Discover the future of hydraulic control with our revolutionary HLPSL and HLPSV load-sensitive proportional multi-way directional spool valves. These state-of-the-art engineering masterpieces seamlessly integrate pressure, flow, and directional control into a cohesive and elegant unit, promising exceptional performance and reliability. Constructed with precision, these valves are composed of three fundamental functional modules: connecting blocks, directional valves, and end plates, tailored for integration into sophisticated hydraulic systems vital for high-end engineering machinery. They precisely manage the movement direction and speed of hydraulic cylinders, motors, and other actuators, ensuring precise and controlled operation. Outstanding features include a compact structure, superior energy efficiency, and the capability for stepless speed control. Additionally, they empower multiple actuators to operate concurrently under varying loads, offering unmatched performance and versatility for a broad spectrum of applications.
The HLPSL valves are meticulously designed for constant displacement pump systems, promising unwavering and reliable operation. On the other hand, the HLPSV valves are ingeniously crafted for variable pump systems. Although HLPSV valves may exhibit a marginally slower response time, they excel in delivering remarkable energy-saving performance, making them the ideal choice for applications where efficiency is crucial. With their advanced engineering and energy-efficient design, HLPSV valves stand out as the premier 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 - A cornerstone for consistent, reliable hydraulic performance, ensuring seamless operations.;
HLPSV: Variable Displacement Pump - The epitome of adaptability and flexibility, adjusting to meet diverse operational demands.;
(2) Connection Block Ports P & R Specifications - Precision and reliability you can depend on::
2-G3/8; Compact yet efficient, tailored for streamlined and effective operations.
3-G1/2; Sturdy and dependable, providing confidence in every application.;
4-G3/4; Advanced connectivity for exceptional control and enhanced precision.;
5, 55-G1; Ensures a superior flow rate, perfectly suited for high-demand applications.;
6-G1 1/4; Delivering unparalleled performance and efficiency in the field.;
(3) Additional Components and Specifications - Enhancing system capabilities for superior results::
C,Standard Type - A reliable baseline for diverse operational needs.;
G,Throttle Valve (For HLPSL only) - Guarantees precision control and operational accuracy.;
H,Fixed Differential Overflow Valve for Enhanced Circulating Pressure (~14 bar, HLPSL) - Optimized flow management to boost performance and efficiency.;
(4) Pilot Oil Circuit Pressure Options - Versatile and customizable pressure control for a variety of applications:0 - No pressure reducing valve; 1 - Pressure reducing valve (20 bar); 2 - Pressure reducing valve (40 bar); Providing tailored solutions to meet your specific requirements.
(5) 2/2-way Magnetic Ball Valve for System Unloading - Efficient and streamlined control for optimal system management:C - No magnetic ball valve; F - Normally open magnetic ball valve, enhances pump pressurization when powered, and unloads when unpowered; D - Normally closed magnetic ball valve, offering opposite functionality for dynamic system response.D/F - Equipped with a pressure limiting valve for secondary pressure (F50), with specified pressure value; Advanced safety measures ensure secure and reliable operations.
(6) Introducing the Tool Adjustable Pressure Limiting Valve in the Connection Block: Experience the flexibility with adjustable settings available at 63, 120, 210, 280, 315, 350, and 400 bar. For HLPSV only, the /NF model offers no pressure limiting valve. This ensures exceptional and precise pressure control tailored for diverse scenarios, securing peak performance.
(7) Product Series Classification - Your guide to identifying excellence:;-2 2 Series; -3 3 Series; -5 5 Series; Meticulously tailored to meet every specific application need.
(8)Thread size of directional spool valve ports A & B:2-G3/8; 3-G1/2; 4-G3/4; 5-G1; Whether using an ancillary block or an intermediate transition block like the ZPL 5S(V)/H hydraulic control shut-off valve, our products offer versatility and reliability.
(9)Directional valve block inflow controller options: Choose from 1, without inflow controller; 2, standard inflow controller; 4, cutting-edge 3-way flow controllers for both inlet and outlet, ideal for N 3/3-way valve; 5, strengthened inflow controller; 8, pre-selectable for customized flexibility.
(10) Valve core function symbols: L, M, F, H, J, B, R, O, N; Each symbol represents a unique functionality designed for precision and optimal performance.
(11) Output flow code for ports A & B: Explore the variety of maximum output flows available: 3, 6, 10, 16, 25, 40, 63, 80, 120, 160, 210 L/min, catering to diverse operational demands.
(12) Secondary pressure limitation options: N, opt for no pressure limiting protection, or choose C to limit the pressure of actuator ports A & B simultaneously. Alternatively, A---B--- provides separate pressure limitation for ports A & B, ensuring precision and safety, measured in bar.
(13) Function ON/OFF and pressure outlet options: N, choose without function ON/OFF and pressure outlet; X for C type pressure limitation; S/S1 for AB type pressure limitation; A for electrical ON/OFF on side A; B for electrical ON/OFF on side B, providing adaptable operation.
(14) Operation modes: A(1,2) offers manual operation with a long handle (1=without handle, 2=with short handle); E, electric proportional control; EA(1,2), combines electric proportional control and manual operation (1=without handle, 2=with short handle); D, electric switching value control; DA(1,2), blends electric switching value control and manual operation (1=without handle, 2=with short handle); M, allows manual friction positioning with a long handle; H, pure hydraulic control with two pilot oil ports aligning with oil ports A and B; F, pure hydraulic control with two pilot oil ports perpendicularly and outwardly aligned with A and B.
(15) Ancillary block port sizes: /2 G3/8; /3 G1/2; /4 G3/4; /5 G1; Ensuring compatibility and adaptability across a wide range of systems.
(16) End plate options: E1, standard end plate with external discharge of pilot oil, connecting oil return control port T externally; E2, akin to E1 but with port Y additionally attached; E3 features external discharge of pilot oil with a 2-position 3-way magnetic ball valve, allowing the system pressure to rise to the safety valve pressure in power supply scenarios;
E4, similar to E1, with internal discharge of pilot oil allowing port T to be sealed; E5, akin to E2 with internal discharge, permitting port T to be sealed; E6, similar to E3 with internal discharge, enabling port T sealing. These options ensure the adaptability and safety of your system.
(17) Explore our versatile control voltage options with anti-explosion type cable lengths tailored for your needs: G12-12VDC;G24 voltage choicedelivers exceptional performance in demanding environments.24VDC; Experience the reliability of G24Ex-3m-24VDC; G12Ex-3m-12VDC; G24MA-3m-24VDC; G12 forbb621436 power solutions.
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 proud subsidiary of the renowned China Baoan Group (stock code: 000009), we distinguish ourselves as a prestigious national high-tech enterprise. Our expertise is firmly rooted in the precise research, development, manufacturing, and sales of superior hydraulic components. Our recognition as a national 'specialized, refined, and innovative' small giant enterprise highlights our steadfast dedication to technological progress and unmatched quality. This unwavering commitment firmly establishes us as leaders in our industry.
Our flagship innovation, the load-sensitive proportional valve, stands as the epitome of cutting-edge hydraulic system control technology. Masterfully crafted for use in construction machinery and heavy-duty equipment, this versatile component is essential for critical applications, including emergency rescue operations, tunnel engineering, mining, and municipal service vehicles. We take great pride in our strategic alliances with numerous top-tier domestic manufacturers, playing a vital role in the localization of core hydraulic components for premium 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 dedication to providing exceptional products, services, and solutions. Our mission is to rise as a globally trusted supplier of premier hydraulic components, continuously setting new standards of excellence worldwide.
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