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 and unwavering performance.;
HLPSV: Variable Displacement Pump - Embodying adaptability at its pinnacle.;
(2) Connection Block Ports P & R Specifications - The epitome of precision you can trust::
2-G3/8; Compact in design, yet highly efficient.
3-G1/2; Renowned for reliability and robustness.;
4-G3/4; Advanced connectivity for superior performance.;
5, 55-G1; Exceptional flow rate ensuring optimal fluid dynamics.;
6-G1 1/4; Unmatched in performance and reliability.;
(3) Additional Components and Specifications - Elevating system capabilities to new heights::
C,Standard Type - A dependable baseline for all applications.;
G,Throttle Valve (For HLPSL only) - Offers unparalleled precision control.;
H,Fixed Differential Overflow Valve for Enhanced Circulating Pressure (~14 bar, HLPSL) - Masterfully optimized flow management.;
(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.
(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.
(6) Tool Adjustable, Pressure Limiting Valve in Connection Block: Experience precision with settings available at 63, 120, 210, 280, 315, 350, and 400 bar. For users prioritizing safety, the HLPSV offers an option /NF, ensuring seamless operation without a pressure limiting valve. This guarantees optimal pressure control and safety.
(7) Product Series Classification - Elevating performance standards, identifying excellence:;-2 2 Series; -3 3 Series; -5 5 Series; Skillfully engineered and tailored for diverse applications, meeting every need with precision.
(8)Thread size compatibility of directional spool valve ports A & B:2-G3/8; 3-G1/2; 4-G3/4; 5-G1; Enhance your system with ancillary blocks or intermediate transition blocks such as ZPL 5S(V)/H hydraulic control shut-off valve.
(9)Directional valve block inflow controller options: Offering flexibility with 1, without inflow controller; 2, standard inflow controller; 4, advanced 3-way flow controllers for both inlet and outlet (optimal for N 3/3-way valve); 5, reinforced inflow controller; 8, pre-selectable configurations for tailored performance.
(10) Valve core function symbols: Versatile choices with L, M, F, H, J, B, R, O, N; each symbolizing specific capabilities.
(11) Output flow code for ports A & B: Maximize efficiency with available maximum output flows: 3, 6, 10, 16, 25, 40, 63, 80, 120, 160, 210 (L/min); expertly designed for varied operational needs.
(12) Secondary pressure limitation options: Protect your system with N, no pressure limiting protection; C, simultaneous pressure limitation for actuator ports A & B; A---B---, individually tailored pressure limitations for actuator ports A & B, measured in unit (bar).
(13) Function ON/OFF and pressure outlet options: Customize functionalities with 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; for optimized system control.
(14) Operation modes: A(1,2), manual operation with long handle options (1=without handle, 2=with short handle); E, state-of-the-art electric proportional control; EA(1,2), combining electric proportional control with manual operation; D, electric switching value control; DA(1,2), a hybrid of electric switching value control and manual operation; M, manual friction positioning with a long handle; H, pure hydraulic control with two pilot oil ports aligned with oil ports A and B; F, advanced hydraulic control with pilot oil ports oriented perpendicularly to oil ports A and B, extending outward.
(15) Ancillary block port sizes: Diverse options with /2 G3/8; /3 G1/2; /4 G3/4; /5 G1; engineered for varied system requirements.
(16) End plate options: Choose from E1, standard end plate with external pilot oil discharge, facilitating control through externally connected oil return control port T; E2, similar to E1 with an additional port Y; E3, featuring a 2-position 3-way magnetic ball valve, ensuring system pressure elevation to safety valve levels during power supply scenarios; E4 to E6 offer internal pilot oil discharge with optional port T sealing.
E4, similar to E1, offers an internal discharge of pilot oil and the potential to seal port T; E5, akin to E2, provides similar internal pilot oil management; E6, parallel to E3, also features internal discharge and port T sealing options, catering to a range of operational requirements.
(17) Control voltage and the length of anti-explosion type cable options: G12-12VDC;G24 - The versatile 24VDC option for robust and seamless integrations;-24VDC; G24Ex-3m-24VDC; G12Ex-3m-12VDC; G24MA-3m-24VDC; G12 - The reliable 12VDC choice for compact and efficient systems;bb621436
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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