Introducing our groundbreaking HLPSL and HLPSV load-sensitive proportional multi-way directional spool valves. These pioneering engineering masterpieces seamlessly amalgamate pressure, flow, and directional control into one harmonious unit, setting new standards in performance and reliability. Typically composed of three indispensable functional modules - connecting blocks, directional valves, and end plates - these valves are meticulously crafted for integration into elite hydraulic systems, serving as pivotal components in top-tier engineering machinery. They precisely govern the movement direction and speed of hydraulic cylinders, motors, and other actuators, offering unparalleled precision and control. Key highlights include a compact structure, outstanding energy efficiency, and the capability for stepless speed control. Moreover, they empower multiple actuators to operate simultaneously under varying loads, providing unmatched performance and versatility across 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 - Your Key to Operational Excellence
HLPSL: Constant Displacement Pump - The cornerstone of consistent, reliable performance.;
HLPSV: Variable Displacement Pump - Mastering adaptability and flexibility.;
(2) Connection Block Ports P & R Specifications - Precision and reliability you can trust::
2-G3/8; Compact and efficient for streamlined operations.
3-G1/2; Engineered for robustness and dependability.;
4-G3/4; Delivering advanced connectivity for superior control.;
5, 55-G1; Designed for a superior flow rate in high-demand applications.;
6-G1 1/4; Unleashing unmatched performance in the field.;
(3) Additional Components and Specifications - Elevating system capabilities::
C,Standard Type - A steadfast baseline for all your needs.;
G,Throttle Valve (For HLPSL only) - Assurance of precision control.;
H,Fixed Differential Overflow Valve for Enhanced Circulating Pressure (~14 bar, HLPSL) - Optimizing flow management to elevate performance.;
(4) Pilot Oil Circuit Pressure Options - Customizable pressure control for various applications:0 - No pressure reducing valve; 1 - Pressure reducing valve (20 bar); 2 - Pressure reducing valve (40 bar); Tailored solutions for your specific needs.
(5) 2/2-way Magnetic Ball Valve for System Unloading - Streamlined efficiency and control:C - No magnetic ball valve; F - Normally open magnetic ball valve, energizes to pressurize the pump, safely unloads when unpowered; D - Normally closed magnetic ball valve, powers up to unload, pressurizes when unpowered;D/F - With pressure limiting valve for secondary pressure (F50) with specified pressure value; The pinnacle of advanced safety for secure operations.
(6) Tool Adjustable, Pressure Limiting Valve in Connection Block: Elevate your control precision with adjustable settings available at 63, 120, 210, 280, 315, 350, and 400 bar. Opt for /NF if no pressure limiting valve is preferred (HLPSV only). This ensures unparalleled pressure modulation across diverse operational scenarios.
(7) Product Series Classification - Identifying excellence: Discover our distinct range for excellence and precision:;-2 2 Series; -3 3 Series; -5 5 Series; Tailored to meet the unique demands of every application.
(8)Thread size of directional spool valve ports A & B: Choose from 2-G3/8, 3-G1/2, 4-G3/4, and 5-G1; along with A, ancillary block or intermediate transition block ZPL 5S(V)/H hydraulic control shut-off valve; to suit your specific needs.2-G3/8; 3-G1/2; 4-G3/4; 5-G1; A, ancillary block or intermediate transition block ZPL 5S(V)/H hydraulic control shut-off valve;
(9)Directional valve block inflow controller options: Tailor your flow control with selections such as: 1, without inflow controller; 2, standard inflow controller; 4, 3-way flow controllers for both inlet and outlet (ideal for N 3/3-way valve); 5, strengthened inflow controller; 8, pre-selectable options to match your precision needs.
(10) Valve core function symbols: Explore function versatility with core symbols like L, M, F, H, J, B, R, O, N; ensuring optimal performance adaptation.
(11) Output flow code for ports A & B: Choose from a spectrum of available maximum output flows: 3, 6, 10, 16, 25, 40, 63, 80, 120, 160, 210 (L/min); to match the exact flow demands of your application.
(12) Secondary pressure limitation options: Customize pressure control with options: N, no pressure limiting protection; C, simultaneous pressure limitation of actuator ports A & B; A---B---, independent limitation of actuator ports A & B, ensuring safe and reliable pressure management, unit (bar).
(13) Function ON/OFF and pressure outlet options: Tailor your control with 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; offering versatile and precise control solutions.
(14) Operation modes: Explore multiple operation modes: A(1,2), manual with long or short handle; E, electric proportional control; EA(1,2), combined electric and manual operation; D, electric switching value control; DA(1,2), combined electric switching and manual operation; M, manual friction positioning with long handle; H, pure hydraulic control aligned with oil ports A and B; F, pure hydraulic control perpendicular and outwardly aligned with oil ports A and B; each designed for precise application.
(15) Ancillary block port sizes: Choose from precision port sizes: /2 G3/8; /3 G1/2; /4 G3/4; /5 G1; tailored to your specific requirements.
(16) End plate options: Customize with end plate choices: E1, standard end plate with external pilot oil discharge; E2, similar to E1 with additional port Y; E3, with 2-position 3-way magnetic ball valve; or E4 to E6, with internal pilot oil discharge and sealable port T; each ensuring optimal system safety and efficiency.
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;
(17) Control voltage and the length of anti-explosion type cable options: Ensure safety and reliability with G12-12VDC;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 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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