Behold the marvel of modern engineering with our pioneering HLPSL and HLPSV load-sensitive proportional multi-way directional spool valves. These masterpieces of hydraulic excellence represent the zenith of innovation, flawlessly merging pressure, flow, and directional control into one unified masterpiece. This ensures unmatched performance and dependability in every scenario. Typically comprising three core functional modules - connecting blocks, directional valves, and end plates - these valves are meticulously engineered for seamless integration into top-of-the-line hydraulic systems, essential for premier engineering machinery. They precisely regulate the direction and speed of hydraulic cylinders, motors, and other actuators, offering unparalleled precision and control. Key features include a compact design, outstanding energy efficiency, and the capability for stepless speed control. Additionally, they empower multiple actuators to operate simultaneously under varying loads, providing unparalleled performance and versatility for any application.
The HLPSL valves are meticulously crafted for constant displacement pump systems, ensuring unwavering and dependable operation in every environment. Conversely, the HLPSV valves are exquisitely engineered for variable pump systems. Although HLPSV valves may present a slightly slower response time, they shine in delivering remarkable energy-saving capabilities, making them the ultimate choice for applications where efficiency is key. With their state-of-the-art engineering and energy-efficient design, HLPSV valves emerge as the premier solution for sophisticated hydraulic control needs, offering a perfect blend of precision, reliability, and efficiency.
| 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 - The foundation of reliable and persistent performance, ensuring your operations run seamlessly and efficiently.;
HLPSV: Variable Displacement Pump - Showcasing adaptability and flexibility, offering extraordinary versatility to address diverse operational requirements.;
(2) Connection Block Ports P & R Specifications - Precision meets reliability here, ensuring dependable operations::
2-G3/8; Engineered for compact efficiency, supporting streamlined and uninterrupted operational flows.
3-G1/2; Crafted for robustness and reliability, providing a solid and enduring foundation for your system.;
4-G3/4; Facilitating advanced connectivity, delivering superior control and enhanced system integration.;
5, 55-G1; With a superior flow rate, ideal for high-demand applications, guaranteeing consistent performance.;
6-G1 1/4; Delivering unmatched performance, designed to excel in the field and triumph over challenges.;
(3) Additional Components and Specifications - Elevating system capabilities to unprecedented heights::
C,Standard Type - A dependable and trustworthy baseline, tailored to meet your essential operational needs.;
G,Throttle Valve (For HLPSL only) - Assures precision in control, enhancing the overall efficiency of the system.;
H,Fixed Differential Overflow Valve for Enhanced Circulating Pressure (~14 bar, HLPSL) - Optimizes flow management, promoting superior performance and dependability.;
(4) Pilot Oil Circuit Pressure Options - Providing customized pressure control solutions tailored for varied applications:0 - No pressure reducing valve; 1 - Pressure reducing valve (20 bar); 2 - Pressure reducing valve (40 bar); Delivering tailored solutions to fulfill your specific operational needs seamlessly.
(5) 2/2-way Magnetic Ball Valve for System Unloading - Streamlining efficiency and enhancing control:C - No magnetic ball valve; F - Normally open magnetic ball valve, pressurizes the pump when powered, unloads it when unpowered; D - Normally closed magnetic ball valve, unloads the pump when powered, pressurizes it when unpowered;D/F - Experience superior safety standards with our pressure limiting valve designed for secondary pressure (F50), featuring a specified pressure value for enhanced security in operation.
(6) Tool Adjustable Pressure Limiting Valve in Connection Block: Discover unprecedented versatility and precision with our adjustable settings at 63, 120, 210, 280, 315, 350, and 400 bar levels. For simplicity seekers, our /NF option omits the pressure limiting valve, specially crafted for HLPSV. This essential feature ensures optimal pressure regulation in various scenarios, becoming a crucial asset for all your hydraulic requirements.
(7) Product Series Classification - Reach the Epitome of Excellence:;-2 2 Series; -3 3 Series; -5 5 Series; Each meticulously crafted series is tailored to meet specific applications, guaranteeing a perfect fit for your precise needs.
(8)Thread size of directional spool valve ports A & B:2-G3/8; 3-G1/2; 4-G3/4; 5-G1; inclusive of ancillary blocks or the intermediate transition block ZPL 5S(V)/H hydraulic control shut-off valve, skillfully designed for smooth integration.
(9)Directional valve block inflow controller options: Choose from: 1, without inflow controller; 2, standard inflow controller; 4, an advanced 3-way flow controller accommodating both inlet and outlet, ideal for the N 3/3-way valve; 5, reinforced inflow controller; 8, pre-selectable options, each engineered for enhanced precision and efficiency.
(10) Valve core function symbols: Discover a diverse range of core functions: L, M, F, H, J, B, R, O, N, each rigorously developed to meet distinct functional requirements.
(11) Output flow code for ports A & B: Achieve maximum efficiency with available high-capacity output flows: 3, 6, 10, 16, 25, 40, 63, 80, 120, 160, 210 L/min, specifically designed for peak performance.
(12) Secondary pressure limitation options: Select from: N, no pressure limiting protection; C, simultaneous pressure limitation of actuator ports A & B; A---B---, independent pressure limitation for ports A & B, all expressed in bar, to ensure solid system safety.
(13) Function ON/OFF and pressure outlet options: Tailor your control settings with options including: N, without function ON/OFF or pressure outlet; X, C type pressure limitation; S/S1, AB type pressure limitation; A, electronic ON/OFF on side A; B, electronic ON/OFF on side B, each designed for precise control.
(14) Operation modes: Explore distinct operation modes available: A(1,2), manual operation with optional long or short handle; E, electric proportional control; EA(1,2), a fusion of electric proportional control and manual operation; D, electric switching value control; DA(1,2), combined electric switching value control and manual operation; M, manual friction positioning with long handle; H, pure hydraulic control (pilot oil ports aligned with oil ports A and B); F, pure hydraulic control with perpendicular pilot oil ports, crafted for complete control.
(15) Ancillary block port sizes: Choose from a range of adaptable options: /2 G3/8; /3 G1/2; /4 G3/4; /5 G1, designed for seamless adaptability.
(16) End plate options: Customize your system with our diverse end plate selections including: E1, a standard option with external discharge for pilot oil and an external oil return control port T. Choose E2 for a variant of E1 featuring an additional port Y, or E3 which boasts a 2-position 3-way magnetic ball valve, optimizing system pressure to safety valve levels when powered.
E4 mirrors E1 but offers internal discharge of pilot oil with a sealing port T. For a variation akin to E2 with internal discharge, select E5. E6 is comparable to E3, all designed to guarantee precise discharge control.
(17) Control voltage and anti-explosion type cable length options: Choose from our robust control voltage options such as G12-12VDC, crafted to ensure safety and perfect compatibility with specialized industrial applications.G24-24VDC; G24Ex-3m-24VDC; G12Ex-3m-12VDC; G24MA-3m-24VDC; G12bb621436
Since our inception in 2009, Jiangsu KM Hydraulic Control System Co., Ltd. has been a beacon of innovation and unmatched excellence in the hydraulic industry. As a proud subsidiary of the prestigious China Baoan Group (stock code: 000009), we are recognized as a leading national high-tech enterprise. Our core competencies encompass the intricate research, development, manufacturing, and sales of top-tier hydraulic components. Our esteemed status as a national 'specialized, refined, and innovative' small giant enterprise highlights our unwavering dedication to technological progress and superior quality. This steadfast commitment firmly establishes us as leaders in our industry.
Our premier offering, the load-sensitive proportional valve, stands as the zenith of sophisticated hydraulic system control. Carefully designed for construction machinery and robust equipment, this adaptable component is paramount in critical applications such as emergency rescue, tunnel engineering, mining, and municipal service vehicles. We take great pride in our strategic partnerships with numerous key domestic manufacturers, playing a vital role in the localization of essential 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 committed to delivering outstanding products, services, and solutions. Our mission is to rise as a globally reliable provider of premier hydraulic components, setting new standards of excellence on the world stage.
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