize your system with choice-driven precision.
(5) 2/2-way Magnetic Ball Valve for System Unloading - Ensuring streamlined efficiency and 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. . , With pressure limiting valve for secondary pressure (F50) with specified pressure value; Pioneering advanced safety measures. Leading the way in system protection and efficiency.
(6) Discover the epitome of precision with our Tool Adjustable, Pressure Limiting Valve embedded within a Connection Block. Experience versatile settings at your fingertips: 63, 120, 210, 280, 315, 350, and 400 bar. For those requiring it, we offer an /NF option without pressure limiting valve (HLPSV only), ensuring unparalleled pressure control and safety.
(7) Product Series Classification - Your gateway to identifying unparalleled excellence:;-2 2 Series; -3 3 Series; -5 5 Series; Crafted with versatility to tailor to every unique application.
(8)Thread size of directional spool valve ports A & B:2-G3/8; 3-G1/2; 4-G3/4; 5-G1; Explore our A, ancillary block or intermediate transition block ZPL 5S(V)/H hydraulic control shut-off valve for seamless operations.
(9)Directional valve block inflow controller options: 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, strengthened inflow controller; 8, pre-selectable for customized performance;
(10) Valve core function symbols: L, M, F, H, J, B, R, O, N;
(11) Output flow code for ports A & B: Choose from available maximum output flows of 3, 6, 10, 16, 25, 40, 63, 80, 120, 160, and 210 L/min, tailored to your system's needs;
(12) Secondary pressure limitation options: N, offering no pressure limiting protection; C, simultaneously limit pressure at actuator ports A & B; A---B---, individually limit pressure at actuator ports A & B, precision defined in units of bar;
(13) Function ON/OFF and pressure outlet options: N, no function ON/OFF nor pressure outlet; X C type for pressure limitation; S/S1 AB type for pressure limitation; A, electrical ON/OFF on side A; B, electrical ON/OFF on side B for versatile control;
(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 merged with manual operation (1=without handle, 2=with short handle); D, electric switching value control; DA(1,2), electric switching value control integrated with manual operation (1=without handle, 2=with short handle); M, manual friction positioning complete with long handle; H, pure hydraulic control (dual pilot oil ports align with oil ports A and B); F, pure hydraulic control (dual pilot oil ports perpendicular and outward to oil ports A and B);
(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 for pilot oil, facilitating an external connection to oil return control port T; E2, akin to E1 with an additional external port Y for pilot oil discharge; E3, featuring external discharge for pilot oil equipped with a 2-position 3-way magnetic ball valve, ensuring system pressure ascends to safety valve pressure within power supply scenarios;
E4, shares similarities with E1, but includes internal discharge for pilot oil, allowing port T sealing; E5, mirrors E2's features with internal pilot oil discharge and port T sealing option; E6, resembles E3 with internal discharge and sealable port T;
(17) Control voltage and the length of anti-explosion type cable options: G12-12VDC;G24-Discover the versatile voltage solutions of the Dynamic Hydraulic Can System, offering seamless compatibility with various power requirements: 24VDC; G24Ex-3m-24VDC ensures superior performance in explosive environments; G12Ex-3m-12VDC provides flexibility for lower voltage applications; and G24MA-3m-24VDC integrates advanced functionalities for modern machinery.12bb621436
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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