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 - The key to consistent and reliable performance, ensuring smooth operations and long-lasting efficiency.;
HLPSV: Variable Displacement Pump - Offering adaptability and flexibility at its finest, catering to dynamic needs with precision.;
(2) Connection Block Ports P & R Specifications - Precision and reliability you can trust, promising unsurpassed performance::
2-G3/8; Compact and efficient for streamlined operations, delivering exceptional results.
3-G1/2; Robust and dependable, ensuring seamless integration into your system.;
4-G3/4; Advanced connectivity for superior control, optimizing your equipment's performance.;
5, 55-G1; Offering a superior flow rate for high-demand applications, meeting your rigorous standards.;
6-G1 1/4; Delivering unmatched performance in the field, elevating operational capabilities.;
(3) Additional Components and Specifications - Elevating system capabilities to new heights::
C,Standard Type - A dependable baseline for your needs, providing a sturdy foundation for any setup.;
G,Throttle Valve (For HLPSL only) - Ensuring precision control, fine-tuning your system's responsiveness.;
H,Fixed Differential Overflow Valve for Enhanced Circulating Pressure (~14 bar, HLPSL) - Optimized flow management to enhance performance, maintaining peak efficiency.;
(4) Pilot Oil Circuit Pressure Options - Customizable pressure control for various applications, offering flexibility and tailored performance:0 - No pressure reducing valve; 1 - Pressure reducing valve (20 bar); 2 - Pressure reducing valve (40 bar); Tailored solutions for your specific needs, maximizing operational effectiveness.
(5) 2/2-way Magnetic Ball Valve for System Unloading - Streamlined efficiency and control, enhancing system responsiveness and reliability: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, safeguarding your equipment.
(6) Adjustable Tool: Pressure Limiting Valve within Connection Block: Featuring adjustable settings at 63, 120, 210, 280, 315, 350, and 400 bar, ensuring seamless adaptability and precision control for diverse applications. /NF: Absence of pressure limiting valve (HLPSV only) for scenarios requiring maximum flow.
(7) Product Series Classification - Setting the Benchmark for Excellence:;-2 2 Series; -3 3 Series; -5 5 Series; Meticulously crafted to cater to every unique application with precision and efficiency.
(8)Thread Size Specifications for Directional Spool Valve Ports A & B:2-G3/8; 3-G1/2; 4-G3/4; 5-G1; A seamless integration with ancillary blocks or intermediate transition blocks ZPL 5S(V)/H hydraulic control shut-off valve; engineered for optimal performance.
(9)Directional Valve Block Inflow Controller Options: 1, 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); 5, reinforced inflow controller; 8, pre-selectable for tailored flow control.
(10) Valve Core Function Symbols: Offering versatile functional symbols L, M, F, H, J, B, R, O, N to meet diverse operational needs.
(11) Output Flow Code for Ports A & B: Delivering an extensive range of maximum output flows - 3, 6, 10, 16, 25, 40, 63, 80, 120, 160, 210 (L/min) for unmatched performance.
(12) Secondary Pressure Limitation Options: N, no pressure limiting protection; C, simultaneous pressure limitation for actuator ports A & B; A---B---, independent pressure limitation for actuator ports A & B, ensuring safety with precision (unit bar).
(13) Function ON/OFF and Pressure Outlet Options: N, devoid of function ON/OFF and pressure outlet; X C type pressure limitation; S/S1 AB type pressure limitation; A, integrating electrical ON/OFF on side A; B, electrical ON/OFF on side B for enhanced control.
(14) Operation Modes: A(1,2), featuring manual operation with a long handle (1=without handle, 2=with short handle); E, electric proportional control for precise adjustments; EA(1,2), combining electric proportional control and manual operation (1=without handle, 2=with short handle); D, electric switching value control; DA(1,2), combining 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 with alignment of two pilot oil ports to oil ports A and B; F, pure hydraulic control with perpendicular arrangement of two pilot oil ports to oil ports A and B and outward respectively.
(15) Ancillary Block Port Sizes: Fine-tuned options to meet specific needs: /2 G3/8; /3 G1/2; /4 G3/4; /5 G1;
(16) End Plate Options: E1, standard end plate ensuring external discharge of pilot oil, connecting the oil return control port T externally; E2, akin to E1, with external discharge of pilot oil plus port Y; E3, featuring external discharge of pilot oil, a 2-position 3-way magnetic ball valve is mounted for scenarios where power supply escalates the system pressure to the safety valve pressure;
E4, similar to E1, provides internal discharge of pilot oil, with port T being sealable; E5, akin to E2, offers internal discharge of pilot oil with a sealable port T; E6, reminiscent of E3, also allows for internal discharge of pilot oil and a sealable port T;
(17) Control Voltage and Anti-Explosion Type Cable Length Options: G12-12VDC; meticulously designed for secure operations in stringent environments.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, lighting up the hydraulic industry with groundbreaking advancements and unmatched excellence. As a prestigious subsidiary of the esteemed China Baoan Group (stock code: 000009), we stand tall as a national high-tech enterprise recognized for our significant technological achievements. Our core expertise lies in the meticulous research, development, manufacturing, and sales of premium hydraulic components. Our recognition as a national 'specialized, refined, and innovative' small giant enterprise underscores our steadfast commitment to advancing technology and delivering superior quality. This relentless dedication propels us to the forefront of the hydraulic industry.
Our flagship product, the Load Sensitive Control Valve for Enhanced Mining Equipment Safety, represents the pinnacle of advanced hydraulic system control. Expertly engineered for construction machinery and heavy-duty equipment, this versatile component is indispensable 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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