Introducing our groundbreaking HLPSL and HLPSV load-sensitive proportional multi-way directional spool valves. These revolutionary engineering marvels seamlessly integrate pressure, flow, and directional control into a single, harmonious unit, guaranteeing unmatched performance and reliability. Typically composed of three essential functional modules - connecting blocks, directional valves, and end plates - these valves are meticulously crafted for incorporation into high-end hydraulic systems, pivotal in top-tier engineering machinery. They precisely govern the movement direction and speed of hydraulic cylinders, motors, and other actuators, delivering unparalleled precision and control. Key highlights include a compact structure, superior energy efficiency, and the capability for stepless speed control. Furthermore, they enable multiple actuators to operate simultaneously under varying loads, providing unrivaled performance and versatility for any application.
The HLPSL valves are expertly tailored for constant displacement pump systems, ensuring steadfast and reliable operation. Conversely, the HLPSV valves are masterfully engineered for variable pump systems. While HLPSV valves may exhibit a slightly slower response time, they excel in delivering exceptional energy-saving performance, making them the ultimate choice for applications where efficiency is paramount. With their cutting-edge engineering and energy-efficient design, HLPSV valves emerge as the premier solution for advanced 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 - A cornerstone for consistent, unwavering performance that ensures seamless hydraulic operation.;
HLPSV: Variable Displacement Pump - Embodying adaptability at its pinnacle, this pump offers flexible and responsive control.;
(2) Connection Block Ports P & R Specifications - The epitome of precision you can trust, designed for excellence::
2-G3/8; Compact in design yet highly efficient, perfect for space-limited applications.
3-G1/2; Renowned for its reliability and robustness, ideal for demanding environments.;
4-G3/4; Advanced connectivity for superior performance, ensuring optimal fluid dynamics.;
5, 55-G1; Exceptional flow rate, ensuring unmatched fluid dynamics and peak efficiency.;
6-G1 1/4; Unmatched in performance and reliability, a choice for high-demand systems.;
(3) Additional Components and Specifications - Elevating system capabilities to new heights with these innovative features::
C,Standard Type - A dependable baseline for all applications, ensuring stability and efficiency.;
G,Throttle Valve (For HLPSL only) - Offers unparalleled precision control, enhancing performance.;
H,Fixed Differential Overflow Valve for Enhanced Circulating Pressure (~14 bar, HLPSL) - Masterfully optimized flow management for superior reliability.;
(4) Pilot Oil Circuit Pressure Options - Customizable pressure control tailored to specific needs, offering flexibility:0 - No pressure reducing valve; 1 - Pressure reducing valve (20 bar); 2 - Pressure reducing valve (40 bar); Tailored to meet your precise requirements, ensuring optimal performance.
(5) 2/2-way Magnetic Ball Valve for System Unloading - Ensuring streamlined efficiency and effectiveness with advanced technology: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 for superior system integrity.
(6) Tool Adjustable, Pressure Limiting Valve in Connection Block: Empower your hydraulic systems with precision settings that range across 63, 120, 210, 280, 315, 350, 400 bar, ensuring optimal pressure control and unmatched safety. *Note: NF option excludes pressure limiting valve (HLPSV only); crafted for ultimate reliability.
(7) Product Series Classification - Identifying excellence and catering to distinct needs:;-2 2 Series; -3 3 Series; -5 5 Series; Each series is meticulously tailored for a broad array of applications.
(8)Thread size of directional spool valve ports A & B:2-G3/8; 3-G1/2; 4-G3/4; 5-G1; A diverse range including ancillary block or intermediate transition block ZPL 5S(V)/H hydraulic control shut-off valve, designed for versatile hydraulic applications;
(9)Directional valve block inflow controller options: 1, without inflow controller; 2, includes a standard inflow controller; 4, offers advanced 3-way flow controllers for both inlet and outlet (perfect for N 3/3-way valve); 5, enhanced inflow controller; 8, pre-selectable; each option guarantees superior performance and adaptability;
(10) Valve core function symbols: L, M, F, H, J, B, R, O, N; offering a broad range of functional capabilities;
(11) Output flow code for ports A & B: Tailored maximum output flows available at 3, 6, 10, 16, 25, 40, 63, 80, 120, 160, 210 (L/min); designed to meet diverse operational demands;
(12) Secondary pressure limitation options: N, no pressure limiting protection; C, limits the pressure of actuator ports A & B simultaneously; A---B---, individually limits the pressure of actuator ports A & B, unit (bar); ensuring precise pressure management and system integrity;
(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; delivering advanced control flexibility and operational efficiency;
(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 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); a comprehensive range of modes designed for precise and adaptable control;
(15) Ancillary block port sizes: /2 G3/8; /3 G1/2; /4 G3/4; /5 G1; offering versatile options for seamless integration;
(16) End plate options: 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; solutions designed for robust performance and system safety;
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; offering versatile sealing options for enhanced system integrity and efficiency;
(17) Explore a range of control voltage options and anti-explosion type cable lengths tailored to your needs: G12-12VDC;G24-24VDC; Discover the G24Ex option with a 3m cable for 24VDC; Choose the G12Ex with a 3m cable for 12VDC; Opt for the G24MA featuring a 3m cable for 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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