Introducing our groundbreaking HLPSL and HLPSV load-sensitive proportional multi-way directional spool valves, a testament to advanced engineering and design. These revolutionary components fluidly integrate three crucial controls-pressure, flow, and direction-into a singular, cohesive unit that promises unmatched performance and reliability of the highest order. Typically composed of three essential functional modules-connecting blocks, directional valves, and end plates-these valves are precisely crafted for inclusion within high-end hydraulic systems, indispensable in elite engineering machinery. They expertly regulate the movement direction and velocity of hydraulic cylinders, motors, and other actuators, ensuring extraordinary precision and control. Noteworthy attributes include a compact structure, remarkable energy efficiency, and the capability for stepless speed control. Additionally, they empower multiple actuators to function simultaneously under varying loads, offering unparalleled performance and versatility across diverse applications.
The HLPSL valves are meticulously crafted for constant displacement pump systems, ensuring unwavering and dependable operation. On the other hand, the HLPSV valves are ingeniously designed for variable pump systems. Despite a slightly slower response time, HLPSV valves excel in delivering exceptional energy-saving performance, rendering them the optimal choice for applications where efficiency is crucial. With their state-of-the-art engineering and energy-conserving 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 - The key to consistent and reliable performance.;
HLPSV: Variable Displacement Pump - Adaptability and flexibility at its finest.;
(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; Robust and dependable.;
4-G3/4; Advanced connectivity for superior control.;
5, 55-G1; Offering a superior flow rate for high-demand applications.;
6-G1 1/4; Delivering unmatched performance in the field.;
(3) Additional Components and Specifications - Elevating system capabilities::
C,Standard Type - A dependable baseline for your needs.;
G,Throttle Valve (For HLPSL only) - Ensuring precision control.;
H,Fixed Differential Overflow Valve for Enhanced Circulating Pressure (~14 bar, HLPSL) - Optimized flow management to enhance 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, 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; Advanced safety measures for secure operations.
(6) Tool Adjustable, Pressure Limiting Valve in Connection Block: Tailor your system with adjustable settings at 63, 120, 210, 280, 315, 350, and 400 bar. Choose /NF for configurations without a pressure limiting valve (HLPSV only), guaranteeing unparalleled pressure control across a multitude of scenarios.
(7) Product Series Classification - Identifying excellence:;-2 2 Series; -3 3 Series; -5 5 Series; Each series is meticulously engineered for unmatched application-specific performance.
(8)Thread size of directional spool valve ports A & B:2-G3/8; 3-G1/2; 4-G3/4; 5-G1; Also featuring A, ancillary block, or intermediate transition block ZPL 5S(V)/H hydraulic control shut-off valve for versatile integration.
(9)Directional valve block inflow controller options: 1, standard model without inflow controller; 2, standard inflow controller; 4, advanced 3-way flow controllers for both inlet and outlet, perfect for N 3/3-way valve configurations; 5, reinforced inflow controller; 8, pre-selectable to match specific needs.
(10) Valve core function symbols: Choose from L, M, F, H, J, B, R, O, N for optimized functionality.
(11) Output flow code for ports A & B: Experience maximum output flows in a range of 3, 6, 10, 16, 25, 40, 63, 80, 120, 160, to 210 L/min for enhanced precision.
(12) Secondary pressure limitation options: N, omit pressure limiting protection; C, simultaneous pressure limitation for actuator ports A & B; A---B---, individual pressure limitations for actuator ports A & B, finely tuned in unit (bar).
(13) Function ON/OFF and pressure outlet options: N, exclude function ON/OFF and pressure outlet; X C type pressure limitation; S/S1 AB type pressure limitation; Enjoy electrical ON/OFF control on side A or B for tailored operations.
(14) Operation modes: A(1,2), manual control available with long or short handles; E, electric proportional control; EA(1,2), combines electric proportional control with manual operation for flexibility; D, electric switching value control; DA(1,2), electric switching value control enhanced by manual operation; M, manual friction positioning with a long handle; H, pure hydraulic control aligning two pilot oil ports with oil ports A and B; F, pure hydraulic control with perpendicular pilot oil ports, ensuring outward orientation.
(15) Ancillary block port sizes: Choose from /2 G3/8, /3 G1/2, /4 G3/4, /5 G1 to meet diverse system requirements.
(16) End plate options: E1, standard end plate with external discharge of pilot oil, connecting oil return control port T externally; E2, similar to E1 but with port Y additionally attached for enhanced functionality; E3, incorporates a 2-position 3-way magnetic ball valve, elevating system pressure to the safety valve limit in power supply scenarios.
E4, mirrors E1 with internal discharge of pilot oil and sealable port T; E5, resembles E2 with internal oil discharge and sealable port T; E6, similar to E3, providing internal discharge and sealable port T for versatile applications.
(17) Control voltage and the length of anti-explosion type cable options: Opt for G12-12VDC, ensuring reliable and safe operational standards.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 excellence within the hydraulic industry, carving a niche with our groundbreaking advancements and unrivaled quality. As a proud subsidiary of the prestigious China Baoan Group (stock code: 000009), we have established ourselves as a nationally recognized high-tech enterprise. Our expertise is reflected in our meticulous research, development, manufacturing, and sales of superior hydraulic components. Our designation as a national 'specialized, refined, and innovative' small giant enterprise highlights our unwavering dedication to technological innovation and exceptional quality standards. This steadfast commitment has propelled us to the forefront of our industry, establishing us as leaders in hydraulic technology.
Our flagship creation, the load-sensitive proportional valve, represents the zenith of advanced hydraulic system control. Ingeniously crafted for construction machinery and robust equipment, this adaptable component is indispensable for critical applications, including emergency rescue operations, tunnel engineering, mining, and municipal service vehicles. We are deeply honored by our strategic partnerships with leading domestic manufacturers, significantly contributing to the localization of core hydraulic components for high-end mechanical equipment. Anchored by our core philosophy-'serving customers with technology, impressing customers with our attitude, and retaining customers with quality'-we are unwavering in our pursuit of delivering exceptional products, services, and solutions. Our mission is to rise as a globally trusted supplier of premier hydraulic components, continually setting new standards of excellence across the globe.
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